Simple Dual USB Power Bank Module, Convenient Power Bank PCB, for Lithium Battery Battery Power Bank
•Can connect one lithium battery or multiple lithium batteries in parallel. But the following conditions must be met: capacity≤20W mAh, 3-4.2V voltage.
•Connect the battery positive pole to B+, connect the battery negative pole to B-.
•Charging indication: LCD screen would display the word 'IN' when charging.
•Protection function: Integrate lithium battery protection circuit to overcharge, overdischarge and overload.
•Output load indication: After connecting the load, long press LED switch to start the output. Then screen would show the word 'OUT' and output voltage/current 5V/1A or 5V/2.1A.
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