Xiaomi SCOOTER 4 Ultra electric scooter charger

Xiaomi Scooter 4 Ultra Charger – 48V (54.6V) 2A – With ventilation

54.6V – 2A charger for Xiaomi Scooter 4 Ultra electric scooter ( 48V Li-ion battery – 13S ). This ventilated model offers stable, fast and secure charging thanks to its active cooling system and heat dissipation housing. Ideal for replacing the original charger or having a second charger at home or at work.

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🔧 Technical specifications

• Output voltage: 54.6V DC (end of charge of a 13S pack at 4.2V/cell)
• Charging current: 2A
• Connections: Specific connector for Xiaomi Scooter 4 Ultra
• Cooling: active ventilation – plastic housing
• Indicator: Red LED = charging / Green = end of charging
• Protections: overvoltage, overload, overheating, short circuit, polarity reversal
• Compatibility: Xiaomi Electric Scooter 4 Ultra (48V – 13S)

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📌 Original 53.6V vs. 54.6V: Why it Changes Everything

The original charger of the Xiaomi Scooter 4 Ultra is often limited to 53.6V . This choice is intended to prevent the battery from remaining at 100% for a long time when stored, but in practice:

• At 53.6V , you are not taking advantage of 100% of the battery's useful capacity ;
• The BMS does not reach the full balance zone;
• Over time, this can lead to cell imbalances or even premature shutdowns under load.

On the other hand, a 54.6V charger allows:

• a full charge and precise balancing ;
• better autonomy ;
• increased battery life over the long term.

Tip: Use the 54.6V charger for full charges before riding. For storage, keep the battery between 30% and 60% .

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❓ FAQ – Xiaomi Scooter 4 Ultra (48V – 54.6V 2A)

➡️ What is the difference between 53.6V and 54.6V?

53.6V slightly reduces the final charge to preserve the battery at rest, but you lose useful capacity and full balancing does not take place. 54.6V corresponds to the full voltage of a 13S Li-ion pack: this is the optimal value to restore total capacity and guarantee cell stability .

➡️ Can I alternate between the two chargers?

Yes, occasionally. To maintain good balance:

• Do a full charge to 54.6V every 2 to 3 weeks ;
• Leave the charger connected for 30 to 60 minutes after the green for the BMS maintenance phase.

➡️ Is 2A enough?

Yes. 2A is the standard and recommended current for the Xiaomi 4 Ultra's 48V/13S chemistry. It guarantees safe, steady charging without excessive heating.

➡️ Good charging practices?

Charge before your journey. For extended periods of time, store the battery at 40% to 60% capacity and fully charge it every 2–3 weeks to maintain balance.

➡️ Should I unplug as soon as the LED turns green?

Not necessarily. The red → green transition indicates the end of the main charge, but the BMS continues to balance. Leave the charger connected for another 30 to 60 minutes for complete balancing.

➡️ Typical charging time?

Varies depending on battery capacity: at 2A , count approximately capacity (Ah) ÷ 2 hours (e.g.: 12 Ah ≈ 6 h). Final balancing can extend the duration by 30 to 45 minutes.

➡️ Compatibility

This model is intended for the Xiaomi Scooter 4 Ultra with its specific connector . However, it is compatible with the following models: Xiaomi 4 Pro 2nd Gen (GEN2) , Xiaomi 4 Ultra , Xiaomi 5 , Xiaomi 5 Pro , Navee S65 , Navee N65i , Navee S40 , Navee S60 and Navee ST3 Pro .

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📦 Delivery & Warranty

• Fast shipping: 24/48 hours (France & Europe)
• 2-year warranty – each charger is individually tested before shipping
• Compatibility support: contact@source-it.fr

*Non-contractual photos – Source'IT.