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Frequent maintenance of maintenance-free batteries

by:Power Kingdom     2021-04-19
Due to the advantages of its own structure, the maintenance-free battery consumes very little electrolyte and basically does not need to be supplemented with distilled water during its service life.   The voltage of maintenance-free storage battery is 2V, usually three lead storage batteries are connected in series, and the voltage is 6V. The car uses 6 lead-acid batteries in series to form a 12V battery pack. Ordinary lead storage batteries should be supplemented with sulfuric acid after a period of time to keep the electrolyte containing 22-28% dilute sulfuric acid.  The service life of maintenance-free batteries is generally twice that of ordinary batteries. There are also two types of maintenance-free batteries on the market: the first is that the electrolyte is added once at the time of purchase and does not require maintenance (add supplementary fluid) after use; the other is that the battery itself has been filled with electrolyte and sealed up when it leaves the factory. , The user cannot add refill at all.   The plates of ordinary batteries are made of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price; its disadvantages are low specific energy (that is, the electric energy stored per kilogram of storage battery), short service life of maintenance-free storage battery, and frequent daily maintenance.
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