Computers - Rebuild a Computer Battery

Is it ok to have alot more amps than is needed or will that blow up my machine?

I have a 15 year old computer with a dead battery.

battery specs:
12v 2200mAh

I want to replace the inside cyclinders(batteries) with new ones.
I was thinking about just Putting a cylindrical 12v inside it or I could put 10 AA at 1.2vs in it. I was wondering how close the amps had to be and if it would be a problem if the amps were a lot higher.

Welcome to the forums! Computers are very sensitive to the voltage/amperage given them by their batteries and adapters. And don't confuse Amphours and amperage. Save yourself a lot of headaches and time by buying a specified battery, as rebuilding one is not exactly a diy project.

Here's you a how to: Laptop Battery Hack! Don't Buy A New One! - Video (http://www.metacafe.com/watch/479447/laptop_battery_hack_dont_buy_a_new_one/)

So my best bet is to get as closely as possible to the mAh too?

I realize this is not your typical DIY job, but come on I am doing this for a 15year old computer. The company that sells these computers do not sell computers any more and have also stopped supporting it, so buying an official battery is not an option. I am a tinker at heart and want to pimp out this 15 year old computer for sweet giggles. The bad thing is I do not know too much about amperage and amphours and voltage, so that is why I am coming to you guys. It looks like the original Cells were 10 1.2V A batteries. I am thinking of replacing them with 10 1.2v AA batteries at 2600mAh each. My question is because the original battery is suppose to be 2200mAh all together would it be bad for me to put in the AA at 2600 each? Also I am not sure how the mAh works but would that mean that with the AA the mAh would be 26000mAh since each one is 2600 or does it not add up like that and the mAh is always 2600 no matter how many of the batteries you add?

All this information was not available at the onset, and that is why I posted what I did. By all means, if you enjoy tinkering and can come close to the Ah required, use the site Ray mentioned and have at it. Let us know how it goes.

So my best bet is to get as closely as possible to the mAh too?

I realize this is not your typical DIY job, but come on I am doing this for a 15year old computer....

I reread my post and I must apologize, I did not have any intention of making my post sound so hostile towards you at all.

Ampere-hours (or milliampere-hours) is the capacity of the battery bank, think of it as the gallon size of a gasoline tank. The larger the mA-Hr capacity the longer the computer will run before exhausting the battery. You could connect the computer to a car battery and likely run for a couple of days before a recharge was necessary.

I once cobbled a battery from a two-way radio to a laptop computer. It was funky as heck and needed tape to hold the battery in place but the darn thing worked fine.

A car battery you say... I like it. I am going to go out to my car tomorrow and see if I can get it to work. Thank goodness this old computer is the most sophisticated battery. There is a whole - and + hehe.

Go for the gusto, get a size 8D deep-cycle battery. That bad boy will probably run a laptop for a month. Of course you will also need a truck to carry the 160 pound battery!