[Q] nook simple touch battery replacement - Nook Touch General

Hi guys. I have accidentally detached the connector from the battery. I don't know how to solder. I have looked for, but cannot find a replacement battery for my Nook. the battery is a 3.7V, 1,530mAh Li-ion battery (model: MLP305787).
Does anyone know where I can find one?
Bill

The connector pins are not soldered, but crimped on in any case.
Of the six wires, two are for plus, two are for ground and two are for the temp sensor.
The temp sensor is the only non-generic aspect;
I don't know whether it's PTC or NTC or what its curve is.

Thanks for the reply, but I don't know how to use the information you have provided. I don't know anything about crimping wires and don't know where to put the plus, ground and temp wires. I would need a pretty detailed howto to try this on my own. Otherwise, it seems a replacement battery would be best for me.
Bill

I meant mostly to get the exact battery with a connector and the right temperature sensor might be difficult.
I doubt that B&N supplies this.
OTOH, a generic lithium battery about the right size is probably easy to find.
You'd have to use the wires from the old battery.
If you were enterprising enough, you could even use the old temperature sensor.
I know that this doesn't exactly help you with your problem.
If I screwed up the connector, I would probably just solder the wires directly to the board.

briv said:
Hi guys. I have accidentally detached the connector from the battery. I don't know how to solder. I have looked for, but cannot find a replacement battery for my Nook. the battery is a 3.7V, 1,530mAh Li-ion battery (model: MLP305787).
Does anyone know where I can find one?
Bill
Click to expand...
Click to collapse
hint :
ADB
cat /sys/class/power_supply/bq27510-0/manufacturer
says that the battery for NST was produced by "Lico".
My battery is also dead.
B&N said they couldn't help me. Sic*
http://www.lico.com.tw/en/product.aspx?cid=_00000033
Maybe an email to Lico would solve our problem.
I think this is the closest one to ours :
http://www.lico.com.tw/en/product_dtl.aspx?cid=_00000033&id=_00000230
contact :
http://www.lico.com.tw/en/contact.aspx

There is this: http://sunpow.wordpress.com/2012/05/31/nook-simple-touch-battery-ml305787-dr-nk03/
They are here: http://www.sunpowtech.com/
It seems like a lot of their site is broken.

Renate NST said:
There is this: http://sunpow.wordpress.com/2012/05/31/nook-simple-touch-battery-ml305787-dr-nk03/
They are here: http://www.sunpowtech.com/
It seems like a lot of their site is broken.
Click to expand...
Click to collapse
>2012
>no search option on the site
I wrote them a letter.
We'll see if they have these batteries in stock.

'Lico' responded to my e-mail.
They claim to have 40K " ML306787" batteries for sale at the moment.

I've checked the battery in my new NSTGL.
This time the manufacturer is "Mcnair"
http://www.mcnair.com.cn/en/Product.asp

It looks as if this outfit actually has them. At least their site let me add one to the shopping cart.

Sun_Cat said:
It looks as if this outfit actually has them[/URL]. At least their site let me add one to the shopping cart.
Click to expand...
Click to collapse
I know this topic is rather old,
but did you succeed in replacing the battery with the one on that website?
Thanks!

mergen3107 said:
Has anyone tried to install the NewPower99 for Glowlight which has 1900 mah? The price is too high for battery I think, but could not find anything more than 1900 mah.
Click to expand...
Click to collapse
FWIW, I just did a search (as my NST battery seems to be draining very fast, I suspect likely because it is simply no longer holding charge), there are ads on eBay for BNRV300 battery replacement with 1900-2100 MAh capacity from US sellers for as low $14.95 shipped.

Related

High Capacity Battery?

