Now, you all know me. You've all seen me take something and keep at it till it's done.
Be this building something, making something...trying something. And you all know that I can't let go.
In this case, it's building a battery.
My laptop was second hand and dead when I acquired it, and while I've fixed most of it the one thing I can't do anything about is the battery.
Cracks can be glued and held together with plate steel - but a lithium ion battery is another problem. For those that don't know, in ideal conditions a lithium battery decays over time. In use or not, charged or not it still decays.
Stored properly, half charged in a freezer they can last a few years. Constantly charge/discharging in a laptop? At more then ideal, constantly changing temperatures? With trickle charging?
The battery now lasts minutes - maybe 5 on a good day. If I'm running warcraft I don't have enough time to log in.
And I'm sick on it.
So I'm planning on building a battery for the laptop - a one use power pack - with AA batteries.
This is possible because my power supply can take a DC power source in the range of 12-16(ish) volts - intended for use in a cars "12 volt" system. If it works with one use batteries, I can redesign to work with rechargeables...
But the plan. Ten AA batteries in series should provide 15 volts - well in the adapter range. Between them that's about 30 amp hours - because I believe the amp hour rating is cumulative over a battery pack.
So given that the original battery was 11v, 5.8 amp hours and rated at 2 hours that should give me 5 times the capacity. Which is of course laughable. And clearly wrong.
It doesn't take into the account it has to run through a DC rectifier.
But my question to you lot is...how long do you think it'll last? Do you think it'll even boot....?
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6 comments:
hahaha, just plug it in, saves trouble, money and space.
Bored now with this conversation.
I'm gonna keep an eye out my window for a cloud of smoke rising over your place :P
Why you just cant buy a new battery is just beyond me!
He saysits too expensive, plus he just bought a new power supply at like 120$ canadian.. PLUG IT IN MARTIN !!
I know its just too logic for you you have to go beyond that but come on.. it will still be a hassle to carrye the thing around.
Don't listen to da haters Martin! You can rebuild it! You can make it Better! Stronger! FASTER!
any updates its has been almost 5 days, thought you were making it ... Thursday?
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