The wrong way to use a battery

Now storage battery is an indispensable part of automobile. It can be divided into traditional lead-acid battery and free maintenance battery. Because the battery uses lead calcium alloy for grid frame, so it has less water decomposition when charging, and moisture evaporation is also low. Coupled with the outer seal structure, the acid gases released very little, so compared with the traditional battery, it does not need to add any liquid, has pile head for wiring and long power storage time. Many people knew function and using method of storage battery, but in some way are wrong. Now let's introduce four battery common error methods.

1. The battery in series combination

In the battery, can appear sometimes the phenomenon of the new and old battery in series, little imagine, it will shorten the service life of battery. Because of the large chemical reactions within the new battery material, high voltage, small internal resistance (12 v battery internal resistance is only 0.015 0.018 Ω);And low voltage of the old battery internal resistance is bigger (12 v battery internal resistance of the old Ω in 0.085 above).If will be a mixture of old and new battery series, then under the charging status, the old battery charged at the ends of the voltage will be higher than at the ends of the new battery charging voltage, the result is a new battery is not yet adequate but old battery is already too high; In discharge state, because new battery charge capacity than the old battery charge capacity is big, the result of the old battery discharge excessive, and even cause the old battery. So the battery must not be a mixture of old and new.

2. Diesel damage of single cell battery still continue to use

Because diesel engine compression is larger, the required starting torque is bigger also, so generally adopt 24 v voltage starting of diesel engine, in order to improve the rating of the starter, generators and whole vehicle electrical equipment still use 12 v voltage, voltage switch are installed in the diesel electric circuit, therefore, when the starter switch will work two 12 v battery series, with 24 v voltage power supply, in a starting state, switch and two battery recovery for the parallel operation, in order to meet the needs of the 12 v voltage. But when one of them a single cell battery damage, some drivers will continue to use after the short circuit, such as two voltage of the battery, can cause larger discharge current and charging current, lead to battery and generator is damaged, so the diesel car battery should be replaced immediately after the single damage or repair, and will continue to use after the single battery short circuit.

3. The battery charge capacity and engine don't match

Depending on the type of engine and use condition, reasonable choice of battery charge capacity is to improve the efficiency of storage battery, one of the important ways to prolong its service life. Starter when you start the engine, the battery output current is very big, in the general case for 150 a - 200 - a, in the low temperature (10 ℃) starting when the output current of 250 a - 300 - a. If the battery charge capacity and engine don't match, small capacity battery charge, is in the starting resistance is big, the small charge capacity of battery discharge in severe cases, is bound to accelerate active material per unit time and the reaction of sulfuric acid, make the battery temperature rise, plate bending due to overload, resulting in active substances in clumps, plate early damage, which greatly shorten battery life. If the battery charge capacity is big, although not happen this problem, but we cannot make full use of the active substance, make the battery economy. So the battery charge capacity, must match the engine. Usually the choice of the battery charge capacity, should according to the starter power, voltage and the load of the electrical equipment.

4. The battery in parallel to mix

Some drivers when starting the engine, due to insufficient original battery to save electricity was in parallel on a common battery using enough electricity. Actually parallel after full charge battery charged will be a lot of power to save electricity shortage of battery charging, falls off easily to plate active substances, affect the service life. At the same time after the battery in parallel starter does not provide a large starting current, more conducive to the engine starting. Accurate method should be to save electricity shortage of battery to be removed, with sufficient electric battery, and then start the engine.

The page contains the contents of the machine translation.