Mobile Power DIY Board MH-CD42 DC 5V 2.1A

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 than 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, the same definition applies but in reverse.

• Charging voltage: DC 4.5V-5.5V (recommended DC 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° to +85°
• Module with lithium battery protection function (for lithium battery without protection, with protection board)
• Over-current protection (OCP)
• Overvoltage protection (OVP)
• Short circuit protection (SCP)
• Over-temperature protection (OTP)
• Charge and discharge power level 4 interval indication