Ausom K20 and Ausom K20 PRO Ultra-Fast Charger 48V - 54.6V 5A

Ausom K20 and K20 Pro Ultra-Fast Charger – 48V (54.6V – 5A) – Active Cooling

This 5A ultra-fast charger for the Ausom K20 and K20 Pro delivers a 54.6V output. It is designed for the 48V (13S) original lithium-ion battery configurations detailed below.

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

Its 5A current is the highest among the versions offered in this selection. It significantly shortens charging time compared to the 2A and, where available, the 4A models.

This charger is equipped with active cooling to promote efficient heat dissipation during long charging sessions. This version features a plastic casing.

Technical specifications

• Output voltage: 54.6V DC.
• Charging current: 5A.
• Battery type: 48V (13S) lithium-ion.
• Connector: original 8 mm Ausom RCA connector.
• Casing: plastic.
• Cooling: Active ventilation.
• Estimated charging time Ausom K20 / Laluz 2 (13.5 Ah): ≈ 2h 30m.
• Estimated charging time Ausom K20 Pro (18 Ah): ≈ 3h 30m.
• Weight: 0.6 kg.
• Built-in protections: overvoltage, overcurrent, overheating, and short-circuit.
• LED indicator: red = charging / green = charge complete.
• Contents: Source’IT charger and power cord.

A charger adapted for the Ausom K20 and K20 Pro

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

• 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 nominal 48V 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 product page is intended for the original configurations listed, using the connector pictured.

Benefits of this 5A version

• Output regulated at 54.6V for the corresponding 48V configuration.
• Original 8 mm Ausom RCA connector as visible in the photos.
• Ultra-fast charging to reduce waiting time compared to the 2A version.
• Active cooling to exhaust internal heat.
• Plastic casing and built-in 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 products are distinguished by their charging current, casing, and estimated charging time. The 2A is suitable for standard charging, the 4A for fast charging, and the 5A for even 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 durations are estimates for a 0 to 100% charge using 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 condition of the battery will cause the actual time to vary.

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

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

Safety and reliability

Regulation at 54.6V and electronic protections accompany the charging of the corresponding 48V battery. Active cooling cools the charger; it does not cool the battery directly. Keep the vents clear and allow a warm battery to cool down after use.

FAQ – Ausom K20 / K20 Pro 5A Charger

Is this charger suitable for my scooter?

It is compatible with the models and batteries listed in the compatibility section, using the original 8 mm Ausom RCA connector pictured. Please verify the exact model, voltage, and plug of your version before choosing.

How long does charging take?

Ausom K20 / Laluz 2 13.5 Ah: approximately 2h 30m with this 5A charger. Ausom K20 Pro 18 Ah: approximately 3h 30m with this 5A charger. A partially charged battery will require less time.

Does the charger have a fan?

Yes. This 5A version features 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 another charging location. The simultaneous use of two chargers depends on the ports and the total current accepted by the scooter version; it cannot be assumed simply because there are two ports.

What is the difference compared to other power ratings?

The 5A reduces charging time compared to the 2A standard. The list and links above allow you to compare other versions based on your battery's exact capacity.

Warranty, shipping, and support

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

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

Photos non-contractual – Source’IT.