What are the basic requirements for series-connected batteries?

When connecting several batteries in series, the following basic requirements must be observed: ●Keep the connection points of the batteries clean. When using four batteries in series, there are a total of eight connection points (the connection point from the battery to the battery compartment, and the connection point from the battery compartment to the next battery). Each connection point has a certain resistance, if a new connection point is added, it may affect the performance of the entire battery pack. ●Do not mix batteries. When the battery power is low, replace all the batteries. When using in series, use the same type of battery. ●Do not charge non-rechargeable batteries. When charging a non-rechargeable battery, hydrogen will appear, which may cause an explosion. ●Pay attention to the polarity of the battery. If the polarity of one battery is reversed, the voltage of the entire string of batteries will be reduced instead of adding a new voltage. ●Remove the fully discharged battery from the suspended equipment. Old batteries are more prone to leakage and corrosion. As far as alkaline batteries are concerned with carbon-zinc batteries, the problem is not so serious. ●Do not put all the batteries in one box, as this may cause a short circuit. A short-circuit of the battery can cause heat and cause a fire. Please put waste batteries in a small plastic bag to insulate them from the outside world. ●The original battery packs similar to alkaline batteries can be thrown into ordinary trash cans. But it is best to send the used batteries to the regeneration cycle. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the lithium battery protection board for mobile phones? What kind of functions does it have?