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just pick a bargin s/h laptop for myself but it need a new battery.
where should i go? ebay?

Best price I got was from a place called "Aussie Batteries" on Ebay, run by a chinese guy Quick service and cheap

thanks Glen, how well does the battery perform? better/ worse same?

Redline,

I had a couple of HP laptop batteries done a few years ago. Performance was definitely better. I did a third one myself (not hard) with high capacity cells that I bought. All that is required is a functional circuit inside the battery.

Cheers

do you really save alot of money buliding the battery yourself? whereabout are theses cells purchased Mattc?.
i not even total sure about the current one in the laptop, if i remove the ac it goes straight into hibr mode but it looks like the battery is full charged? i guess a new battery might sort out my problems.
i guess i could pull the current one apart and put cells into it righht??

redline,
What brand/ model of the lappy?

i think its a compaq presario 1700

Redline, seems to work well, the comparison was hard from my memory of the original 5 years ago versus a new one today, so cant really compare to an original. They were about $135, original Toshiba was about $285

redline wrote:i think its a compaq presario 1700

I might check for you with my disti.
Are you sure that model? perhaps email me the complete model number of the lappy.

redline wrote:do you really save alot of money buliding the battery yourself? whereabout are theses cells purchased Mattc?.
i not even total sure about the current one in the laptop, if i remove the ac it goes straight into hibr mode but it looks like the battery is full charged? i guess a new battery might sort out my problems.
i guess i could pull the current one apart and put cells into it righht??

Savings? Not a huge amount. It would be easier to see what Birddog has to offer
The cells that I used were ordered from the USA with an order for a large amount of NIMH. I was building some remote irrigation monitoring stations at the time - before they became mainstream and still cost a fortune. Buggered if I can find a link - but there are plenty of other suppliers in AU.
The actual mechanics of rebuilding one is simple, but you need to be certain that the packs board is functional otherwise you have wasted your money. I had five dead battery packs to play with and I was bored. My previous comments were not really intended to suggest trying it for yourself but if you are up for it....

Here is a tutorial on the subject.
http://www.electronics-lab.com/articles ... construct/

Cheers

I've also seen fairly cheap universal laptop batteries on Ebay, always coming from China. One such battery was supposed to last over 10 hours (!) but I wouldn't buy one before getting some positive feedback about it. Has anyone had the opportunity to try them?

Link.

My wife got it off eBay for her Compaq. HP quoted a rediculous price x 3 the eBay one. The shop on eBay was oz_battery

Alex