Does anyone know of any high capacity batteries available for the Ameo/Athena?
Or any articles anywhere to say they are on their way?
Not too sure about an internal extended battery but I use one of these http://www.gpsforless.co.uk/product_details.php?id=4111 I can run for three days with both units charged without recource to the car or mains, light weight and easy to carry plus it can charge most other devices - worth a look - Mike
Perfect! Want one! Cheers!
The link doesn't work any more. In the meantime, we have a 2400mAh high capacity battery and charger for the Athena. It is not in stock right now but we are thinking about bringing some in by Air. Let us know if you need any.
Mark
Lion Battery said:
The link doesn't work any more. In the meantime, we have a 2400mAh high capacity battery and charger for the Athena. It is not in stock right now but we are thinking about bringing some in by Air. Let us know if you need any.
Mark
Click to expand...
Click to collapse
What is the price? Is it the same size/weight as the existing battery? Not knowing much, does 2400 vs 2200 mAh make much difference in battery life? THANKS!
few questions regarding new battery...
Lion Battery said:
The link doesn't work any more. In the meantime, we have a 2400mAh high capacity battery and charger for the Athena. It is not in stock right now but we are thinking about bringing some in by Air. Let us know if you need any.
Mark
Click to expand...
Click to collapse
Let me know how much and ETA. Some questions:
- How much do these extend the battery life of the device? Talk time / Stand-by time?
- Do they come with the metal clip or without metal clip?
- How do you use charger? USB, etc?
- Description says External Battery. What's up with that? Does the battery go inside or outside of the phone?
I may be in the market for a few of these so let us know ASAP and thanks. I hope the price isn't crazy.
posted to wrong area...
One more thing guys, this thread belongs in the "Athena accessories" section not here. For future reference.
ltxda said:
One more thing guys, this thread belongs in the "Athena accessories" section not here. For future reference.
Click to expand...
Click to collapse
Agreed, here link to same topic. I waiting for one myself.
http://forum.xda-developers.com/showthread.php?t=315819
Lion Battery said:
The link doesn't work any more. In the meantime, we have a 2400mAh high capacity battery and charger for the Athena. It is not in stock right now but we are thinking about bringing some in by Air. Let us know if you need any.
Mark
Click to expand...
Click to collapse
Where you go??? Let us know what's going on. I may want to purchase a few of these if all is well. Don't post and run!...unless you were Spamming the forum and that will bring a ban. :-/
Mark is generally trustworthy, judging by his activity on other forums. He is probably just busy at work. Give it time, he'll answer.
I been buying mugen batteries for years and Mark is a nice guy, no spammer trust me. the pictures show that the battery does have a clip like the original battery. It probably says external because it is removeable (not an internal battery).From my experience with mugen, a 2200 mah battery versus a stock 2200mah the mugen battery will last longer.
so even if its only a few more mah I would rather buy the mugen anyday than the stock battery. You will hear from me soon mark for an order. GM
ltxda said:
Where you go??? Let us know what's going on. I may want to purchase a few of these if all is well. Don't post and run!...unless you were Spamming the forum and that will bring a ban. :-/
Click to expand...
Click to collapse
NO spamming! I went to NYC for the weekend as a little get away with the wife. Spent most of the time shopping in Manhattan. Looking for cheap stores. Ended up at expensive stores. I think it'll be cheaper to get a new wife.
On the other hand, maybe not.
But I'm back today and I think I'll tell the powers that be to get some brought in by air. I'll have someone contact the factory and see when we can have some shipped in by air. Hopefully it'll be faster than by sea. Otherwise we'll have to wait for the ones on the ocean. I'll let you know tomorrow.
Mark
Lion Battery said:
NO spamming! I went to NYC for the weekend as a little get away with the wife. Spent most of the time shopping in Manhattan. Looking for cheap stores. Ended up at expensive stores. I think it'll be cheaper to get a new wife.
On the other hand, maybe not.
But I'm back today and I think I'll tell the powers that be to get some brought in by air. I'll have someone contact the factory and see when we can have some shipped in by air. Hopefully it'll be faster than by sea. Otherwise we'll have to wait for the ones on the ocean. I'll let you know tomorrow.
Mark
Click to expand...
Click to collapse
Thanks Mark, we are looking forward to your response.
Lion Battery said:
NO spamming! I went to NYC for the weekend as a little get away with the wife. Spent most of the time shopping in Manhattan. Looking for cheap stores. Ended up at expensive stores. I think it'll be cheaper to get a new wife.
On the other hand, maybe not.
But I'm back today and I think I'll tell the powers that be to get some brought in by air. I'll have someone contact the factory and see when we can have some shipped in by air. Hopefully it'll be faster than by sea. Otherwise we'll have to wait for the ones on the ocean. I'll let you know tomorrow.
Mark
Click to expand...
Click to collapse
Thanks for the response. I'm anxious to get the answers to my questions so when you have a moment please review and provide the answers you can.
Don't you know women are more expensive than gadgets?
ltxda said:
Let me know how much and ETA. Some questions:
- How much do these extend the battery life of the device? Talk time / Stand-by time?
- Do they come with the metal clip or without metal clip?
- How do you use charger? USB, etc?
- Description says External Battery. What's up with that? Does the battery go inside or outside of the phone?
I may be in the market for a few of these so let us know ASAP and thanks. I hope the price isn't crazy.
Click to expand...
Click to collapse
Q.) How much do these extend the battery life of the device? Talk time / Stand-by time?
A.) I will have to get back to you. The manufacturer is checking that information now. But, typically, we can expect about a 10% increase in capacity.
Q.) Do they come with the metal clip or without metal clip?
A.) Yes it comes with the metal clip and the metal is at the end of the battery.
Q.) How do you use charger? USB, etc?
A.) i) The charger could use the USB cable to connect with the computer for charging, or ii) it also can use the original AC adaptor with the USB plug.
Q.) Description says External Battery. What's up with that? Does the battery go inside or outside of the phone?
A.) It is a battery that fits identically like the OEM battery. We indicate it as external meaning that you do not need to use any tools to open the device to add the battery. Some devices require the user to use Torx screwdrivers to pry open the case to add a battery. This battery is not designed in this fashion.
I hope that these have answered most of your questions. Now, when will we get them? I asked Mugen Power to see if we can get them flown in and it is possible however, they will only be ready to ship by 8/10. So we should have a some in stock for about 8/17. More will arrive about 2-3 weeks after that. We will keep you posted.
Mark

