Brand: BOSCH
Category: Battery Charger
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for AL 36V-20
Uploaded: April 20, 2026, 7:45 p.m.
Manual Publish Date: 2022-08-22
Warranty Information
Refer to your local Bosch service center for warranty inquiries and service.
- Read all safety and general instructions.
- Only use the charger if you can fully evaluate all functions and carry them out without restrictions, or if you have received corresponding instructions.
- This charger is not intended for use by children or persons with physical, sensory or mental limitations or a lack of experience or knowledge.
- Only charge Bosch Li-ion batteries with a capacity of 2.0 Ah or more.
- Use the charger in enclosed spaces and do not expose it to wet conditions.
- Keep the charger clean.
- Always check the charge, including the cable and plug, before use.
- Do not operate the charger on an easily ignited surface or in a flammable environment.
- Do not cover the ventilation slots of the charger.
- Recharge only with the charger specified by the manufacturer.
Troubleshooting and error codes
| Problem | Indicators do not light up | Battery is not being charged |
|---|---|---|
| Cause | Plug socket, mains cable or battery charger defective | The charger has identified an internal error. |
| Corrective measure | Check the mains voltage. If necessary, have the charger checked by an authorised after-sales service centre. | Ensure that all batteries are fully inserted. Remove the mains plug and reinsert. If the error occurs again, have the charger checked by an authorised after-sales service centre for Bosch power tools. |