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* <span style="color:red;">The power adapter must with overvoltage and surge voltage protection; otherwise, it may easily damage the circuit board. Damage caused by a substandard power supply will not be covered under warranty.</span>
* <span style="color:red;">It is essential to read and understand these safety instructions and warnings before charging your batteries.</span>
* <span style="color:red;">Lithium Polymer and Li-ion batteries are volatile. Failure to read and follow the instructions below may result in fire, personal injury, and damage to property if charged or used improperly.</span>