How to change RTC battery ?

Each time when replacing battery date and time settings on my wizard return to default settings.
It seems CMOS battery on motherboard is dead.
Is there any way to change it and where to buy it?
Watchman said:
It seems CMOS battery on motherboard is dead.
Is there any way to change it and where to buy it?
Click to expand...
Click to collapse
I don't believe that You're battery is dead. It's also heppend to me when my phone was new. Every time when I remove battery, I must set my clock and date again and again.
RTC Battery
nikolica said:
I don't believe that You're battery is dead. It's also heppend to me when my phone was new.
Click to expand...
Click to collapse
My Wizard is about two years old and I have had not noticed it happening before .
I plan to open housing soon to look for such battery.
RE
If You need help for opening You're wizard look this article
http://www.pdagold.com/articles/detail.asp?a=274
you can't, really.
there's a "gold cap" small capacitor surface-mounted to the motherboard of your wizard top left. this retains enough charge to keep the RTC time right, and they wear out. replacing one is risky, as the heat from a conventional soldering gun may damage components - it's something i'd advise just living with.
RTC battery
landwomble said:
there's a "gold cap" small capacitor surface-mounted to the motherboard of your wizard top left. replacing one is risky, as the heat from a conventional soldering gun may damage components - it's something i'd advise just living with.
Click to expand...
Click to collapse
I can not live with it, used to swap batteries very often.
Can anybody suggest proper soldering tool and web shop where to buy such tool and capacitor.
I plan to open housing anyway because I want to replace housing for new.
RTC battery
landwomble said:
there's a "gold cap" small capacitor surface-mounted to the motherboard of your wizard top left. replacing one is risky, as the heat from a conventional soldering gun may damage components - it's something i'd advise just living with.
Click to expand...
Click to collapse
I can not live with it, used to swap batteries very often.
Can anybody suggest proper soldering tool and web shop where to buy such tool and capacitor.
I plan to open housing anyway because I want to replace housing for new.
Backup Battery in Wizard plus other devices
... my first post ... yes I'm a noob.
Answering to something that may be a little dated, but hopefully it will come in handy for someone.
Regarding the small backup battery in Wizard (plus likely other devices). This is indeed a small battery, and not a (gold cap) capacitor as suggested in literature/previous posts.
My device too suffered this loss in time with replacement of main battery.
I sourced the battery on line (only place I found it was at DigiKey). They were $2.75/ea. plus handling fee ($6.50) plus delivery ($8.00) and of course let's not forget those taxes.
http://dkc3.digikey.com/PDF/C081/P2214.pdf (- see Figure 1 on pdf)
It is a magnesium lithium ion rechargeable (Panasonic ML414RM/F9A - DigiKey P003CT-ND). I ordered 4 on-line (I have more than one Wizard, both suffering from the same plague - one is the one I do all the fun hacking on, and keep/use one as my main workhorse. What's fun is one is G3 and the other G4 so any ROM cooking I have tried Main OS and Extended, I can validate on both types ... sorry ... back to the battery)...
I replaced the one battery to test and it worked. It now works fine and retains the time/date settings.
Now the nore technical stuff. How was it determined that it was indeed a battery and not a capacitor. Well first of all looking at it (I work a lot with electronics). Secondly, after removing I measured a small voltage on the battery. I shorted the two leads, and measured again. The voltage began to rise again. If it were a capcitor, shorting the ends would eliminate any charge and that would be it. Being as it is a battery, it revives and returns to the pre-shorted voltage again (a capacitor would not do this).
Check your device and check the battery (if possible) before trying yourself. As I mentioned I do a lot with electronics and so I feel comfortable doing this.
For those who may want to attempt themself, a fine tipped electronics soldering iron can be used (from a Radio Shack or Source or any electronics hobby shop). Get low melting temperature solder (avoid the silver solders as these have higher melting points - don't want to cook the battery). Tin the battery leads before soldering to the board. Clean and re-tin the board itself. Avoid heating/over heating the battery too long as this will "cook" the electrolyte and dramatically shorten the battery life if not destry it. Very little on the board around this battery so less likely to do any damage to the board. If you do try .... GOOD LUCK
