I need to drive a 90w 5v circuit with 18650 batteries

Chris's picture

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Joined: Jun 03, 2020

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I need to drive a 90w 5v circuit with 18650 batteries
June 3, 2020 - 6:36am

I was wondering if I can do this at all really and I know very little about supplying power with batteries. Would I just use a DC-DC converter like the LTC3780?

Sourav Gupta's picture

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Joined: Feb 12, 2018

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LTC3780 can be used
June 3, 2020 - 1:50pm

Yes, it can be used, but there is a problem. The 18650 has a maximum current rating. You should be careful that the current maximum load current rating should not increase. What is your planing for the input battery spec? voltage? mAH?