Note that this charger is strictly for recharging NiMH/NiCd batteries and should not be used for LiPo batteries or Spike the Dinosaur Rc battery chargers:Built-in intelligent charging system, the battery pack will be charged more fully and more balanced. Built-in protections guards against over-charge, over-current, short circuit and reverse polarity, protects your battery and extend life. Whether it's a remote control car, a remote control aircraft or various toys, as long as it's a nickel-metal-hydride battery within the 1.2v to 12v range, it can be charged Lt stops automatically when fully charged: If you plug in power, this nimh battery charger will automatically detect the battery voltage and match the right current to charge, it will shut off when battery is fully charged in order to avoid over-charge. Charging time is 6-10 hours depends on your battery capacity Enhanced Safety: This RC battery charger includes built-in protection features against reverse polarity, short circuits, and over-current situations, ensuring safe and worry-free charging. Five common models: TAMIYA, Mini TAMIYA, SM, JST, Huanqi are suitable for 90% of households. Warranty and Compatibility: The charger has a universal 100-240V AC input, allowing it to be used anywhere. With its compact design, it meets the high standards set forth by CE certification. Additionally, it comes with a 12-month warranty, providing added peace of mind.