no one uses a capacitor for saving data(even time and date) except for desktop RAM but that's just cause it gets powered up all the time by the PS.
of course a capacitor is used for short-time memory.. but it's not more than 2-3 minutes. the only way you'd be able to keep it for a long term is to have a XuF capacitor with a small battery..
these batteries are known to die frequently due to voltage shocks and extra current. the phone itself has a safety mechanism in which if you connect it to different voltage sources, as long as they're in a thin range of voltages, will manage to charge.. but some of the inner mechanisms (such as that capacitor).. are burnt during charging.
Nandaly said:
... my first post ... yes I'm a noob.
Answering to something that may be a little dated, but hopefully it will come in handy for someone.
Regarding the small backup battery in Wizard (plus likely other devices). This is indeed a small battery, and not a (gold cap) capacitor as suggested in literature/previous posts.
My device too suffered this loss in time with replacement of main battery.
I sourced the battery on line (only place I found it was at DigiKey). They were $2.75/ea. plus handling fee ($6.50) plus delivery ($8.00) and of course let's not forget those taxes.
http://dkc3.digikey.com/PDF/C081/P2214.pdf (- see Figure 1 on pdf)
It is a magnesium lithium ion rechargeable (Panasonic ML414RM/F9A - DigiKey P003CT-ND). I ordered 4 on-line (I have more than one Wizard, both suffering from the same plague - one is the one I do all the fun hacking on, and keep/use one as my main workhorse. What's fun is one is G3 and the other G4 so any ROM cooking I have tried Main OS and Extended, I can validate on both types ... sorry ... back to the battery)...
I replaced the one battery to test and it worked. It now works fine and retains the time/date settings.
Now the nore technical stuff. How was it determined that it was indeed a battery and not a capacitor. Well first of all looking at it (I work a lot with electronics). Secondly, after removing I measured a small voltage on the battery. I shorted the two leads, and measured again. The voltage began to rise again. If it were a capcitor, shorting the ends would eliminate any charge and that would be it. Being as it is a battery, it revives and returns to the pre-shorted voltage again (a capacitor would not do this).
Check your device and check the battery (if possible) before trying yourself. As I mentioned I do a lot with electronics and so I feel comfortable doing this.
For those who may want to attempt themself, a fine tipped electronics soldering iron can be used (from a Radio Shack or Source or any electronics hobby shop). Get low melting temperature solder (avoid the silver solders as these have higher melting points - don't want to cook the battery). Tin the battery leads before soldering to the board. Clean and re-tin the board itself. Avoid heating/over heating the battery too long as this will "cook" the electrolyte and dramatically shorten the battery life if not destry it. Very little on the board around this battery so less likely to do any damage to the board. If you do try .... GOOD LUCK
Click to expand...
Click to collapse
The service manual speaks about a GoldCap 0,07F, 70Ohm, 3,3V (which isn't a normal capacitor) but mine looked like a small battery.
Mine was looking green because of some oxide on it. (caused by rainy jackets I thihk)
Is it really possible that the service manual is wrong? I thought there are also rechargable button cells...do you know for sure a regular lithium cell is ok?
(oh, my device is a prophet)
THIS IS A HIGH CAPACITY CAPACITOR also called super capacitor.
looking at what is printed GoldCap 0,07F, 70Ohm, 3,3V
F=Farad (capacitance values are normally specified in nano, micro, milli farads etc
I tried soldering on a broken USB connector in a wizard once but messed it all up, it seems they use some RoHS tin which makes it very difficult to make clean connections.
No! Not A Capacitor! Yes A Battery!
Folks,
This is indeed a battery in the HTC Wizard and NOT A CAPACITOR. A 0.07F capacitor would be physically several times larger than the phone itself.
So regardless of what is "printed" in the service manual, this is a small magnesium lithium ion rechargeable battery.
I have changed on 2 HTC Wizards (branded ATT Cingular 8125).
What I took out was exact identical to what I purchsed from Digikey (on-line as posted in my earlier comment)(and yes, the soldering is/was a tad bit difficult - if you do not know what you are doing).
Signed (Nandaly), B.A.Sc., P.Eng.

