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3.7V lithium battery booster module DIY 5V 1A Output
Features:
This PCB also supports charging the battery, simply supply a 5V micro USB source to the charging input and it will charge the connected battery to 4.2V.
Great for mobile power source using Lithium-ion batteries (unprotected is also ok).
Connect multiple batteries to the battery input to increase the capacity power capacity.
With the iPhone recognition circuit, it can charge an iPhone.
Protection Circuit:
Overcharge protection: 4.3V
Overcharge protection release: 4.1V
Over-discharge protection: 2.9V
Over-discharge protection release: 3V
Specification:
Charging voltage input: 5V 1A
Step-up voltage output: 5V 1A max
Transient current: 180uA
Red LED: Charging
Green LED: Charging completed
Blue LED: There is a load in the USB
