Safety Precautions When Charging Your
Vehicle's Battery
Keep in mind that any battery charging process involves supplying a voltage higher than the
nominal 12V to the battery and, consequently, to the vehicle's electrical system. This can damage
the vehicle's electronic equipment and any additional equipment installed on your vehicle.
Do not use battery chargers or jump-start devices to charge the battery directly on the
vehicle without disconnecting the battery terminals from the vehicle's electrical system in
the following modes:
High-current rapid charging modes ("boost" modes or similar).
Various START modes designed for engine starting.
24V battery charging modes.
Do not use jump-start devices to start the engine without a connected battery or with a
faulty battery (such as short circuits in cells, plate damage, etc.).
Avoid using faulty battery chargers, 24V chargers, or devices not intended for battery
charging, such as welding inverters.
All of the above devices and modes can lead to uncontrolled delivery of high voltage (up to 25V to
60V) to the vehicle's electrical system, potentially damaging the electronic components of the
security system and the vehicle's equipment.
Using jump-starting methods to charge the battery is not recommended. Even described "safe"
jump-start methods are only safe for the donor vehicle. Connecting and disconnecting a fully
discharged or faulty battery on your vehicle with the engine running can damage your vehicle's
electronic devices and security system due to voltage spikes caused by connecting and
disconnecting the battery.
In the event of using the aforementioned devices and modes, the responsibility for damage to
electronic equipment lies with the vehicle owner.
Before charging, the battery terminals must be disconnected from the vehicle's electrical system.
Only then can you begin the battery charging process. After charging, reconnect the battery to the
vehicle's electrical system.
This necessity arises because without measuring devices, you cannot determine the condition,
state, or reason for battery discharge (such as internal short circuits or breaks). Connecting a
charging device to a faulty battery poses a risk of damaging the vehicle's electronic equipment and
security system due to increased voltage.
Follow safe battery charging procedures!
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