Patented battery balancing technology, built-in over protection circuits provide safety and reliabilit, battery cell import from Japan, quality guarantee.
Safety & Reliability: CE, RoHS, UL, FCC Certificated.Longer Operating Time: 5200 mAH vs original battery's 3200 mAH (70~90 min vs.Long Lifetime: ​Save money by using a lithium battery (1000 cycle times, 1 Lithium ion battery = 5 NiMH/NiCd batteries), 5x longer Life than original batteries and all aftermarket replacement batteries.New version: The latest version of 2021, which solves some of the earliest error reporting and non-charging problems, and the work is more stable.