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The i1 is a compact yet powerful mini charger which utilizes a USB power port to charge cylindrical rechargeable batteries of lengths ranging from 32 to 70mm.  i2 is covered with PLI (Product Liability Insurance) by PICC
 
Its LCD displays useful real-time charging information including the percentage(%), the current, and the voltage. The military grade loading spring and ABS/PC fireproof case ensure the i1 has a long cycle life.
 
 
 
i1 Charger  button operation and LCD display:
Connecting to power supply without loading batteries, the LCD screen will be bright for 2 seconds then displays “null” which means no batteries being loaded.
Loading batteries , i1 recognizes the batteries in 2 seconds and starts charging . The LCD illuminates for 30 seconds then turns off automatically, a quick double click on the button can keep LCD illuminating for long time.
 
 
Switching output current:  a 3-second long click +  a quick click allow to switch current among 0.5a/1.0a/2.0a , when the desired current is blinking, let it for 10 seconds and i1 output current will be changed.
 
every quick click on the button can display the battery status: voltage, energy being input, charging length
 
I1 charging performance and temperature graphics tested by HKJ:    http://budgetlightforum.com/node/58258
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