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Parallel Cells

Hi all,

I am integrating two 200mAh LiPo batteries into my system. Because they do not come with any protection circuitry, I am designing it into my system. I would like to construct a 3.7v 400mAh pack, which requires wiring the cells in parallel. However, I have a few questions. I would really like to use something like the BQ29312 protection IC and BQ2084 Gas Gauge combo on page 63 of this document, however it only handles 7.4-14.8v packs, not 3.7v. Additionally because I want to wire two cells in parallel, how do I balance their discharge and how do I use them with any of TI’s products?


Kai Kloepfer