Can lead-acid batteries be shut down at-35℃?

Ordinary lead-acid batteries will shut down. No matter domestic or imported ordinary lead-acid batteries (rich or poor), they can't bear the electric loss caused by low temperature. It is normal for the discharge capacity to decay by 50% below 0 degrees, and it can barely last for more than ten minutes at MINUS 20 degrees.

If there is such a demand, it needs to be used in low temperature or ultra-low temperature environment. Find a nickel-cadmium battery or a lead-acid colloidal battery, otherwise it won't work, and this battery is surprisingly expensive.

The density and level of electrolyte should be checked every time the lead-acid battery is maintained, and distilled water should be added if it is insufficient. However, with the upgrading of battery manufacturing technology, lead-acid batteries have developed into lead-acid maintenance-free batteries and colloid maintenance-free batteries, and lead-acid batteries do not need to add electrolyte or distilled water.

Extended data:

The electrode plate of ordinary storage battery is composed of lead and lead oxide, and the electrolyte is sulfuric acid aqueous solution. Its main advantages are stable voltage and low price; Disadvantages are low specific energy (that is, energy stored per kilogram of battery), short service life and frequent daily maintenance.

Charging is to connect an external DC power supply to the battery for charging, so that electric energy can be converted into chemical energy and stored. Discharge is the release of electric energy from the battery to drive external devices.

When the charging of VRLA battery will reach the peak, the charging current is only used to decompose the water in the electrolyte. At this time, the positive electrode of the battery produces oxygen and the negative electrode produces hydrogen, and the gas will overflow from the battery, resulting in the decrease of electrolyte, so it is necessary to replenish water from time to time.

On the other hand, at the end of charging or under the condition of overcharge, water is decomposed by using the charging energy, and the oxygen generated by the positive electrode reacts with the sponge lead of the negative electrode, so that part of the negative electrode is insufficiently charged, and it is proposed to generate hydrogen at the negative electrode.

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