lipo battery 7.4V5Ah

Very low profile - batteries resembling the profile of a credit card are feasible: cell thickness measuring as little as one millimeter (0.039 inches). Flexible form factor - manufacturers are not bound by standard cell formats. With high volume, any reasonable size can be produced economically. Lightweight - gelled electrolytes enable simplified packaging by eliminating the metal shell. Improved safety - more resistant to overcharge; less chance for electrolyte leakage. CAUTIONS!Do not use or leave the battery pack at very high temperature (for example, at strong direct sunlight or in a vehicle in extremely hot weather). Otherwise, it can overheat or fire or its performance will be degenerate and its service life will be shortened. Do not use it in a location where static electricity is rich, otherwise, the safety devices may be damaged, causing a harmful situation. In case the electrolyte gets into the eyes due to the leakage of battery pack, do not rub the eyes! Rinse the eyes with clean running water, and seek medical attention immediately. Otherwise, it may injure eyes or cause a loss of sight. If the battery pack gives off an odor, generates heat, becomes discolored or deformed, or in any way appear abnormal during use, recharging or storage, immediately remove it from the device or battery charger and place it in a contained vessel such as a metal box. In case the battery pack terminals are contaminated, clean the terminals with a dry cloth before use. Otherwise power failure or charge failure may occur due to the poor connection between the battery pack and the electronic circuitry of the instrument. Be aware discarded battery packs may cause fire, tape the battery pack terminals to insulate them before disposal.