Accessories Extended Battery

[jiggy79]

I had bought an extended battery from Best Buy, it's pretty much the same one you buy from seidio. Now as of late...the battery is decreasing in its charge. Is this normal? Does this mean I have to shell out another $70 for another one. By the way I've had the best buy extended battery for months now.

James

 

[ambientdroid]

Perhaps try a full discharge followed by a full recharge to reset its internal 'fuel gauge'.

 

[BrianJB]

Perhaps try a full discharge followed by a full recharge to reset its internal 'fuel gauge'.

This actually worked for me with the Seidio 3500mah extended battery. I read different things about letting these batteries drain all the way, but I figured what the heck.

So I let my battery die, then recharged overnight in an external charger. Battery has been awesome since then, I can get 25-30hours from a single charge now.

 

[seidioseidio]

Are you leaving it on the charger for about 2-3 hours after it indicates that it is fully charged?

 

[jiggy79]

Yes I am..usually when I go to bed at night, I put it on the charger and when morning comes..I take it off the charger (from 12am - 8am)and then it begins to decrease in charge quickly. It didn't do that before. I know recently I had put a different kernel on my rom netarchy and then put it back on stock kernel #15, don't know if they had any effect to it.

 

[tube517]

Full discharges are not required. Overcharging the battery can also be bad.

Charging Lithium-ion – Battery University

 

[jiggy79]

It worked..I fully discharged my extended battery until it couldn't come on anymore and now it's currently at 42% going on 22 hours plus.

 

[BrianJB]

Yeah, I know alotta people say not to fully discharge, but it did work for me

 

[cyaiphone]

evo's don't overcharge batteries. They stop charging after the battery hits '100' percent.

 

[Rigmaster]

Hard to fully discharge or overcharge a battery since they have built-in protection to prevent both. Of course, that protection isn't fool-proof, but it's incredibly rare. It would kick in even if Evo didn't have charge management.

 

[tube517]

That's true with the stock batteries or the ones made by the reputable companies. However, with the cheap hong kong batteries on ebay, it's a different story. Just gotta be careful.

Hard to fully discharge or overcharge a battery since they have built-in protection to prevent both. Of course, that protection isn't fool-proof, but it's incredibly rare. It would kick in even if Evo didn't have charge management.

 

[Tyler Perez]

fully charge your battery, once it's charged shut it off... let it charge till green light.. after fully charged turn on then let it fully die.. once it dies, try to turn it back on and let it die again a few times... repeat cycle 2-3 times... if you're a root user, reset battery stats...

i used this battery compared to the one at best buy, which i have as well... works just as well...

HTC Evo 4G extended battery w/ battery door - Black Shipped Free.

 

[Evulution]

fully charge your battery, once it's charged shut it off... let it charge till green light.. after fully charged turn on then let it fully die.. once it dies, try to turn it back on and let it die again a few times... repeat cycle 2-3 times... if you're a root user, reset battery stats...

i used this battery compared to the one at best buy, which i have as well... works just as well...

HTC Evo 4G extended battery w/ battery door - Black Shipped Free.

FAIL FAIL FAIL

We use lithium ion batteries in our laptops. Nobody has to do that with a laptop battery and you don't have to do it with a cell phone battery. Its the same battery. When you first get a phone you are suppose to leave it off and let the lithium ion battery fully charge for 7-8 hours. The LED light may turn green after charging the phone for 20 minutes but the battery isn't full. Its a false indication and you want to initialize the battery. So just let it charge for 7-8 hours. Initializing will tell the "smart battery (lithium ion battery)" what its maximum charging capacity is so the battery can protect itself from overcharging. Lithium ion batteries aren't dumb batteries and this cycling crap is bad for lithium ion batteries.

 

[Tyler Perez]

FAIL FAIL FAIL

We use lithium ion batteries in our laptops. Nobody has to do that with a laptop battery and you don't have to do it with a cell phone battery. Its the same battery. When you first get a phone you are suppose to leave it off and let the lithium ion battery fully charge for 7-8 hours. The LED light may turn green after charging the phone for 20 minutes but the battery isn't full. Its a false indication and you want to initialize the battery. So just let it charge for 7-8 hours. Initializing will tell the "smart battery (lithium ion battery)" what its maximum charging capacity is so the battery can protect itself from overcharging. Lithium ion batteries aren't dumb batteries and this cycling crap is bad for lithium ion batteries.

Well, I'm sorry to inform you I did my research.

Lithium-ion battery - Wikipedia, the free encyclopedia

Please refer to charging procedure 1/2 way down the page.