What is the difference between valve-regulated sealed lead-acid batteries, stationary lead-acid batteries, and colloidal lead-acid batteries

These are three different lead-acid batteries, all with the same principle. The differences are mainly in the case, electrolyte form and plate structure.
1. The casing of the fixed lead-acid battery is not sealed, the electrolyte is liquid, and the electrode plate is thick and relatively loose, suitable for high-current charging and discharging.
2. The valve-controlled sealed lead-acid battery has a sealed shell, but has a pressure-controlled pressure relief valve, the electrolyte is liquid, and the electrode plate is thin and relatively dense, suitable for medium current charging and discharging.
3. The shell of colloidal lead-acid battery is sealed, and there is also a pressure-controlled pressure relief valve. The electrolyte is colloid, and the electrode plate is very thin and dense, suitable for charging and discharging small currents.

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