Bosch GAL 18V6-80 Professional Battery Charger User Guide

Quick guide from the manual

The Bosch GAL 18V6-80 Professional is a multi-bay charger designed for Bosch Li-Ion batteries. It features an intelligent charging process that charges batteries sequentially in two cycles: first to approximately 80% capacity, then to 100%. The charger supports a 'Priority Start' function for individual bays.

Charging process

Batteries are charged one after another in two cycles:

• First cycle: All inserted batteries are charged to approx. 80% capacity.
• Second cycle: Batteries are charged from approx. 80% to 100%. This cycle starts once all inserted batteries have reached the 80% threshold.

If a battery is already charged above 80%, it is skipped in the first cycle and charged in the second. If a new battery with less than 80% charge is inserted during the second cycle, it is charged immediately.

Priority Start (Prio button)

Each charging bay has a Prio button (3) to prioritize charging for that specific bay:

• Press once: Prioritizes charging the battery in that bay to approx. 80%.
• Press twice: Prioritizes charging the battery in that bay to 100%.

LED Indicators

The green LED indicator (4) shows the charge status. Continuously lit LEDs indicate the current capacity, while flashing LEDs indicate the capacity currently being charged. A red LED (5) indicates temperature issues or errors.

Troubleshooting

• Red LED (5) flashes (individual bay): Battery not connected correctly, dirty contacts, or defective battery.
• Six red LEDs (5) flash simultaneously: Internal charger error. Unplug and replug the charger. If the error persists, contact Bosch customer service.
• Indicators do not light up: Check mains connection and voltage.

Installation on an L-BOXX

The charger can be mounted on an L-BOXX for transport using the provided L-BOXX adapter (7) and four screws (8) on the bottom of the charger.