Looking for a spare battery charger

I have had 5 different "cradle" chargers that have failed.
I don't need one that charges the phone or uses as a sync charger.
I just want a standalone separate battery charger. I'd prefer if it plugged directly into the wall instead of via a cable but either works ok I guess
why not have a look on ebay?
J
Can those found on Ebay be considered reliable? I was hoping that maybe someone has already purchased something similar for the Kaiser and wouldn't mind sharing their thoughts and opinions. I would love to have a cradle for my Tilts so I can charge them and their extra battery. However, a simple battery charger would be nice as well.
I bought this cradle and I'm very happy. Working excellent.
HTC also has a cradle/charger, and though it looks much nicer and taking less space, the price is exaggerated.
There is a a battery charger as a stand alone. From the picture the battery is definitely not genuine, but the price worth it even if you'll throw the battery away. I don't know about the reliability of this seller/product though.
I bought this http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230228595112 did not receive it yet but looks like what I want. Even though it is only USB but I think I can hook it with a USB wall charger that will also charge it direct
Here's one from Sedio with flip-out AC prongs;
http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=948
NetSkipper said:
There is a a battery charger as a stand alone. From the picture the battery is definitely not genuine, but the price worth it even if you'll throw the battery away. I don't know about the reliability of this seller/product though.
Click to expand...
Click to collapse
I bought one from ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=250215286540&ssPageName=STRK:MEWA:IT&ih=015
It was very inexpensive, has flip-out ac prongs, and works great. It arrived in about 10 days from HK.
NetSkipper said:
I bought this cradle and I'm very happy. Working excellent.
Do you know if this cradle can charge the extended battery (the one that is 3000mah)? I asked the ebay seller that you reference the same question and he said that he thinks it can, but he was not sure.
Thanks,
K Crumbley
Click to expand...
Click to collapse
kcrumbley, sorry, I don't have the 3000mAh battery so I can't help you.
I bought a 2 pack of these chargers on Woot a while back. They have worked great for me charging spare batteries. Haven't seen them for sale anywhere else (not that I have looked too hard). Highly recommend them if you can find them.
http://www.woot.com/Blog/BlogEntry.aspx?BlogEntryId=2885
NetSkipper said:
I bought this cradle and I'm very happy. Working excellent.
Click to expand...
Click to collapse
And then:
kcrumbley said:
Do you know if this cradle can charge the extended battery (the one that is 3000mah)? I asked the ebay seller that you reference the same question and he said that he thinks it can, but he was not sure.
Thanks,
K Crumbley
Click to expand...
Click to collapse
I have one of those cradles as well and aside from having to do a little 'pin tweaking' with a pair of needle nose pliers (to get the cradle pins to line up with the battery contacts) it works fine. I bought it as a bundle with a spare 1350 mAh battery as well but since the larger capacity batteries still have the same contacts and basic sizes apart from thickness (after all they do fit in the same phone as a standard thickness battery) the higher capacity battery should fit fine. It'll just take longer to charge.
I purchased the Seido charger and it did not work, nor did the replacement they sent. The problem with the design is that it is a universal charger that has inserts for different batteries. Unfortunately the tolerances are not tight and the insert has trouble making contact with the main charger.
http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=948

