Packing list: A pair of 7.4V 2200mah lipo batteries (Model: SWB01)
Charging Port Type: Female DC jack (3.5mm outer diameter, 1.35mm inner diameter)
Global Safety Certificate: UL(Underwriters Laboratories Inc.) and FCC(Federal Communications Commission)
Storage method: In order to prevent over-discharge, keep the battery about half of its charge, and then once every six months to one half of its charge state. Store in a dry indoor environment.
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