This is a mobile powerbank module with Protection Function: The protection circuit of the boosted lithium battery has been integrated, prevent over-discharge, over-charge, overload short circuit protection, over current protection, and over temperature protection, The positive pole of the battery is connected to B+ and the negative pole is connected to B-, do not reverse it. If it is reversed, it will burn out
Charge indication of this power bank pcb board: The word “IN” will be shown in the display; Output indication: Long press the LED button after turning on the load, Start output, The word “OUT” and the current and voltage of 5.0V1.0A or 5.0V2.1A will be displayed in the display
Designed for 186 50 battery DIY power bank: The battery of the 186 50 battery must be flat, and the length is 65MM. The pointed battery cannot be used. If you are using old batteries, different capacities, different brands are not available, the assembled battery is guaranteed to be at least 3.5V per voltage. If the voltage is too low, it will not be charged. (Note: It also support lithium battery, mobile phone battery and tablet battery
