Connecting the charger
Connect the positive wire clamps to the positive terminal of the battery, and the negative wire clamps to the negative terminal.
There is no need to remove the battery cables if you have a charger to do the job yourself.
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You don't have to unscrew the battery caps. The gas that forms during charging can escape through the ventilation holes in the caps.
The charging current should initially be about 10% of the battery capacity (for example 6.3 A for a 63 Ah battery). During the charging process, the current is automatically reduced.
The battery is considered fully charged if the acid density does not increase any further within two hours.
When charging the battery, the electrolyte partially decomposes. Hydrogen bubbles are formed, which, when mixed with air, forms explosive detonating gas.
It is necessary to ensure good ventilation of the room if the battery is charged with a high electric current.
When the battery is charging, do not smoke nearby. No open fire is allowed near the battery.
Even sparks produced when disconnecting or connecting charger terminals or battery cables can ignite the detonating gas.
Fast battery charging
If someone is in a hurry, they can quickly charge the battery in the workshop. The battery will be ready in an hour. Please note the following:
- An older battery may finally fail due to fast charging. Then a new battery will be urgently needed.
- Both battery cables should be removed. Due to the high charging current, very sensitive electronic components of the car may be damaged.
- Unscrew the battery caps, as the battery releases a significant amount of gas when charging quickly.

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