UP board with Raspberry Pi battery !! Issue

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bruce
bruce New Member Posts: 15
Hi there,

Ideally, UP board requires a power from a 5V/4A adapter.
I have purchased an adapter 5V/2A from the local market and my UP board works perfectly.

Recently I purchased a 3.7V 3800mAh 1.8 A, and nothing works perfectly. It powers up the UP board, the system boots and at the next moment it crashes, restarting my UP board.

any advice for using batteries for UP board. I must need it, my project is for handheld use.

Thanks