Advent Laptop 7240 Battery Help

T4i

Morning all,

I've googled this problem but getting nowhere with it, I hope someone on here with laptop experience can help.

I've ben asked by a family member to take a look at her laptop, its a old Advent L7200. The laptop works with the AC adaptor but will not work with just the battery.

The laptop can see there is a battery inserted by flashing the 'recharge' light but I'm thinking the battery won't hold any charge at all. As soon as I take the AC adaptor out the laptop dies. I've tried leaving overnight to charge with no luck.

The battery (advent 7240) is approx £100 to buy, and I refuse to take £100 off her when I don't know for sure it is the battery at fault. On the battery are 5 pins (see pic) and I'm *guessing* 2 pins are for +/- output, 2 pins for +/- input and 1 pin for telling the laptop the battery is connected......

I've got a muli-meter here but because the pins are so tiny the multi-meter probes won't fit inside the terminals. So I've used some tin-foil to make the pins more accessible. As far as I know I've tried testing each pin combination but can't get any kind of output reading.



Can anyone give any advice? Apart from telling me to buy a new laptop??

Have a nice sunny Sunday all!!

Lord_Chris

the battery is dead.

fact is laptop batteries are a disposable product - you MIGHT be able to find a battery cheaper on ebay from Asia somewhere... just make sure you check and actually READ the comments and stuff to check their legit.

T4i

Lord_Chris wrote:

the battery is dead.

fact is laptop batteries are a disposable product - you MIGHT be able to find a battery cheaper on ebay from Asia somewhere... just make sure you check and actually READ the comments and stuff to check their legit.

Cheers Lord_Chris, comments appreciated!

Lord_Chris

no problem

jack_daniels_2

On some laptop batteries they are actually repairable as the battery isnt a battery in the sense of a big lump but cells that fit in a case and on some laptop models the case can be opened and the cells replaced so the cost is lowered as they can be generic cells that are placed within a specific enclosure maybe worth researching into wether that model of battery can be brought back to life with new cells, I once found a website that gave instructions on how to do this but for the life of me I cant remember the link as it was some years ago.

Actually I just found this http://www.fonerbooks.com/laptop_3.htm

T4i

mint!

This is great! Cheers JD