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►What is battery capacity?
►How to choose the most suitable charging current for your Li-ion batteries?
►High and low voltage separation 每 Special design for XTAR chargers
►0V activation function - Rescue your dead batteries
►Three stages of charging method (TC-CC-CV) - The best way to charge your batteries.
►Soft start 每 Ensure your battery life
►Precise cut-off or termination voltage 每 Professional level chargers
►Automatically restart and stop charging technology 每 Babysitting your batteries
►Reverse-polarity protection and short circuit protection 每 Make sure your safety
►DIY specific operations(For WK21 and TZ20 U2)
►Luminance modes' cancellation and recover
►18700 and 18650 Li-ion battery
►LED knowledge
►Optical knowledge
►About oxidation
►Optical Term
►Battery Types
►About Battery
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