ENGWE L20 SE Electric Bike Fast Charger 36V-42V 4A

ENGWE L20 SE Electric Bike Fast Charger – 36V (42V – 4A) – Active Cooling

This 4A fast charger for the ENGWE L20 SE provides a 42V output and is designed for this electric bike equipped with its original 36V 15.6Ah lithium-ion battery.

It is available with either the 8mm RCA connector or the 5.5mm Jack connector, as shown in the photos. Select the variant that exactly matches your bike's charging port.

With its 4A charging current, this model is suitable as a replacement or secondary charger, with an estimated time of approximately 4 hours from 0 to 100% for the reference battery.

This charger is equipped with active cooling that promotes efficient heat dissipation during long charging sessions.

Technical specifications

• Output voltage: 42V DC (36V lithium-ion battery – 10S)
• Charging current: 4A
• Compatible battery: ENGWE L20 SE – 36V 15.6Ah
• Connector: 8mm RCA or 5.5mm Jack depending on the variant
• Estimated charging time: approximately 4 hours from 0 to 100%
• Casing: plastic
• Cooling: Active Cooling
• Integrated protections: overload, overvoltage, overcurrent, overheating, and short-circuit
• LED indicator: red = charging / green = charge complete
• Weight: 0.6 kg
• Contents: Source’IT charger and power cord

Charger specially designed for the ENGWE L20 SE

The ENGWE L20 SE uses a 36V 15.6Ah lithium-ion battery. Its maximum charging voltage is 42V.

The 8mm RCA and 5.5mm Jack variants use two different plugs. Compare your bike's port with the photo associated with each variant before ordering.

Advantages of the ENGWE L20 SE 42V 4A charger

• Dedicated compatibility with the ENGWE L20 SE
• Two connector variants illustrated separately
• Voltage regulated at 42V
• 4A fast charge – approximately 4 hours
• Active cooling to limit internal temperature
• Integrated electronic protections
• 2-year warranty
• Fast shipping within 24/48 hours from France

Available charging speeds

For the ENGWE L20 SE, Source’IT offers:

• 2A Charger: approximately 8 hours
• 4A Fast Charger: approximately 4 hours

The times are estimates calculated based on the reference capacity. They vary according to the level of discharge, temperature, battery condition, and current reduction at the end of the charge.

View all ENGWE L20 SE chargers or the ENGWE charger collection.

Safety and reliability

The charger is calibrated for a 36V lithium-ion battery and delivers a stable maximum voltage of 42V. Its electronic protections monitor the charge during every cycle.

FAQ – ENGWE L20 SE 36V / 42V – 4A Electric Bike Charger

Is this charger compatible with my ENGWE L20 SE?

Yes, when used with the original 36V 15.6Ah battery and the connector variant that matches your charging port.

Which connector should I choose?

Choose 8mm RCA for the round RCA plug or 5.5mm Jack for the cylindrical Jack plug. Each variant shows its own photo.

How long does a full charge take?

Expect approximately 4 hours from 0 to 100% for the reference battery.

Does the charger have a fan?

Yes. This version has active cooling.

Can I use it as a secondary charger?

Yes. It is suitable as a replacement or secondary charger.

Warranty and shipping

• Fast shipping within 24/48 hours from France
• 2-year warranty

Support

Need a compatibility check? Email us at contact@source-it.fr with your bike model and a photo of the port.

Non-binding photos – Source’IT.