Ausom K20 and Ausom K20 PRO 48V - 54.6V 4A Fast Charger

Ausom K20 and K20 Pro Fast Charger – 48V (54.6V – 4A) – Active Cooling

This 4A fast charger for Ausom K20 and K20 Pro delivers a 54.6V output. It is designed for the original 48V (13S) lithium-ion battery configurations detailed below.

It uses the original Ausom 8mm RCA connector shown in the photos, in order to plug directly into the corresponding charging port of your electric scooter.

Its 4A current reduces charging time compared to the standard 2A version. It is suitable for regaining range more quickly between two trips.

This charger is equipped with active cooling that promotes efficient heat dissipation during long charging sessions. This version has a plastic casing.

Technical specifications

• Output voltage: 54.6V DC.
• Charging current: 4A.
• Battery type: 48V (13S) lithium-ion.
• Connector: Original Ausom 8mm RCA connector.
• Casing: Plastic.
• Cooling: Active Cooling.
• Estimated charging time Ausom K20 / Laluz 2 (13.5 Ah): ≈ 3h 15m.
• Estimated charging time Ausom K20 Pro (18 Ah): ≈ 4h 30m.
• Weight: 0.6 kg.
• Integrated protections: overvoltage, overcurrent, overheating, and short-circuit.
• LED indicator: red = charging / green = charging complete.
• Contents: Source’IT charger and power cord.

A charger adapted to Ausom K20 and K20 Pro

The chargers in this selection correspond to the Ausom K20 and Laluz 2 in 48V 13.5 Ah, as well as the Ausom K20 Pro in 48V 18 Ah. Their 8mm RCA connector is distinct from the 3-pin red connector used on other Ausom families.

• Ausom K20 / Laluz 2: 48V 13.5 Ah (648 Wh) lithium-ion battery.
• Ausom K20 Pro: 48V 18 Ah (864 Wh) lithium-ion battery.

The 48V nominal voltage refers to the battery; the 54.6V voltage corresponds to its maximum charging voltage. The choice of charger also depends on the connector and its wiring. This listing targets the original configurations listed, with the photographed connector.

The benefits of this 4A version

• Output regulated at 54.6V for the corresponding 48V configuration.
• Original Ausom 8mm RCA connector visible in the photos.
• Fast charging to reduce waiting time compared to 2A.
• Active cooling to exhaust internal heat.
• Plastic casing and integrated electronic protections.
• 2-year warranty and Source’IT technical support.

Comparing Ausom K20 and K20 Pro chargers

The versions in this family deliver the same final voltage of 54.6V. The charging current, the casing, and the estimated time distinguish the products. 2A is suitable for standard charging, 4A for fast charging, and 5A for shorter charging times.

Ausom K20 / Laluz 2 – 13.5 Ah

• 2A standard: ≈ 6h 45m
• 4A fast: ≈ 3h 15m
• 5A ultra-fast: ≈ 2h 30m

Ausom K20 Pro – 18 Ah

• 2A standard: ≈ 9h
• 4A fast: ≈ 4h 30m
• 5A ultra-fast: ≈ 3h 30m

These times are estimates for a 0 to 100% charge with a single charger, calculated by dividing the battery capacity in Ah by the charging current in A, then rounding down to the nearest quarter hour. The starting level, temperature, and battery condition will cause the actual time to vary.

• Ausom K20 and K20 Pro 48V – 54.6V 2A Standard Charger
• Ausom K20 and K20 Pro 48V – 54.6V 4A Fast Charger
• Ausom K20 and K20 Pro 48V – 54.6V 5A Ultra-Fast Charger

Find all Ausom K20 and K20 Pro chargers to compare versions and check their photos.

Safety and reliability

The 54.6V regulation and electronic protections accompany the charging of the corresponding 48V battery. The active cooling cools the charger; it does not directly cool the battery. Keep the openings clear and let a hot battery cool down after use.

FAQ – Ausom K20 / K20 Pro 4A Charger

Is this charger suitable for my scooter?

It matches the models and batteries listed in the compatibility section, with the original Ausom 8mm RCA connector photographed. Check your version's exact model, voltage, and plug before choosing.

How long does charging take?

Ausom K20 / Laluz 2 13.5 Ah: about 3h 15m with this 4A charger. Ausom K20 Pro 18 Ah: about 4h 30m with this 4A charger. A partially charged battery takes less time.

Does the charger have a fan?

Yes. This 4A version has Active Cooling and a plastic casing. The fan may be audible during charging.

Can I keep it as a second charger?

Yes, to have a charger in a different charging location. Using two chargers simultaneously depends on the ports and total current accepted by your scooter version; it cannot be inferred solely from the presence of two sockets.

What is the difference compared to other power levels?

The 4A reduces charging time compared to the 2A standard. The list and links above allow you to compare other versions for your exact battery capacity.

Warranty, shipping, and support

• 2-year warranty on the Source’IT charger.
• Shipping within 24/48 hours from France.

Need a compatibility check? Write to contact@source-it.fr with the exact model, a photo of the charging port, and the battery information.

Photos non-contractual – Source’IT.