RC Boat HJ811 2.4Ghz High-Speed RC Water Speed Boat Sealed Waterproof Toy Battery:1 Battery What's the voltage range

What's the voltage range

which can effectively prolong the service life of the battery

Package List:1 * Huina 1577 RC Engineering Vehicle1 * Remote Controller (Batteries Not Included)1 * USB Charger1 * 7

brushless grade 3800KV value high pow er high speed motor

RC Boat FT012 Brushless Fast Self Righting 48km/h RC Speed Boat

RC Boat HJ811 2.4Ghz High-Speed RC Water Speed Boat Sealed Waterproof Toy Battery:1 Battery What's the voltage rangeRC Boat HJ811 2. 4Ghz High Speed RC Water Speed Boat Sealed Waterproof Toy Model Number: HJ811 RC Boat Material: Metal, Plastic Frequency: 2. 4GHz Battery for transmitter: 4 x 1. 5VAA batteries(not included) RC Boat HJ811 Battery: 7. 4V 700mAh lithium battery Charging Voltage: 110 240v Charging Time: about 1. 5h Working Time: about 20mins RC Boat HJ811 Max Speed: 20km h Control Channels: 4 Channels Operation distance: 100meters Design: Speedboat State