This 52 V 21 Ah battery replaces the original battery of your Dualtron Mini: same voltage, same connectors, same dimensions, to restore the range and performance of a new scooter. It is assembled in our workshop using branded 18650 cells (Samsung, LG, or Molicel depending on availability) and a BMS sized for the machine.
When should you replace your Dualtron Mini battery?
Three signs don't lie: shrinking range (half of the original range or even less), power cuts or voltage sags during acceleration or on hills while the gauge still shows a charge, and a pack that heats up or becomes unbalanced (a cell faults out, the BMS cuts power). A quality pack restores the scooter's original torque and top speed; on a machine that is a few years old, this is often the best money spent.
Specifications
- Nominal voltage: 52 V
- Capacity: 21 Ah, i.e. 1092 Wh
- Cells: Branded 18650 Li-ion (Samsung, LG, Molicel)
- BMS: Charge/discharge management, balancing, thermal protection
- Compatibility: Dualtron Mini
At 21 Ah, this is the highest capacity we fit into the deck of the Mini: range takes a massive leap compared to the original 13-14 Ah, without changing anything else.
Range or Performance?
This Range version prioritizes capacity and lifespan, with a discharge current matched to the original controller. If you have upgraded your controller or are looking for sharper acceleration without power cuts, check out our Performance batteries (high-discharge cells, Bluetooth BMS) for the same model.
French manufacturing, 2-year warranty
All our batteries are assembled in our workshop in France, exclusively with branded cells (Samsung, LG, Molicel). Each pack is equipped with a BMS that manages charge, discharge, cell balancing, and thermal protection. The price includes the pack, power and charge connectors; the charger is sold separately. Delivery to mainland France, Corsica, and the European Union only (regulated lithium transport). 2-year warranty.
Frequently Asked Questions
Is the original charger compatible?
Yes, if its voltage matches (52 V). On fast-charge compatible packs, a more powerful charger significantly reduces charging time; ask us for advice.
Is a break-in period required?
No. We simply recommend a few full cycles at the beginning so the BMS can calibrate the balancing, and avoiding storing the pack at 100% or 0% for weeks at a time.
Can I install it myself?
If you know how to open the deck and handle power connectors, yes: the battery arrives with its connectors ready. Otherwise, our workshop offers installation (installation service).
