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China BMS/PCM/PCB with Fuel/Gas Gauge for 7s (25.9V) ~13s (48.1V) Li-ion and Li-Polymer Battery Pack (0.8Ah-32Ah) with I2c, Hdq Interface Communication - China Battery Protection Circuit, Protection Circuit Board
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Tiny, Accurate Battery Gas Gauges with Easy-to-Use I2C Interface and Optional Integrated Precision Sense Resistors | アナログ・デバイセズ
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LTC2944 - 60V Battery Gas Gauge with Temperature, Voltage and Current Measurement - Electronics-Lab.com
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