i need to know if there is a way to reload the nimh battery
when i reload the phone only the lI-ion Battery fill and the nimh
whats the wy to reload this battery?
Related
i have noticed that the battery metter is completely unreliable
for example it shows 28% left (btw, i installed FInixNOverBattery for percentage indication) and after a soft reset it shows 41%
or it shows 50% and after soft reset it shows 31%
in this way i can never estimate how long the battery will last
does anybody faced this issue? any solution fot it? (i also tryed to calibrate by completely drain the battery followed by complete charge withe the device turned off)
thank you in advance!
noris08,
it is completey normal to experience big jumps in % after a reboot. The battery % is just a representation of the actual voltage of the LiPoly battery, which usually recovers (rises) quite a bit when there is no load on the battery (even for a short time).
maybe what you say it is true, but i never experienced this behaviour with any of my previous phones. and i had a few, including wm for a few years
and variations of 10-15% - i find them too big
I noticed the same thing. Any explanation for this? Or it is just that FInixNOverBattery is not reliable/compatible/accurate ?
Voltage may vary/jump around due to environmental changes and power consumption or voltage sensor may be insufficiently accurate to provide reliable voltage readings for 1% steps. This is one of the reasons why many battery drivers in WM only provide remaining charge percentage in 10% steps.
In this light, voltage on its own is not a sufficient indicator of remaining charge percentage. Other parameters, such as voltage deviation and other factors, such as power consumption and temperature may need to be taken into account to obtain a more accurate evaluation.
http://forum.cyanogenmod.com/index.php?/topic/2354-request-seidio-extended-battery-level-fix/
The state-of-charge of all non-oem batteries are registered incorrectly, resulting in soft shut-downs when the android os assumes the battery state-of-charge to be low, when in fact it is not.
By some educated guesswork, it is assumed that the moto droid uses a hall effect sensor to detect current, and then integrates to find the current state-of-charge. This calculation requires a calibration, which is obviously set for the stock battery.
Is it possible to find where this calibration value is, and change it manually, to allow the droid to register the correct state-of-charge for extended life batteries?
Is the following of any relevance? AmonRa's series of Recovery Roms include the option: Wipe the battery stats in /data. This post claims: It's thought that if you fully charge, delete the battery data file, use your phone completely, recharge fully that your phone's battery stats are changed and helps battery life.
I have allready read:
Battery recalibration (Thanks to Cyanogen for this and to fachadick for bringing it to my attention).
If you're experiencing higher than normal battery drain, try the following:
1. Charge the phone to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings -> About Phone -> Status -> Battery Level = Full.)
2. Boot to recovery and wipe battery stats.
(To have the most accurate of battery stats, reboot the phone immediately after wiping the battery stats and wait for your ROM to boot completely to the desktop. Once your entire boot is done and you have full access to the phone, go ahead and pull the charger and continue.)
3. Do not charge the phone until after draining the battery completely, resulting in it automatically shutting off. Take out the battery, and keep trying to turn on your phone until it will not turn back on at all.
4. Recharge the phone completely and then use as you normally would.
This is a method that has been proven to work, I am sure there are other ways. My battery lasts longer after doing this and the reading is much more accurate. It might be advisable to do this after every ROM install if you want the most battery life and most accurate battery reading by the phone's software.
Click to expand...
Click to collapse
My question is dose the phone need to be off or on for stage 4 the recharging of the battery?
If it can be off for stage 4. Dose it need to be charged in one sitting or can I charge it partially then take it to work and then charge it the rest of the way before I turn the phone back on?
This my second attempt at doing a battery stats wipe. The first time I tried I left the phone on wile charging and the battery only charged to 3800mV calming it was at 100%. I had to bump charge it 3 times over 3 hours before the battery was up to 4100mV-4200mV and clmaing 100% charge capacity.
Evo 4g Ur3 Stock root Seidio 3500mAh extended life battery.
1) You can have it on
2) NO! charge it from 0-100% in one sitting
I did it according to the above with my 1&2 and im getting accurate readings now as well as the battery life i should have.
Eat it iPhone said:
1) You can have it on
2) NO! charge it from 0-100% in one sitting
I did it according to the above with my 1&2 and im getting accurate readings now as well as the battery life i should have.
Click to expand...
Click to collapse
I wonder if this means that I will not be able to have proper battery stats as my phone likes to stop charging and claim that it's at 100% when its actually at 50-80%/ (It dose this 95% of the time... It even did it with the stock battery stock battery a couple of times)
This video : http://www.youtube.com/watch?v=DqdHFmKq57c
Says if you drain your htc hd 2 battery full out. And then charge it full. It will work longer.
Is this right? And some pp says its bad for your battery.
