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Power bank - 2016

A spare 8000mAh Li-pol battery transformed into a power bank. The 5V output is provided by a small step-up converter, able to sustain about 1A of power output, and the battery voltage is displayed by a 7-segment voltmeter.

Power bank Power bank inside

Everything is fitted inside a platic box and fixed in place using a silicone sealant.

Power bank voltmeter Power bank output