The basic working principle of a battery, the battery's basic operating principle ---- chemical reaction PbO2 + Pb + 2H2SO4 2PbSO4 + 2H2O 2, Description: The substance involved in the chemical reaction of the battery: positive plate: PbO2; negative plate: Pb; electrolyte : discharging the aqueous solution of sulfuric acid: positive electrode plate and the negative electrode plate PbO2 Pb PbSO4 electrolytic solution H2SO4 reduced density. Charging: positive electrode plate PbSO4 restored to PbO2; returns to the negative electrode plate PbSO4 Pb. H2SO4 electrolyte solution increases, the density decreases. After parking the car battery can be long, automotive electrical devices have headlights, tail lights, reading lights and a radio or CD, the current mainstream models on the market, its capacity batteries are basically between 35Ah and 45Ah. The headlights are mostly 55 watts of power / month, taillights power of 5 watts / month lead-acid batteries, reading lights power of 5 W / automobile batteries, radio power is 5 watts / month, CD player power will be higher than radio. Car audio enthusiast who loves to play, there are different degrees on the modified car audio equipment, its consumption of electricity will be greater. According to experience, in a good car battery cases, opening the headlights, reading lights, radio, the capacity of 35Ah battery operating time is about three hours, while the capacity of 45Ah battery operating time can be a little longer in between 3-4 hours . The higher the volume of the radio or CD, the greater the power, so the battery power usage time, but also consider this issue. In addition, the battery life is generally 2-3 years, so the battery, the battery also affects the old and new continue to supply the length of time. If a user without permission to install some electrical ABM battery had no such subwoofer, etc., will result in excessive use of batteries. He warned the owner, if the battery old, working time is best not more than two hours. Batteries wholesale manufacturers, Wei Li Po batteries (certified), the battery is provided by Shenzhen Wei Lai Po Battery Limited. "Car batteries, car batteries, lead-acid automotive batteries" preferred Shenzhen Wei Lai Po Battery Co., Ltd. (2), the company is located in: Shenzhen, Guangdong Province Chang Chun Road Industrial Guangming New Hing Fat Industrial Zone, over the years, Wei Li Po battery to provide customers with the best quality service, Contact: Mr. Liu. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Wei Li Po batteries expect to be your long term partner!