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Features: This is the circuit board to make a power bank. Designed to meet the individual needs of DIY power bank. Motherboard comes with protection function: Charging overcharge protection Over-discharge protection Overcurrent protection Intelligent output device after charging full Automatically stop charging, to prevent mobile phones overcharge Output voltage and current stable, will not harm user devices Specifications: Micro USB input: 5V 1A USB Output: 5V 2.1A / 5V 1A(Dual USB interface) Charging display: intelligent digital display Batteries Type: Any lithium-ion batteries Product Size: 57mm x 28mm Screen size:27mm x 17mm Installation instructions: The circuit board is connected to the battery negative B-, B + is the positive Do not connect reverse, connecting reversed will burn the board Note: There should be proper insulation between the battery and the circuit board No battery lead should touch the circuit board, so as not to cause a short circuit. Package included: 1 x Mobile Power Bank 18650 Battery Charging Circuit Board with Digital Display
Smart power output,automatically regulate the output current according to the load with overcharge protection,overdischarge protection, short circuit protection,over current protection,over temperature protection, protect the connected the devices, no need to worry about the overcharge your electronics battery,or over discharge the power bank battery, safer to use
On-board blue backlight display the power capacity with 0-100% display range during charge or discharge process
Equipped with LED lamp with push button switch control on/off, Board Size: 66 X 18 X 16mm/2.60 X 0.71 X 0.63inch(L*W*H)
42mA PacMarked BAT-, BAT+ on board, positive pole of battery need to connect B+, the pole of negative need to connect B-, DON’T connect reversed, or will burn out. Need insulation between the battery lead and the board, or will short circuit.kage Included: 1 x 12V Delay Relay Turn off Module
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