LED indicator:The LED indicator provides diagnostic information on the battery status, including: fully charged, charging, power line issue, replace battery pack, and battery overheating or overcooling
Safety & Reliability:Batteries are CE, FCC & ROHS certified.Intelligent Protection against potential damage caused by over-charging, over-discharging, over-voltage, over-current, short-circuit
VANTTECH Service:Please feel at ease to contact our 24-hour online customer service if you have any questions during the use of the battery( on "YOUR ORDER" options click the "contact seller")