Single wire battery pack temperature and identification method
A technology for battery packs and batteries, applied in passive battery identification, thermometers, secondary batteries, etc., can solve the problems of increasing battery cost, complexity, and size, and achieve the effect of unaffected accuracy and elimination of pins
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[0027] This invention describes a technique for inexpensively differentiating battery chemistries / pack types on a universal charger hierarchy and monitoring battery pack temperature over a single shared electrical connection. Such chargers are configured to determine, apply and control the charging current used to charge the rechargeable battery without prior knowledge of the battery type and / or capacity. The charger is not limited to, but is particularly suitable for charging battery cells of various sizes, including those used in many modern portable consumer electronics, such as cellular phones, MP3 players, and digital cameras. The disclosed chargers are applicable to many different rechargeable battery types, including lithium-ion batteries with high-speed charging capabilities, such as those employing lithium iron phosphate or similar phosphate-based intercalation compounds as one of the battery electrodes , and lithium-ion batteries, and also includes lead-acid, nickel ...
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