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Li-Ion Prismatic Battery Pack Intended for Portable Therapeutic Equipment

Wed, 12/02/2009 - 4:28am

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This Li-Ion Prismatic battery pack–rated 7.4 V, 1,900 mAh–consists of two Panasonic CGA103450A 103450 sized cells packaged in a custom enclosure with protection and fuel gauge circuitry included. The protection circuitry is designed based on a Seiko S-8232AKFT-T2 control chip while the fuel gauge and management is done by TI BQ27000 based circuits. The custom frame is made of a poly carbonate/ABS mixture, custom contacts made of nickel, and sealed in an ET label material. The battery pack has onboard protection from short circuit, over voltage, over current, under voltage, overcharge, over discharge, and over temperature. The battery shall deliver a minimum of 80% of its rated capacity after the first three hundred 300 cycles.


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