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Battery
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On the other side the battery is soldered to the board.
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It is marked with T (temperature), B-, and B+.
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The battery is a Synergy AHB110520CPS. An online search revealed nothing. I wonder if this is a proprietary battery only sold to Bose, or its just already obsolete (1.5 yrs old).
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The battery specs are 495mAh 3.7V, 4.2V max (I think).
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It is an Advanced Hybrid Battery, which is a very compact battery technology made by Synergy Taiwan.
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