Li-Ion charger V2

188

03:41:53

Just another design I found online, trying to find a simple way to make this work better

published 10 years ago

nikisalli

10 years ago

Does this work?

ETJAKEOC

10 years ago

I haven't tested it or built it, but it should

xbuilder

10 years ago

Why so many transistors? Im somehow new to this

ETJAKEOC

10 years ago

I've been studying this over looking for methods to shrink and remove extra components, one was simply a current sink source depending upon the half voltage of the Li-Ion (another voltage divider), which I removed, I want the simplest most efficient charger

flowDAQ

10 years ago

Looks like it has a few mA charging at 4.2V, and I think that will set of the thermite in Li-Ion.

ETJAKEOC

10 years ago

So maybe I should cut charge down to 4V and hope it stops that trickle current? Or I can utilize that to power the phone and keep the battery charged :p

Thom888

10 years ago

You will get more charge cycles out of the Li-Ion battery if you don't push it all the way up to 4.2V. Set it for between 4V and 4.1V and then when the charge voltage and battery voltage are the same no current will flow unless the battery self discharge rate is high.

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