Kl 1208 Battery Charger Manual — Bosch

Lead-acid batteries release explosive hydrogen gas during charging. Never charge a battery in a sealed container or poorly ventilated garage.

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For detailed schematics or official replacement parts, you can search for archived documentation on platforms like or specialized automotive forums. specific technical specifications like the fuse rating or maximum amp output for this model? Bosch C-Line Battery Charger bosch kl 1208 battery charger manual

Connect the Bosch KL 1208 to a grounded AC power outlet. 4. Reading the Ammeter

It can act as a battery test indicator for units ranging from 24 to 66 Ah Versatility: This link or copies made by others cannot be deleted

Connect the Bosch KL 1208 power cord to a standard 230V grounded AC outlet. Step 4: Monitor the Charging Process

The battery likely has a short-circuited cell. It cannot reach its peak voltage to push back against the charger's current. If the battery becomes excessively hot to the touch or smells like sulfur (rotten eggs), unplug the charger immediately. The battery must be replaced. The Charger Vibrates or Hums Loudly Try again later

The analog gauge on the front of the Bosch KL 1208 displays the charging current in Amps:

Slide the Bosch 12V battery into the charging bay. It should click into place. The battery will only insert one way (keyed design).

Attach the Black clamp to the negative terminal (or a solid metal part of the vehicle chassis away from the battery, if the battery is still in the car).

Store the unit in a dry, dust-free environment protected from freezing temperatures.