Providing mobile power for your DIY projects has never been easier with the MH-CD42 Power DIY board. This tiny board offers simultaneous charge and discharge, lithium battery protection, and a 4 level LED indicator. Connect any kind of 3.7V Lithium battery to have a 5V output with current up to 2.1A.
When charging, the four level battery indicator starts with one flashing LED, meaning the battery is less then 25% full. After some time, 2 LED will lit up and the first one would stop flashing. That means your battery is 25% to 49% full. Your battery is fully charged when all 4 LEDs are lit and not flashing. In discharge mode, same definition applies but in reverse.
Features:
Charging Voltage: DC 4.5V-5.5V
Charging Current: 0-2.1A
Charging Quiescent Current: 100uA
Full Voltage: 4.2V+-1%.
Discharge Current: 0-3.5A
Discharge Quiescent Current: 50uA
Discharge Efficiency: 96%
Maximum Output Voltage: 5V
Output Current: 0-2.1A
Ambient Temperature: -20°C to +85°C
Battery Protection Function
Over Current Protection (OCP)
Over-Voltage Protection (OVP)
Short Circuit Protection (SCP)
Over Temperature Protection (OTP)
Charge and discharge power level 4 interval indication
Weight: 4g
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