Resulting in the absence of the governor to accelerate high-speed lead-acid battery consumption 12V lead-acid battery minimum protection voltage 10.5V, 36V battery pack if the minimum retention voltage is 31.5V, the controller undervoltage protection voltage currently used by most automakers It is also 31.5V. On the surface this is true, but, actually, when only 31.5V 36V battery voltage, the battery capacity of the poor exist, certainly there will be a battery voltage drops below 10.5V, the battery is in the over-discharge state. At this time, over-discharge of the battery capacity sharply, then damage on the battery is not only the single cell, but affects the entire group battery life. In fact, we need to change the battery electronics, after the battery voltage is below 32V up to 27V, less than two kilometers to continue the increased capacity, and damage to the battery is very large. As long as this happens 10 times, the battery capacity will be less than 70% of nominal capacity. Additionally electronics batteries, some users find that the battery after low voltage, over 10 minutes electronics 3v battery free shipping, the battery without voltage, and it has taken to electric driving, which is a larger battery damage, and most vehicles manual does not give the user a warning. At present, most inside the controller has adjustable potentiometer, and the vibration of the adjustable potentiometer drift is more serious. Price competition in the face of more attention to the appearance of the car users, there is little anti-vibration products using precision multi-turn potentiometer, after such a controller vibrate drift is not surprising. Above content provided by Hebei Tianyi Electric Co., Ltd., we hope to help a friend in the same industry. Electric car lead-acid batteries discharge principle lead-acid battery positive electrode active material is dark brown lead dioxide, the negative electrode active material is light gray spongy lead electronics, said battery cr2032 3v, when added to the electrolyte, there is relatively positive plate high potential (1.69V), there is a low potential negative electrode (-0.358V), the positive, the potential difference between the anode constitutes the battery terminal voltage. Positive lead dioxide and spongy lead negative discharge occurs when a chemical reaction to produce lead sulfate. During charging, the positive and negative and restore the original lead dioxide and spongy lead. The overall reaction process is reversible. This electrochemical reaction theory batteries so called "double sulphate theory." Above content provided by Hebei Tianyi Electric Co., Ltd., we hope to help a friend in the same industry. Electronics said the battery needs to change it, a resistance to the battery, electronic battery provided by Hebei Tianyi Electric Co. Hebei Tianyi Electric Co., Ltd. (www.tianyidq.com) provide customers with "electric vehicle batteries, Childs battery, battery electric tricycle, wall switch" and other services, the company has "a resistance cell, Vicki Electric, Fluke Jubilee" and other brands . Focus on wall switches and other industries have a higher visibility in Xingtai. Welcomes inquiries, contact: Li.