Toshiba Satellite T1850c battery

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Axaj
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Toshiba Satellite T1850c battery

Post by Axaj »

I have a very old Toshiba Satellite T1850c that uses Ni-Cad batteries. I have a hardly used one that can hold quite a charge, but I am longing for a Li-ion battery to give a lot of extra juice. Can anyone here help me choose one and get it hooked up? (It is a 9-volt battery, if that helps)
haterz wrote:omg nuh-uh u liar i have a big ps1 and a small 1 and the big 1 is biger on the owtsides so its biger on the insides too cuz otherwise itd b smaler on the owtsides liar
marshallh
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Re: Toshiba Satellite T1850c battery

Post by marshallh »

Ni-Cd cells are 1.2v a piece, Li-ion cells are 3.7v each.

By wiring three 18650 cells in series, you'll get 11.1v.

You need to regulate it down to 9 volts (are you sure it's 9 volts?)

I would try to find an adjustable switching regulator on TI's site. If all else fails you can use a linear LM350 adustable regulator, but just like a 7805 it will get extremely hot and require a hgue heatsink. They are only about 50-60% efficient at most, also. Switching regulators are upwards of 80-90% efficient.
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Axaj
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Re: Toshiba Satellite T1850c battery

Post by Axaj »

Whoops, I meant 9.6 volts. But thanks for your input.
haterz wrote:omg nuh-uh u liar i have a big ps1 and a small 1 and the big 1 is biger on the owtsides so its biger on the insides too cuz otherwise itd b smaler on the owtsides liar
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