Attention: The operation of the engine with the battery disconnected is not allowed, because. this damages the vehicle's electrical system.
Safety instructions: Never short-circuit the battery - this means that the positive (+) and negative (-) do not connect the poles directly. In the event of a short circuit, the battery will become hot and may burst. Do not expose the battery to naked flames Battery electrolyte is corrosive and should not come into contact with eyes, skin or clothing. Otherwise, immediately rinse the place where the electrolyte gets into with plenty of clean water.
The battery can be charged. without removing it from the car, however, before charging it is necessary to disconnect the ground wire from the battery poles (-) and positive wire (+).
Attention: In this case, the memory of the electronic control unit for the injection system is erased "operating parameters", and from the radio storage device - the code is protected from theft and tuned radio stations. Therefore, before disconnecting the battery, be sure to read the instructions in chapter "Removing and installing the battery".
Before charging, check the electrolyte level, if necessary, add distilled water.
Thaw a frozen battery before charging. A charged battery freezes at about -65°C, a half-discharged battery at about -30°C and a discharged one at -12°C.
* Unscrew the plugs from the battery or squeeze them out with a narrow screwdriver and put them on the holes. This prevents splashes of electrolyte on the lacquer due to the release of gases during charging.
The rechargeable battery should only be charged in a well-ventilated area. When charging the installed battery, the engine compartment hood must be open.
Connect the positive pole of the battery (+) with the positive pole of the charger, and the negative pole of the battery (-) - with the negative pole of the charger.
During charging, the temperature of the electrolyte should not exceed +55°C, otherwise stop charging or reduce the charging current.
If the battery has been in a discharged state for too long, it may not fully charge or may not charge at all. In this case, the battery must be charged with a very weak current for a longer time, and finally, the density of the electrolyte must be checked.
* During normal charging, the charging current value is approximately 10% of the battery capacity value (That is, with a battery capacity of 50 Ah, the charging current is approximately 5 A). Estimated charging time is 10 hours.
* Charge the battery until all of its cells actively emit gas and until three measurements taken at intervals of 1 hour show that the electrolyte density and voltage no longer increase.
* After charging, check the electrolyte level, top up with distilled water if necessary.
* Check electrolyte density. If the density of the electrolyte in one cell is noticeably lower (for example, 5 elements show a density of 1.26 g / ml, and in one it is 1.18 g / ml), the battery is defective and should be replaced.
* Allow the gases to escape for about 20 minutes, after which the plugs are screwed in or pressed in.
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