106 views... no replies ;(
well.. the idea originated from laptop battery tricks and some facts about the technical side of the problem.
If i try to simply put it, a laptop battery contains (beside the actual battery) a small pcb that has a charge/discharge controller and a eeprom memory chip (among others). The point of having these is also pretty simple. The battery actively communicates with the laptop via a i2c interface, so that the laptop always knows the state of the plugged in battery. The laptop itself can't measure the current or voltage of the battery and doesn't know it's capacity or composition. Instead the chips inside the battery does all this work and reports it to the laptop. That's how the laptop knows when you plug a different capacity battery or other things. The percentage of power remaining is measured by the chip inside the battery and stored in a volatile memory also contained on the small pcm inside. This memory can be accesed by the laptop and from there, it will display you the remaining power left (in percents %). This is updated as long as there is any notable difference from what the chip measures from the battery cells and what was the last measurement made. So.. what would happen if you would charge the battery to 100% full, then disassemble it, remove the 100% charged cells and replace them with 50% charged ones.
When you would start the laptop next time, it will STILL display 100% charge, the last measurement, and will assume this state is valid for the cells. When the physical batteries will drop the charge level with 1% the laptop would display 99%. So around 50% displayed the batteries will actually be empty. When you charge them back, the laptop would start from 50% and go back to 100%. The actual batteries would get only 50% energy, so they won't get fully charged, therefore you get less battery life.
Of course, this is a very exagerated scenario, but in practice, sometimes small errors can occur, when the physical level of the batteries is a bit different to what the battery controller recorded. In this case, a full discharge then recharge can help to correct this issues (but only if you're talking about couple percents - not more).
But... when we're talking about phones, things are quite different. The communication algorithm between the battery and phone is more simpler and the battery itself doesn't know it's charge state. The phone will actively probe the battery in order to update it's status. So, if i remove the battery and drain it somehow, the phone will display it's correct physical charge next time i plug it in. This is possible because a phone battery and the phone itself is simpler by design then a laptop for example.
So why laptops used such complicated charge algorithms? Mainly because 2 reasons. One because laptop batteries are dangerous things. If improperly charged or damaged they CAN explode. If the cells are damaged, overcharged or the temperature is high, the controller chip will change the state of the eeprom memory so that the laptop and it's OS to see that the battery was damaged/empty and shutdown at once. The other reasons is quite commercial based. The charge controller counts each charge cycle and stores it in that eeprom memory. So if the manufacturer specified a specific number for the charge cycles, when this number is reached, the controller will simply rewrite the eeprom and state that the battery is "dead". So.. go get a new one.
I disassembled many batteries and among "dead" ones, i found many cases where the cells were actually in pretty good shape and functional. I measured cells with more then half the original design capacity still available, but the battery pack was reported as being "dead".
So back to hd2. As i've stated, phones use simpler charge/discharge algorithms. The better part is that they are more simplistic and efficient at measuring the actual physical state of the battery. So, a calibration isn't required like on some laptops.
However, sometimes is good to have a full discharge/recharge cycle. This being because of the chemistry of such a battery. It won't do miracles, it won't make the battery last longer on a charge but it could prolong overall battery life. Lithium is a very reactive element, a deep discharge about once a month will help reduce the effects of naturally occuring oxidation of such materials in an electrolytic compound.
Hi everyone!
Wondering if there is or are anyway to calibrate Omnia battery? I think it is draining too fast, first i left my phone charging for 5hours to completely charge and just send 1 message and download Samsung App "Now" and in 1 hour since has now 92% of it. I use brightness in minimun, use Edge connection and nothing more to spend so much...in moment im using "mirolg" mi7ROM mango 8107 DFT, great by the way!
Any ideas?
Thanks!
after each ROM flash i recommand the battery dicarger tool from MS Market Place.
really it works, really! It allow the battery circuitry to calibrate to the right energy level.
After flash a ROM, I let the battery completly discharging and then I charge my device for minimum 8 hours. then on 30% battery level I repeat this process. my battery has 40 - 50% longer life with the same usage.
"Even though lithium batteries don't have the memory effect issue, they still have a phenomenon called state-of-charge (SOC) mismatch. Battery Discharger employs various hardware resources available on the phone to discharge the battery power at a faster but controlled rate. Charging the phone completely from this state would allow the microprocessors on the battery circuitry to recalibrate and start reporting accurate energy levels.
Battery Discharger is a smart app that lets you discharge the battery of your phone at various discharge rates in a controlled manner. User can configure Battery Discharger app to use one or more of the following hardware resources to achieve the optimum discharge rate"
Thanks for your suggestion, miro!
I tested the application you mention and it works really well.
First thx miro for a great rom, this tip gives me 4 Hours more power !!!