battery epprom?

greetings

i have a lg e500 with ms-1637 battery

I was quite happy with the battery life of it, it would last for 2,5hrs (quite good for a 2 year old battery) the thing is that from one moment to another it started lasting only 30 min, i did search on the Internet and saw that this might be due eeprom chip, how do i reset the chip? which chip does my battery has?

Ps: on gnome power manager the battery status was like 88% usable now it states 37%...

edit: it's getting lower each recharge cycle

 

That's just how batteries are, they can be fine one minute, bad the next. That's the unfortunate truth with Li-Ion Batteries. Though it still could be the Eeprom Chip, but I'm no good there as I have no clue what it is, ha.

 

It's not the chip at fault.

You can flash the EEPROM but your batteries wont be any better.

Also to flash the EEPROM you need to take the battery apart.
Not a good idea. Unless you decide to buy new cell to replace the old ones.

 

is that normal be soo good at one minute and the next so bad? it's getting lower every recharge cycle =?

i found software for flashing eeprom chip without having to take the battery apart but i don't know which chip does this battery has...

any other ideias to make at least it stop getting lower and lower capacity each recharge cycle?

 

As I said, It's just how these batteries are, you can't just make it stop getting lower, it is getting on two years remember... Buy a new battery, they aren't that expensive, are they? Judging that you are in the U.S, Batteries are about $50 on eBay.

 

I'd just say to forget all that and order another battery. Happened to me on my Toshiba. Went from steadily over 2 hours for several months, then all of a sudden down to a half hour in no time flat.

 

so it's just normal

let's spend some bucks on a new one

you can close the thread thanks to all that replied

 

Nah, we'll leave it open in case anyone else wants to reply or has the same problem.

 

The first part of your statement is wrong, but the rest is right.

All batteries have a microcontroller/EEPROM inside of them. When the batteries are assembled, the cells are shut down, via the controller, so the battery can be constructed in a safe manner. When the battery is complete, you can hotflash two of the jump points inside of the battery, or recode the microcontroller to enable current/voltage flow through a battery.
Inside of the battery you will see two probes, they look like the temperature probes on some heatsinks, however dont be fooled, one is a voltage cutoff probe and the other is a current cutoff probe. They are installed as such so that the battery doesnt overheat in the process of charging.

You can revive batteries, since some are coded to basically die. The battery in my E1505 lasted 4-6 minutes. After resetting itself, I get a good 45 minutes of battery life which is what I normally get.
You can pinpoint the problem whether it is a cell gone bad or a chip defect by the rate at which the battery dies. If the battery all of a sudden drops life like a brick falling from a building, than a cell has gone bad. The "wear" which a battery gets over time is normal, however when it starts happening at an enhanced rate, we can confirm that the manufacturer of the battery has coded the battery as such so that it dies prematurely. Dell is a big culprit of that.

K-TRON

 

that's exactly what happend to me, how can i reset/flash the chip can some one point me?

 

You will need to dismantle the battery to find that out.
I only recommend doing so when you know that the battery is properly drained.
Batteries are generally hard to dismantle since the manufacturers do not want people to dismantle them. They are usually two plastic halves heated together. You can sometimes get them open witha good X-acto or a set of small flat head screwdrivers.
You will find a small circuit board inside. There are test points on the actual PCB. While the battery is open, you can individually test the cells. Resetting a battery is tricky, since every make is different. It is hard to explain on here without seeing a picture. If you find an electrical engineer, they can tell you what everything on the PCB does, and which parts you need to find the spec sheet of to reset.

K-TRON

 

thanks will try that one out

i found what migth have cause the problem

http://blogs.msdn.com/e7/archive/2010/02/08/windows-7-battery-notification-messages.aspx

 

ok i've dismantle the battery, now what do i have to do?

circuit board images:

http://img519.imageshack.us/i/dscf2440.jpg/

http://img411.imageshack.us/i/dscf2439.jpg/