How to get full potential out of your extended batteries!!!

[squick]

I have the seidio 3500 mah and love, especially after I found out how to manage it properly. Couple tricks with these larger batteries are as follows. This should work with all larger batteries.

1. When the charging light turns green, the battery is only at 1500. Keep on charge for about 3 hours longer or more to get full charges.

2. Wipe battery stats. Recovery, advanced, wipe battery stats. When you hit go, screen will go black for about 30 seconds. It's o.k. it's doing the wipe.

3.Condition the battery. Charge all the way, let run down completely till phone dies. Then charge all the way again. Do this bout 3 times. Should condition about 0nce a month to prolong battery life.

Follow these steps and you will love your big battery. I love mine. My Seidio runs bout a day and a half and I am constantly doing stuff with the phone. ENJOY!!!!

 

[DayoDee]

Ok are you using juice defender for it or any application that save battery life

Sent from my PC36100 using XDA App

 

[squick]

Nope, I only use task killers that can auto kill when screen turns off. Also, Itry to leave GPS turned off unless I need to turn it on. I just do as I posted origanally and it works great. I do keep my origal batt and back door available so when the batt gets low I can just run it completely dead. Oh yeah, I also have a spare batt charger the just charges the batt by itself.

 

[kse91holydiver]

Nope, I only use task killers that can auto kill when screen turns off. Also, Itry to leave GPS turned off unless I need to turn it on. I just do as I posted origanally and it works great. I do keep my origal batt and back door available so when the batt gets low I can just run it completely dead. Oh yeah, I also have a spare batt charger the just charges the batt by itself.

Don't do it!!!! Task killers are horrible for any phones running FroYo.

 

[squick]

How come? It has never seemed to effect it.

 

[phatmanxxl]

Don't do it!!!! Task killers are horrible for any phones running FroYo.

Some apps hang so it helps to use a task killer, I exclude the apps that usually start in their own. I also noticed after I close everything after a reboot, the phone runs much smoother with just the necessary apps running.

 

[nabbed]

1. When the charging light turns green, the battery is only at 1500. Keep on charge for about 3 hours longer or more to get full charges.

That makes no sense. When the light is green, the battery is at 4.15-4.2 V, and it's no longer charged at this point.

 

[DirtyShroomz]

Task killer should only be used if an app hangs, not set to automatic kill, android does this on it's own. GPS only turns on when an app needs it so turning it off does nothing. I get a full day and a half on a standard battery with Wifi on, GPS on and juice defender set to every 15 minutes which I'm now turning off due to facebook app and push notifications.

Sent from my PC36100 using XDA App

 

[jpatterson350]

Task killer should only be used if an app hangs, not set to automatic kill, android does this on it's own. GPS only turns on when an app needs it so turning it off does nothing. I get a full day and a half on a standard battery with Wifi on, GPS on and juice defender set to every 15 minutes which I'm now turning off due to facebook app and push notifications.

Sent from my PC36100 using XDA App

So you can leave GPS on and its not killing the bat unless your running a gps intensive app? I had no idea....

Thanks
JP

 

[squick]

That makes no sense. When the light is green, the battery is at 4.15-4.2 V, and it's no longer charged at this point.

The voltage isn't the the same as amps. When the batt is at 1500 it still has the proper voltage to run the phone but the cells are not full. The EVO is set to turn the light green when the batt is at 1500. I found this to be true cause when I first got the batt I would charge till it turned green then off I went. I wasn't getting any better batt life until I found info on how to properly charge these batts. Now I get bout a day and a half.

 

[sweteg]

Squick is right. Let it charge for another few hours after it goes green for the extended battery from Seidio. If you unplug it right after it hits 100, it'll drop to 75 pretty quick. So let it keep charging.

 

[nabbed]

The voltage isn't the the same as amps. When the batt is at 1500 it still has the proper voltage to run the phone but the cells are not full. The EVO is set to turn the light green when the batt is at 1500. I found this to be true cause when I first got the batt I would charge till it turned green then off I went. I wasn't getting any better batt life until I found info on how to properly charge these batts. Now I get bout a day and a half.

The charging circuit has no way of the determining the charge capacity. The only property that can be measured is the voltage, and consequently the rate at which voltage is changing and the current during charging.

If the charging circuit relied on capacity, you'd never be able to charge past 1500mah.

