Q&A

• What harm can be caused by untightened connection bolts?

  The loose connection will cause the resistance of the connection to increase, and it is easy to cause a spark during the charging and discharging process, which will lead to heat, fire and accidents in serious cases.

• Can batteries with different capacities, different performance or different manufacturers be connected together?

  When using batteries, try not to mix old and new batteries, otherwise the new battery will be in a state of excessive discharge, increasing the possibility of leakage, and because different brands of batteries due to their electrochemical systems are different, its electrical performance is also different, and there will be safety risks when mixed.

• What is the actual capacity of the battery?

  The actual capacity of the battery refers to the actual amount of electricity released by the battery under certain discharge conditions, which is mainly affected by the discharge rate and temperature (so strictly speaking, the battery capacity should indicate the charge and discharge conditions).

• What causes the battery to heat up after charging?

  In the process of charging the battery, part of the electrical energy is converted into chemical energy, and part of it is converted into heat and other energy. Rechargeable battery heating is a normal phenomenon, but when the temperature is high, it should be timely checked whether the charging current is too large or the battery internal short circuit, etc., the relationship between the heat and the amount of electrolyte is small, if the sealed battery electrolyte amount is small, the internal resistance increases, it will also cause the battery to heat up and the terminal voltage is high when charging. Battery aging, electrolyte drying, internal short circuit, etc., will also cause heat. The charger can not be constant voltage in the late charging period, so that the battery voltage exceeds the allowable value, the temperature will rise, and the serious will bulge and the end of life.

• What is the harm of a hot battery?

  Whether the battery is in use or in charge, a small heat is allowed, but no abnormal heat is allowed. Abnormal heat is obvious, touch the battery shell can have an obvious feeling. Heat is very harmful to batteries. Heating will first evaporate the electrolyte water and gradually dry up, then the charging efficiency is reduced, plate deformation, internal resistance is increased, the oxidation of mechanical components is accelerated, and the plate or insulator is burned out, and finally the battery capacity is reduced and the life is shortened.

• What are the negative factors for batteries?

  First, the lead-acid battery is undercharged, the battery is often dissatisfied, and the plate can not be restored in time after vulcanization, which is extremely taboo for lead-acid batteries; The other is the underbalance between the single cell batteries in the battery pack, resulting in the gap between the degree of discharge and the degree of charging between the single cells in a group of batteries, the more undercharged, the more overcharged. Affect the life of the entire battery pack, but also to their own economic expenditure. "Two over" and "two owed" is the enemy of the battery, can not be underestimated. But "two" and "two" is caused by people themselves, the problem is more complex, there are many reasons, from the selection, the use of maintenance, the rationality of the controller and the charger, the timely detection of the cause of battery failure, etc., they are interrelated.