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1st Charger and 2nd charger

A project log for Solar Power Bank

Power bank charged via solar uses old batteries

csavageC.Savage 04/02/2017 at 23:010 Comments

The first charger is done, but Im terrible at documenting my projects. I had to reflow the package twice to get one of the pins soldered correctly. After that it was fine. 2nd Charger went together well, and powered on correctly. Problem is it shows 4.30V. Welp. That means pin 6 (Feedback) isnt connected. I'll have to remove the chip, put on a small bit of solder and then reflow it..again.

QFN packages are a pain. Im doing this without any flux or paste. Just plain solder. Maybe I should invest in some flux and paste..

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