Gently pry off the battery cover with a hard tool. Some battery covers are attached to ABS, and some batteries are buckled together. Some are skateboards. Please be careful not to damage the lid when you pry it off. Off-road forklift truck
At this point, you can see the rubber covers of the six exhaust valves. Open the rubber cover to expose the air vent. You can see inside the battery through the vents. Some batteries have exhaust valve seats that can be unscrewed without opening the rubber exhaust valve. Some batteries have padding around the rubber cover.
Open the lid and check the hole for dry areas and water, that is, if the battery is short of water. The panels are wrapped in white fiberglass and usually need to be wet. The distilled water is sucked into the dropper and poured into the battery through the vent hole. Cover the battery vent with a breathable protective cover to prevent dust from falling into the vent.
Medical distilled water is recommended. The water table principle needs to be low, but not much. If not, adding acid reduces the acid ratio and depletes battery capacity. Inexperienced people can use glass, plastic and other straws as hydration tools, adding 5 ml of water to each hole. Do not use tools that contain metal as water supplies. The syringe should be pulled out of the metal needle and placed in a plastic tube. Off-road forklift truck