Features: 1. With over voltage, over current, over charge and short circuit protection. 2. Can provide 3 times working time than your original 4.8V 700mah Ni-CD battery pack (original 4.8V 700mah Ni-Cd capacity working time 25-30 minutes when fully charged). 3. With charging cable and charging indicator light, easy to check the charging status. 4. Suitable for electric remote control car, stunt car. Specification: Size: AA*4 units Tension: 4.8 V Capacity: 2400mAh Rechargeable: Yes Plug-in Type: SM -2P-Vonnector Package Included: 1x 4.8V 2400mAh Battery 1x USB Charging Cable .