How much repair fluid should be added to a 12V battery?
2 Answers
12V 20Ah battery requires 10ml to 15ml per hole. Conventional fluid replenishment method: Distilled water, deionized water, or replenishment fluid with a specific gravity of 1.0 to 1.2 should be used. After replenishing the lead-acid battery, it must be left to stand for about 10 hours to allow the liquid inside the lead-acid battery to fully integrate before proceeding with the repair. Do not overfill the fluid. Replenishment fluid with too low a concentration or improper replenishment for lead-acid batteries will affect the repair effect or cause a decrease in the battery's capacity. The use of ordinary drinking water or inferior lead-acid battery replenishment fluid is strictly prohibited, as it may cause severe damage to the lead-acid battery. Precautions: First, add the nano-carbon sol battery activator according to the specified dosage. If the battery is severely dehydrated, add a small amount of deionized distilled water. Look through the filling hole to check if the separator inside the battery is moist but no water is visible, or use a syringe to withdraw any excess water. The principle of adding water is to err on the side of too little rather than too much.
As a regular car owner, I check my 12V battery fluid level every week because water evaporation can cause the level to drop; when it's low, I add distilled water as a replenishment. Open the battery cover, and each cell has high and low marks. The amount of water to add is usually 50-80 milliliters, just enough to reach the maximum line. Once, I added up to 100 milliliters, and the electrolyte overflowed, corroding the engine hood, so the amount must be precise. Different batteries vary in size—for my small car, I add only 40 milliliters per cell, while for a large truck, I add up to 70 milliliters. It's recommended to add when the engine is cold to avoid burns and use a funnel to control the amount. Only add distilled water—avoid other liquids, as minerals can damage the battery's internals. Regularly topping up can extend the battery's lifespan by three to five years, and check more frequently in summer to prevent overheating.
