What is the method of manually opening the shell to repair the battery?

First of all, it's not recommended because there's a 90% chance you won't be able to put it back.

Well, let's say the method. Otherwise, I don't think you will give up.

First, open the cover plate (so that you don't accidentally open the valve cap and fall off it and you will be stupid) and then put the valve cap and cover away. Meet the first challenge: open the lid.

Because the lid is glued on, and the material is **plastic, so there is a high chance that you will destroy the cover.

If all goes well or you have a spare lid, the next thing you have to do is check each positive and negative plate and partition one by one. See if there are any drops, short grids, virtual soldering and missing soldering. Find the cause, replace it (in this case, you may need a high-powered electric welding torch) and move on to the next challenge.

Okay, after this step, put the plates back in the original combination, and then, put the upper lid on. Why don't you add acid and cover it again? Because you have a 99% probability that it will flow out with added acid.

The way to add acid in the battery factory is to fill the upper lid with an acid adding machine, because the battery of the general electric vehicle is not a rich liquid type, so there is no space for you to add acid normally. There's a simple solution, though. It is to go to the infusion equipment of the hospital and drip the acid into it little by little.

Allow the acid to soak naturally into the tiny space between the plates and the separators. Well, after doing this, you can put the battery on the charging rack and charge and discharge it a few more times, and then stand still for 48 hours, and it's repaired. Difficult, isn't it?

I find it difficult to read the first sentence.

That's a good point, otherwise I really wouldn't give up.

The battery can be repaired, including manual opening of the lid and replacement of the plates. But the battery has a lifespan, generally 2-3 years. That is to say, within the normal use period, it is valuable to repair, and if there is a problem, it can be added.

Open the upper cover of the battery, take out the broken plate, connect the good press, buckle the cover, seal it, add water to charge, OK

Open the shell: find the dividing line with the adjacent grid on the damaged single grid, draw the shell opening line on the side of the damaged grid, extend the line with the shell opening knife to open the upper cover, some masters teach to use an angle grinder to cut, so that the gap is too large, and it will not be good to seal the shell in the future.

Dismantle the waste plate: after opening the shell, suck out the electrolyte inside, be careful not to throw it away, use a single grid detector to detect whether this is damaged, avoid misjudgment and waste, and cut off the tabs with a lead welding machine after confirmation, and pad a cardboard under the tabs to prevent lead slag from falling into the plate.

Dismantle the plate: Before dismantling the plate, we must check whether the dismantled plate is a good plate, avoid replacing the bad plate, and pad a cardboard under the tab to prevent lead slag from falling into the plate.

Welding and ear: according to the size of the ear to choose the welding current, generally 60-200ah battery selection 300a current, carbon rod selection 8mm, so that the carbon rod will not be too hot, the welding rod is generally done by yourself, the diameter of about 6mm can be, welding cover: generally use polypropylene electrode, welding rod is divided into 6mm and 9mm two kinds, with the shell knife to open with 6mm electrode, so beautiful and beautiful, plastic welding gun with 500w on the line, start with high-grade welding a few centimeters with low gear, welding to press the electrode hard, Weld as flat as possible.

Battery, also called battery, battery is a kind of battery, its working principle is to convert chemical energy into electrical energy. Usually, people refer to batteries as lead-acid batteries. That is, a battery mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution.

A battery that can be recharged after discharge. There are lead-acid batteries, nickel-iron batteries and nickel-cadmium batteries. The positive electrode of the lead-acid battery is lead dioxide, and the negative electrode is lead, with dilute sulfuric acid solution as the electrolyte.

When discharging (using), the positive and negative electrodes react with sulfuric acid to form lead sulfate, and when the concentration of sulfuric acid solution drops to a certain level, it must be charged. When charging with an external power source, the electrode and solution can be restored to their original state, and they can be used again after charging.

1) Ordinary battery; The plates of ordinary batteries are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price; The disadvantages are low specific energy (i.e. energy stored per kilogram of battery), short service life and frequent routine maintenance.

2) Dry-charged battery: its full name is dry-charged lead-acid battery, its main feature is that the negative plate has a high power storage capacity, in a completely dry state, it can save the power obtained within two years, when using, only need to add electrolyte, and wait for 20-30 minutes to use.

3) Maintenance-free battery: Due to the advantages of its own structure, the consumption of electrolyte is very small, and there is basically no need to replenish distilled water during the service life. It also has the characteristics of shock resistance, high temperature resistance, small size, and small self-discharge.

The service life is generally twice that of ordinary batteries. There are also two types of maintenance-free batteries on the market: the first one does not require maintenance (add replenishment solution) after adding electrolyte at the time of purchase; The other is that the battery itself has been added with electrolyte and sealed at the factory, and the user cannot add refill liquid at all.

Manual repair of the battery is mainly to solve the battery, which cannot be repaired by the machine. Segment short circuit, manual opening of the cover to replace the plate. Repair of vulcanization and water loss machine.

If the battery is completely broken, it cannot be repaired, in fact, it is not cost-effective to repair the battery. It is recommended that you find a professional to check the charger and battery.