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I just got the S20+, I used the Accubattery app to measure my battery health, but in this screen shot it said that my battery starts out less than the advertised battery
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Amazon.com: Battery Voltage Measuring Module, Multifunctional Mobile APP Control High Accuracy Battery Capacity Monitor for Industrial Instruments : Tools & Home Improvement
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Kadimendium Bluetooth Battery Monitor APP Control Capacity Detector Voltage Current Measuring Module Wireless Voltage Current Meter - Amazon.com
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EVTSCAN Battery Monitor 100A 2.4in LCD Display Battery Capacity Detector APP Control Voltage Current Meter with Shunt: Amazon.com: Electronics
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