Bosch Kl 1206 Manual May 2026

Bosch KL 1206 is a vintage battery charger typically used for lead-acid batteries. While official digital archives for this specific model are limited on the main Bosch site

, you can find related documentation through the following resources: Manual & Technical Details User Manual Access

: You can view or download the manual via community-shared documents on Google Docs or through professional tool archives on Functionality Bosch Kl 1206 Manual

: The device is designed to charge 12V batteries and often features a variable charging rate. It is commonly used for automotive and marine battery maintenance. Operating Instructions Ensure the battery terminals are clean before connecting. Connect the clamp to the positive (+) terminal and the clamp to the negative (-) terminal.

Plug the charger into a power outlet only after the clamps are securely attached. Bosch Official Support Bosch KL 1206 is a vintage battery charger

For newer models or to search for alternative manuals using a specific E-NR (model number), visit the official Bosch Instruction Manuals search page. Bosch Home troubleshooting steps for a specific issue you're having with the charger? Bosch Kl 1206 User Manual - Facebook

Based on the model number KL 1206, you are likely looking for information on the Bosch Keo Cordless Garden Saw. Do not use with Li-ion or LiFePO4 batteries

Here is a breakdown of the key information found in the manual for the Bosch Keo (Model KL 1206).

6. Safety Warnings (Critical)

• Do not use with Li-ion or LiFePO4 batteries – the KL 1206 has no voltage regulation; Li-ion will be overcharged and catch fire.
• Never leave charging unattended – especially with old NiCd packs prone to venting.
• The charger case is not double-insulated (Class I) – ensure mains earth connection is intact if the unit has a grounded plug (some versions do).
• After use, unplug from mains – the transformer draws idle current (~2–3W) and stays warm.

Issue 3: The Power Cord is Frayed

• Diagnosis: The strain relief fails on old tools.
• Manual Fix: The KL 1206 uses a simple two-wire cord (H05VV-F 2x0.75mm). Open the housing (4x T10 screws). Cut the damaged wire back. Re-crimp the spade connectors. The manual includes a "Repair Index" showing the wire path must cross behind the switch to avoid rotor friction.

Issue 1: The Sander Vibrates Violently

• Diagnosis: The counterweight is misaligned or the rubber mounting feet have perished.
• Manual Fix: Turn off the unit. Remove the sanding pad. Inside the gear housing, there is a metal counterweight. Ensure it is tightened to the eccentric cam with no play. The manual lists torque specs: 2.5 Nm.

A. Technical Specifications (from page 2 of the manual)

| Specification | Value | | :--- | :--- | | Rated power input | 720 W | | No-load speed | 16,500 rpm | | Planing width | 82 mm | | Max planing depth | 6 mm | | Rebate depth | 0-18 mm | | Weight (without cable) | 3.6 kg | | Protection class | II (Double insulated) |

2. Important Safety Warnings

• Indoor use only. Do not expose the charger to rain, water, or high humidity.
• Check voltage. Ensure mains voltage matches the rating on the charger label (e.g., 230V or 120V).
• Charge only Bosch 12V NiCd/NiMH batteries. Do not charge Lithium-Ion (Li-Ion), non-rechargeable, or other brand batteries – risk of fire or explosion.
• Ventilation required. Keep cooling slots unobstructed. Do not cover the charger during use.
• Do not charge damaged batteries. If a battery is leaking, swollen, or physically broken, dispose of it properly and do not attempt to charge.