2
Use with a USB 5V power source
Charging from a computer USB port
LED Indicator of Charging status
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Charging Temperature Protection
Charging Under-power Protection
Factors affecting Charging Speed
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Battery LED Not On During Charging
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Battery Charge Protection Type Indication
Blinking Immediately Upon Charging
Blinking After Charging Some Time
Blinking After Charging Over Time
Under Power Protection Remedies
Indicators of Battery Fault or Degradation