The basic process is to charge at constant current until each cell reaches 4.2 V; the charger must then gradually reduce the charge current while holding the cell voltage at 4.2 V until the charge current has dropped to a small percentage of the initial charge rate, at which point the battery is considered 100% charged. Some manufacturers specify 2%, others 3%, but other values are also possible.

http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery#Charging

 

[squick]

The charging circuit has no way of the determining the charge capacity. The only property that can be measured is the voltage and the rate at which voltage is changing during charging.

After all that I have read and personally tested, the battery is not fully charged when the light turns green. I have taken the phone off charge once the light turned green and the battery lasted no longer than a 1500. I found numerous threads that stated that the evo goes green once the battery reaches the 1500 point and that you need to charge well past the green full light. Once I started letting it charge at least 3 hours over, I get awesome battery life. If there is another explaination for this I would love to know!

 

[nabbed]

After all that I have read and personally tested, the battery is not fully charged when the light turns green. I have taken the phone off charge once the light turned green and the battery lasted no longer than a 1500. I found numerous threads that stated that the evo goes green once the battery reaches the 1500 point and that you need to charge well past the green full light. Once I started letting it charge at least 3 hours over, I get awesome battery life. If there is another explaination for this I would love to know!

Try this:
1) Charge the phone till the light goes green.
2) Power off the phone completely (shut down).
3) Charge more with the phone being off until the light goes green again.

I'm guessing the extended battery like 3500mAh should be nearly fully charged at this point, and it shouldn't take more than 30-45 minutes for the second charge, as opposed to 3 hours.

The reason for this behavior, and I'm guesstimating here, is that HTC optimizes charging in the kernel to never exceed a certain limit, which is very close to 90-95% charge. A double capacity battery, having a different charging rate and the limit current, should be at 80-90% - double the difference - when charged with the phone on. Eliminating this optimization from HTC by charging with the phone off should, in principle, allow faster charging to nearly 100%.

 

[PGRtoo]

3.Condition the battery. Charge all the way, let run down completely till phone dies. Then charge all the way again. Do this bout 3 times. Should condition about 0nce a month to prolong battery life.

Nonsense! The Evo uses a LiPo battery and there is no beneficial reason whatsoever to running the battery down. In fact, running the battery down unnecessarily will reduce the cycle life and the calendar life. In the simplest of terms, the LiPo cell chemistry is only capable of so many charge-discharge cycles before it loses significant ability to store energy and unnecessary cycles just use 'em up unnecessarily.

In fact, a bunch of partial charge-discharge cycles are a lot easier on LiPo cells than a few full charge-discharge cycles. In other words, your battery will remain healthy a lot longer if you charge it whenever you can instead of waiting until you have to all the time.

Pete

 

[nabbed]

Nonsense! The Evo uses a LiPo battery and there is no beneficial reason whatsoever to running the battery down. In fact, running the battery down unnecessarily will reduce the cycle life and the calendar life. In the simplest of terms, the LiPo cell chemistry is only capable of so many charge-discharge cycles before it loses significant ability to store energy and unnecessary cycles just use 'em up unnecessarily.

In fact, a bunch of partial charge-discharge cycles are a lot easier on LiPo cells than a few full charge-discharge cycles. In other words, your battery will remain healthy a lot longer if you charge it whenever you can instead of waiting until you have to all the time.

Pete

Agreed. The only reason to discharge the battery completely might be to reset the battery calibration data and to recalibrate. But I really don't know if that even works.

 

[squick]

Just saw the posts. I did not know that, but the rest still seems to work. If I charge the vary well past the green light, I get almost 2 days of use out of it.

Sent from my PC36100 using XDA App

 

[ms79723]

I need testers for my battery fix that in theory, should charge all batteries (stock and extended) to maximum capacity. So far I tested it with a stock battery and it only lost 4% in an hour after being on the charger for 2 hours. Im testing my extended battery right now(it's only 1800mah).

here's the thread: http://forum.xda-developers.com/showthread.php?t=876590

 

[yang704]

Don't be stupid and fall for this trick. It's only prank in case noobs don't know. A day and a half is normal for 3500MAH battery with full use ( abuse the hell out of it ).

 

[ceg1792]

I think nabbed has got it, your battery loops once it gets to the max the battery can hold. Its megahertz, not amps or volts.. Your phone tries maintaining 100% by letting itself lose power and have to charge back up. Like I said, its a loop pattern.