Simple li ion pouch 3.7 350 mah charger

Thread Starter

Momentory

Joined Sep 4, 2022
101
I want to make charger for my 3.7v 350 mah li ion pouch battery

download (13).jpeg

I already made tp4056 charger but i want something smaller and simpler

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Ya’akov

Joined Jan 27, 2019
8,973
Smaller and simpler than 3 SMD chips, and 10 passives?

Get rid of the LEDs and save 4 parts? Live dangerously and toss out the DW01 for another 6 part discount?

What could you mean than smaller and simpler? You could build the charger in the schematic, which is the ultimate, standard, paired down option, on a US quarter single-sided.

Or, you can spend less than one USD and buy a typical commercial version:

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