Bosch - Kl 1208 Battery Charger Manual
The (also identified by part number 7 780 301 117 or 7 780 301 144 ) is a classic "Kleinlader" (small charger) designed for lead-acid batteries. Below are the essential operating instructions and safety guidelines from the official Bosch Classic manual . Quick Setup Guide
On some versions, this lights up for batteries between 24 and 66 Ah to indicate status.
Indicates the battery is empty and drawing a strong charge.
to the negative battery terminal or a clean metallic point on the vehicle chassis away from the battery. Plug the charger into a standard mains outlet. Monitor the Ammeter:

