66Ah 100Ah Car Battery lid cover plasticmould
The upper part of the battery shell is sealed with the battery cover plate of the same material. The battery cover plate is provided with a liquid filling hole corresponding to each single cell battery for adding electrolyte and distilled water, as well as measuring electrolyte specific gravity (also known as phase to density), temperature and liquid level height. The vent hole on the cover of the liquid filling hole enables the gas produced in the chemical reaction of the battery to be discharged smoothly.
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