Frequently asked questions:

Q: Where do you ship from? How long does delivery take? Do I have to pay any customs taxes?

A: We ship worldwide from a warehouse located in Poland. Delivery time depends on your location and chosen shipping method.

Most customers receive their orders within 5-10 days.

You don’t have to pay any taxes if you live in one of the EU countries.

If you live in a non-EU country, please check your local customs regulations.

Click here for more information about shipping


Q: Why so expensive?????!!!!!!!!!!!! Have you raised your prices???!!!!

AYes, unfortunately there are big problems with 18650 cells supply in 2022 due to the covid hustle and bustle. The cells have become 1.5 times more expensive compared to 2020, so we have to raise the price of the batteries. Another problem is the global shortage of semiconductors, which has doubled the cost of high-power transistors and microcontrollers, and that's why Rita and BMS prices also increased.

Blog

Xiaomi M365/PRO external battery installation tutorial

Xiaomi M365/PRO external battery installation tutorial

It's no secret that many owners of Xiaomi M365 and PRO would like to increase the range and speed of..

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Xiaomi M365 battery repair by BMS replacement

Xiaomi M365 battery repair by BMS replacement

Most battery problems may be solved in less than an hour, no requiring special skills and tools.Xiao..

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Happy BMS: a 9s-15s smart BMS for Xiaomi and Ninebot scooters

Happy BMS: a 9s-15s smart BMS for Xiaomi and Ninebot scooters

Xiaomi and Ninebot electric scooters are of excellent quality, including their batteries. The batter..

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External battery for Xiaomi e-scooters:

Range+speed boost kit for Xiaomi

Range+speed boost kit for Xiaomi

All you need to achieve extra ~30 km of range and increase maximum speed by 20% - "plug an..

380 EUR

Range boost kit for Xiaomi

Range boost kit for Xiaomi

All you need to achieve extra ~30 km of range. No firmware upgrade is required  - "pl..

340 EUR

"Rita" adapter for Xiaomi

"Rita" adapter for Xiaomi

    This device allows you to connect and disconnect an external battery at any ..

64 EUR

12s 44,4V 1,7A charger

12s 44,4V 1,7A charger

Due to the increased voltage, this charger allows you to charge 12s extra batteries.In stock. Next b..

39 EUR

Mounted 2L bag for Xiaomi

Mounted 2L bag for Xiaomi

This is a standard "WildMan 2L" bicycle bag equipped with a 3d-printed plastic mount.The mount match..

39 EUR

36V 12750mAh battery

36V 12750mAh battery

Custom 10s5p battery, based on EVE INR18650-26V cells. Maximum continuous current: 30..

260 EUR

44,4V 10200mAh battery

44,4V 10200mAh battery

Custom 12s4p battery, based on EVE INR18650-26V cells. Maximum continuous curren..

255 EUR

External battery for Ninebot MAX G30:

Range+speed boost kit for Ninebot MAX G30 - medium 2L size

Range+speed boost kit for Ninebot MAX G30 - medium 2L size

All you need to achieve extra ~30 km of range and increase maximum speed by 20% - "plug an..

385 EUR

Range boost kit for Ninebot MAX G30 - medium 2L size

Range boost kit for Ninebot MAX G30 - medium 2L size

All you need to achieve extra ~30 km of range. No firmware upgrade is required  - "pl..

345 EUR

"Rita" adapter for Ninebot MAX G30

"Rita" adapter for Ninebot MAX G30

    This device allows you to connect and disconnect an external battery at any ..

69 EUR

12s 44,4V 1,7A charger

12s 44,4V 1,7A charger

Due to the increased voltage, this charger allows you to charge 12s extra batteries.In stock. Next b..

39 EUR

Mounted 3L bag for Ninebot MAX G30

Mounted 3L bag for Ninebot MAX G30

This is a standard "WildMan 3L" bicycle bag equipped with a 3d-printed plastic mount.The mount uses ..

48 EUR

Mounted 2L bag for Ninebot MAX G30

Mounted 2L bag for Ninebot MAX G30

This is a standard "WildMan 2L" bicycle bag equipped with a 3d-printed plastic mount.The mount match..

39 EUR

36V 12750mAh battery

36V 12750mAh battery

Custom 10s5p battery, based on EVE INR18650-26V cells. Maximum continuous current: 30..

260 EUR

44,4V 10200mAh battery

44,4V 10200mAh battery

Custom 12s4p battery, based on EVE INR18650-26V cells. Maximum continuous curren..

255 EUR

Smart BMS:

Repair BMS for Xiaomi

Repair BMS for Xiaomi

Repair BMS is especially designed to be hardware and software compatible with Xiaomi electronics, so..

49 EUR

Happy BMS for Xiaomi

Happy BMS for Xiaomi

   Happy BMS is especially designed to be hardware and software compatible with Xiaomi and..

69 EUR

Happy BMS for Ninebot G30

Happy BMS for Ninebot G30

   Happy BMS is especially designed to be hardware and software compatible with Xiaomi and..

69 EUR