Cars can't use electricity to battery.

If the battery is charged, but it won't catch fire, it may be that the spark plug is damaged, the accelerator has too much carbon deposit, and the ignition switch fuse is blown. The specific solutions are as follows:

1, spark plug is damaged.

The electrode on the spark plug will release electric spark to ignite the combustible mixture, thus pushing the piston to move, starting the engine and making the vehicle run normally. If the spark plug is damaged and the combustible mixture cannot be ignited, even if the battery is charged, the vehicle will not catch fire. This situation can be solved by replacing a new spark plug.

2. The throttle has too much carbon deposit.

Carbon deposition will absorb some fuel, so that the engine can't get enough fuel when it starts, and the battery will be charged but it won't catch fire. Need timely cleaning and maintenance.

3. The ignition switch fuse is blown.

Some car owners will install high-power electronic equipment in their cars. If these electronic devices work frequently, they may burn out the fuse, and the battery may not catch fire when it is charged, so replace the fuse in time.

Maintenance method of tram battery:

If the vehicle is parked for a long time, it is best to restart it every 15 days as far as possible, and let the engine run for about 20 minutes at a time to fully charge the battery again.

Don't turn on the air conditioner when you start the vehicle, and don't turn off the air conditioner even if you stop and turn off the engine. When you start the vehicle again, the air conditioner will start working randomly, which will affect the life of the battery and the circuit.

If the battery is dead, you can find another car to take the line. If charging is useless, it is very likely that the battery will be replaced.

Start the car many times frequently. Do not start the engine for more than 3 seconds each time. If the engine fails to start for the first time, don't strike the fire repeatedly, which will lead to excessive discharge and damage of the battery.