Features: -With advanced 4.8V 2400mAh NiMh technology, low self energy loss, high density. -PVC shell, high temperature resistance, oxidation resistance, corrosion resistance. -With over voltage, over current, over charge and short circuit protection. -It can be connected with a USB charging cable (included), and can be charged by power bank, mobile phone charger, computer and other devices. -Strong compatibility, widely applicable to remote control car models, ship models, etc. .