Charger for e-bike 36V/42V 2A with Bosch 3‑pin plug QOLTEC

Charger for e-bike 36V/42V 2A with Bosch 3‑pin plug QOLTEC is a mains charger designed to supply compatible electric bicycle battery systems with a steady 2 A charging current. The unit supports both 36 V and 42 V battery voltages and connects directly via a Bosch 3‑pin plug to e-bikes that accept this standard. Its compact housing and straightforward plug‑in operation make it suitable for everyday home charging and for carrying on trips where a reliable, maintenance-capable charger is required.

Advantages

The charger provides a constant 2 A output current tailored for regular charging cycles and battery maintenance, helping to keep battery state healthy when used as recommended. The integrated Bosch 3‑pin plug ensures direct and secure connection to compatible e-bike sockets without additional adapters. The compact, lightweight construction simplifies storage and transport, and the mains-powered design enables use wherever standard AC power is available.

Suitable for

• Charging 36 V and 42 V e-bike battery packs that accept Bosch 3‑pin connections
• Routine at-home charging and overnight charging sessions
• Battery maintenance and trickle charging to preserve charge level during storage
• Carrying as a travel charger for trips where a compatible AC outlet is available

Key specifications

• Output voltage compatibility: 36 V and 42 V battery systems
• Output current: 2 A (constant)
• Connector type: Bosch 3‑pin plug for direct connection
• Power source: mains (AC) input
• Form factor: compact, lightweight charger housing suitable for portable use

How to use

To charge, connect the charger to a standard AC mains outlet and insert the Bosch 3‑pin plug into the matching socket on the e-bike or battery pack. Ensure the connector is fully seated and that the bike is powered off if recommended by the bike manufacturer. Allow the charger to complete its charging cycle; charging time depends on battery capacity and state of charge. After charging is finished, disconnect the plug from the bike first and then unplug the charger from the mains.

Usage recommendations

Use the charger in dry, well‑ventilated indoor environments and avoid exposure to moisture, extreme temperatures, and direct sunlight. Always follow the battery and e‑bike manufacturer's instructions for charging, and verify compatibility with the Bosch 3‑pin plug before use. For long‑term storage of batteries, use periodic maintenance charging at the rated current to help preserve battery health.