USB Lithium Battery Shield Charger 4x 18650 4 slot Holder V9 for ESP8266 ESP32 Arduino

Input overvoltage protection, output overcurrent/short circuit protection, charging timeout/overvoltage protection

Output current up to 3A, efficiency up to 95%

With LED identification percentage electricity metering

Parameter:

This power bank supply has a built-in lithium battery protection IC with overcurrent, overvoltage, undervoltage, etc.

USB port output and mobile power board have extended port 3V and 5V output ports to facilitate customer needs and use, greatly reducing the problem of fewer ports

The 4-level LED light shows the power. The default power-on is always working. It needs to be manually turned off. (If you need to change to the non-working state automatic shutdown mode, just cut the middle line of the “NC” bit or remove the “ROUT” resistor. can)

1.8A charging 3A discharge high integration mobile power IC

Motherboard size: 99.98 * 96.24 * 21mm (L*W*H)

Input port: MICRO USB, type-C, wide voltage, up to 6.5V input

Input requirements: 5V constant voltage power supply can be used as charging power input, matching charger 5V1A or above

Output port: USB or expansion port

Output parameter 5V/3A or 3V/1A

Conversion efficiency up to 95% (high conversion rate)

Working temperature: -20 -70 °C