We found that electric vehicles after a period of use, the capacity of the battery slowly decreased, the driving distance became shorter and shorter. Why? According to observation, this situation is not a battery quality problem, usually improper use leads to premature aging of the battery. Below, electric vehicle observers to analyze - battery water loss is the cause of electric vehicle battery capacity of the biggest reduction.

Some doubt that electric cars are mostly maintenance-free lead-acid batteries, with maintenance-free seals. Why will there be "water loss" phenomenon? In fact, once the battery appears overcharge, large current discharge, internal resistance increase, short circuit and other problems. Heat is easily generated, water vapor is formed, and a small amount is lost. Over time, the battery will be in a "water loss" state. But the electrolytic chemical reaction can not take place for a long time, serious "water loss" will make the electrolyte black or hard.

How to do electric car battery water loss?

Step 1: Pry the lid off the EV battery.

At present, some brands of electric car batteries are ABS glue, some are buckle type, some are skateboard type. Pry open must be in accordance with the connection of the battery, do not exert too much force, so as not to damage the cover plate.

Step 2: Open the rubber cover to expose the air vent.

There are six exhaust rubber covers on the battery. When opened, it reveals an air vent, through which you can see inside the battery. Part of the battery exhaust valve can be rotated to open, at this time can be opened.

Step 3: Open the end cover and refill the water.

Under normal circumstances, electric vehicle battery surface is wet, but if the water loss is serious, it will dry up. It is recommended to use an eyedropper to inject water into the battery. After adding water, cover the vent hole with a guard. Be careful not to cover the vent.

As for the principle of hydration, it is better to have less than more. If you don't think it's enough, keep adding, but don't add too much at once. That could damage the panels. In particular, too much water will lead to a decrease in the proportion of acid, resulting in a decrease in battery capacity, affecting its endurance and service life.

Water refill tool can use special battery watering gun, can effectively solve the manual water control is not accurate, excessive or insufficient water problems, battery water nozzle with a key water refill function, water full induction stop, improve the safety of battery water, effectively extend the battery life, and low price of water gun, can save high manual maintenance costs

Lham water cannon has the following advantages:

1. Automatic water adding, saving labor cost;

2. Adjust the limit stop to control the height of liquid level, water full induction stop;

3. Simple operation, easy to carry, equipped with portable storage box, when you take it

Lham has always focused on battery accessories, supporting related business, in the field of safety, convenience, maintenance of automotive battery, industrial battery has a deep accumulation of technology and practical technology patents. At present, the main products of the company are: battery status indicator, battery safety valve (exhaust bolt), battery equalizer, waterproof permeator valve, forklift battery automatic water refill device, battery water shortage alarm, battery water gun and other products..