I killed my phone's usb connector. HELP!!!

Hi!
I made big big big mistake. I thought I am able to make the inductive mod and solder it directly to the usb connector of the phone. Big fail! Dumb me...
First everything was working but then I wanted more and tried to resolder the new cable to the very small VCC pin of the usb connector. Puff and nearly the complete pad for USB VCC disappeared :-(. Seems I soldered to hot or to long.
I now have a phone which I can't charge any more. Right now I'm on 30% battery so I don't have much time...
I think there are some possibilities:
1st:
Find out where the USB VCC pin goes and solder a cable from there. Right now I had no luck and I can't measure with a ohm-meter to find an other pad with the same net. I also have no board layout from the pcb. Maybe someone of you can help with measuring or pcb data?
2nd:
I find a temporary solution by charging the battery (i have to of them) manual with a lab power supply and some resistor? Does anybody know the max ampere load for the battery of the SGS? Any ideas for charging voltage and series-resistor value?
3rd:
Is there a way to get a working main pcb for the GT-I9000? Maybe from a phone with a defect display? This shouldn't cost too much since I am also thinking about a new model.
4th:
Will it blend? Kaboom? Burn baby burn? ...
Hope I can get help with this!
Well you need a hardware engineer to answer you and here youll rarely find one.
hit thankxx if i helped. sent from my mind through telepathy (ya its possible)!
Purchase another battery (have at least 2) and an external battery charger.
upichie said:
Purchase another battery (have at least 2) and an external battery charger.
Click to expand...
Click to collapse
I already have 2 batteries. Where do I get such a "external battery charger"? Most of them seems to use usb connectors and this is broken on my phone.
Search for it on ebay and if ypu cant find one search for it on google.
hit thankxx if i helped. sent from my mind through telepathy (ya its possible)!
BHuvan goyal said:
Search for it on ebay and if ypu cant find one search for it on google.
Click to expand...
Click to collapse
For example, one of these.
(Note: I merely searched "i9000 battery charger" and sorted by price. I in no way recommend, have tested, or endorse the usefulness of the previously linked to product.) ...
fpdragon said:
...
2nd:
I find a temporary solution by charging the battery (i have to of them) manual with a lab power supply and some resistor? Does anybody know the max ampere load for the battery of the SGS? Any ideas for charging voltage and series-resistor value?
...
Click to expand...
Click to collapse
it is dangerous but possible:
use a precision voltage source of
4.195 V +- 10mV
and a series resistor of 2.2Ohm, 1%, 1/2W
if your batt is down to 3.3V it will start charging with about 400mA and goes up to 4.195 V ( will need several hours, you can charge it over night)
never charge to a voltage above 4.210V !!! your LiIon batt will die !!!
best solution is: go and buy an external charger with a battery (approx. 12-19€ with shipping) on ebay
look for a polarcell 1800mAh batt, like this one
http://goo.gl/Cun7U
it's worth the money, i've bought one and use it since two weeks and am very pleased with it.
But be careful, there are some other batterys from hongkong, which also claim 1800mAh, but they don't have it, i had one too and it measured only 1300mAh.
tiwag said:
it is dangerous but possible:
use a precision voltage source of
4.195 V +- 10mV
and a series resistor of 2.2Ohm, 1%, 1/2W
if your batt is down to 3.3V it will start charging with about 400mA and goes up to 4.195 V ( will need several hours, you can charge it over night)
never charge to a voltage above 4.210V !!! your LiIon batt will die !!!
best solution is: go and buy an external charger with a battery (approx. 12-19€ with shipping) on ebay
look for a polarcell 1800mAh batt, like this one
http://goo.gl/Cun7U
it's worth the money, i've bought one and use it since two weeks and am very pleased with it.
But be careful, there are some other batterys from hongkong, which also claim 1800mAh, but they don't have it, i had one too and it measured only 1300mAh.
Click to expand...
Click to collapse
thanks for the detailed infos.
I already have one of these 1800mAh batteries and my subjective impression was good. The second battery I have is the original one.
I will buy one of these charging adapters. Until it is coming I was thinking about using a labratory power supply with your mentioned 2,2Ohm Resistor and with a Ampere limitation of 400mA. Should be no risk, isn't it? Then slowly rise the voltage until I get the current of about 300mA.
The thing is... I have no spare phone and I really would need it on Monday.
I configured the power supply to 4,21V at 400mA max (current delimiter).
It startet at about 4V and I had a constant 400mA load. After about one hour the current delimiter switched off and I now have stable 4,21V. The current lowers slowly.
I think this should be a save charging procedure?

