Charge Discharge Automation Relay Module DC5V/2.1A Boost Module

• Charge and discharge at the same time are allowed
• Works as a 4.2V/2.1A charge(on charge mode); works as a 3.7V to 5V boost module on discharge mode
• Over-current protection; over-voltage protection; short circuit protection; over-temperature protection
• In discharge mode, the charge mode keys function is invalid
• With battery indicator

Specifications:

• Charge voltage: DC4.5-5.5V
• Charge current: 0-2.1A
• Discharge efficiency: max. 96%
• Item weight: 2g
• Item size: 27 * 18 * 6mm