Ninebot G3E MAX and Ninebot G3D MAX charger

Ninebot G3E MAX / G3D MAX charger – 48V (54.6V) 2A – With active ventilation

54.6V – 2A charger specially designed for Ninebot Segway G3E MAX and G3D MAX electric scooters equipped with a 48V Li-ion (13S) battery. This Source'IT charger ensures a complete, stable and secure charge thanks to its active ventilation cooling. Ideal for replacing the original charger or having a second charger at home or in the office.

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🔧 Technical specifications

• Output Voltage: 54.6V DC (full charge of a 13S pack at 4.2V per cell)
• Charging current: 2A
• Connections: Ninebot G3E MAX and G3D MAX connector
• Cooling: active ventilation
• LED indicator: red = charging / green = charging complete
• Built-in protections: overvoltage, overload, overheating, short circuit, reverse polarity
• Compatibility: Ninebot Segway G3E MAX and G3D MAX (48V – 13S Li-ion)

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📌 Original 53.6V vs. 54.6V: Why it matters

The original chargers supplied with the Ninebot G3E MAX and G3D MAX are often set to ≈ 53.6 V instead of 54.6 V. This limit is intended to prevent a battery stored immediately after charging from remaining at 100% for too long. However:

• A battery charged to 53.6V only reaches 95% of its usable capacity — so you lose some of your range.
• BMS only balances cells properly at maximum voltage (around 54.6 V). At 53.6 V, balancing remains partial, which in the long run leads to imbalances and premature shutdowns .
• Charging to 100% will not damage the battery if you use the scooter shortly afterward. Only prolonged storage at full charge should be avoided.

A 54.6 V Source'IT charger therefore allows you to recover 100% of useful capacity , completely rebalance the cells and preserve the lifespan of your Ninebot battery.

Tip: Fully charge to 54.6V before each ride. For long-term storage, keep the battery between 30% and 60% .

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❓ FAQ – Ninebot G3E MAX / G3D MAX (48V – 54.6V 2A)

➡️ 53.6V or 54.6V: what’s the difference?

53.6V (original charger) keeps the battery slightly under full charge to limit wear during storage, but reduces autonomy and prevents complete balancing. Conversely, 54.6V (nominal voltage of a 13S pack) allows a full charge and perfect balancing , essential to avoid internal imbalances in the BMS.

➡️ Can I use a 54.6V charger instead of the original one?

Yes, it's safe. The Source'IT charger complies with CE standards and delivers the exact voltage required for 48V (13S) lithium batteries. It ensures a complete, safe, and regulated charge.

➡️ Is 2A suitable for my battery?

Yes. 2A is the ideal current for 48V/13S packs: gentle charging, minimal heating, and optimal longevity. For faster charging, a 4A version is also available.

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

Not necessarily. Once the LED turns green, the charger switches to trickle mode: the BMS continues to balance the cells. Leave the charger connected for an additional 30 to 60 minutes every now and then for a perfectly balanced charge.

➡️ Typical charging time

At 2A : approximately capacity (Ah) ÷ 2 hours. Example: 12.5 Ah battery ≈ 6 hours full charge.

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📦 Delivery & Warranty

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

*Non-contractual photos – Source'IT.