XDA Exec battery connections for adapting different packs

Hi everybody.
I came here hoping to find sources for replacement batteries as both my XDA Execs are now unable to stay on for more than a few minutes. But from another thread I see that these batteries were last heard of back in 2019.
So, in an attempt to try and adapt currently available batteries to fit, I need to find out what the function of the two inner contacts on the XDA Exec are for.
The two outer ones are easily identifiable as +Ve and -Ve and -Ve, but I am stumped as to the inner ones. Is one for a thermistor? One for a charge sense?
Any help either regarding what these pins do or other workarounds gratefully received.
That's going to be a tricky one to source more batteries. Maybe get the dimensions of it, and look around for a similar (slightly smaller) one that can fit inside. You could solder wires between a smaller battery to the phone battery terminals perhaps.
I believe the outside pins are +ve and -ve. The inner ones are battery status indicator, and battery temp. not sure which is which o that particular device.
EDIT: This thread should help with which pin is which
Possible battery solution (fix)
Fellow universal users who suffer from battery problems, i know this issue is reccuring and is in many threads and forums now. However i am sorry to increase the talk in another thread. I just thought i would share my peice of advice. Attached...
forum.xda-developers.com
the_scotsman said:
Maybe get the dimensions of it, and look around for a similar (slightly smaller) one that can fit inside. You could solder wires between a smaller battery to the phone battery terminals perhaps.
Click to expand...
Click to collapse
Thanks, I have already started looking at other batteries, the XDA Exec is one of the largest so getting one of lesser dimensions is actually quite easy, but knowing the pinouts of both the Exec and the newer battery is going to be critical.
As far as soldering wires goes, I would be more inclined to try opening up the old battery and soldering new Lion or LiPo cells inside.
Thanks for the link to the other thread, it does indeed suggest the battery sense is adjacent to the -Ve, and therefore the Thermistor lead will be adjacent to the +ve.
No worries. Yea, that would be the best option, replacing cells inside. That's not for everyone though. A bit of skill is involved, which is why I didn't suggest it. But you obviously know enough in this area, so definitely go that way for sure
Did you get anywhere with this? I'd like to power up my Exec as well, but can't without a battery.

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