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Varstrom 36V eBike Conversion Battery for BAFANG Drive System

Varstrom 36V eBike Conversion Battery for BAFANG Drive System

Regular price €243,95 EUR
Regular price Sale price €243,95 EUR
Sale Sold out
Varstrom offers free Shipping.

Product Core Data

36V 15.6Ah Shark Battery:
Rated Volt: 36 (V)
Rated Capacity: 15.6 (Ah)
Cell: 18650 Cell
Install Size: 36.8*9.1*11.1 (cm)
Battery Weight: about 3.5 (kg)
Max Constant Discharge Current: 30 (A)
Peak Current: 60 (A)
Charging Time: 1000

36V 17.4Ah Shark Battery:
Rated Volt: 36 (V)
Rated Capacity: 17.4 (Ah)
Cell: 18650 Cell
Install Size: 36.8*9.1*11.1 (cm)
Battery Weight: about 3.5 (kg)
Max Constant Discharge Current: 30 (A)
Peak Current: 60 (A)
Charging Time: 1000

36V 21.0Ah Shark Battery:
Rated Volt: 36 (V)
Rated Capacity: 21.0 (Ah)
Cell: 18650 LG Cell
Install Size: 36.8*9.1*11.1 (cm)
Battery Weight: about 3.6 (kg)
Max Constant Discharge Current: 30 (A)
Peak Current: 60 (A)
Charging Time: 1000

Shipping Policy

Varstrom Shipping Policy

All orders are processed within 1 or 2 business days (excluding weekends and holidays) after receiving your order confirmation email. You will receive another notification when your order has shipped.


Delivered Duty Paid

All the product you can buy on Varstrom, we have paid the tax. So you don't need to pay extra money for the order.


Varstrom Warehouse

Varstrom had became Bafang Cooperation Brand since 2018. Over the past four years, we have built a very close relationship with Bafang Company. Varstrom has established a lot of warehouse around the word to make sure that all the customer will get their package as soon as possible.

Regions Warehouse No.1 Warehouse No.2 Warehouse No.3
United States Las Vegas (FedEx/USPS/UPS) N/A N/A
United Kingdom Bolton (Hermes/Rooyal Mail) Oldbury (DPD) N/A
European Union German (DPD/DE POST/UPS) France (GLS) Poland (UPS)
Canada Richmond (UPS) N/A N/A
German Bremen (DHL) Neumünster (UPS) N/A
France Gonesse (GLS/La Poste) Amiens (GLS/La Poste) N/A
Poland Bielany Wroclawskie (UPS) N/A N/A
Australia South Granville (Australia Post) Moorabbin (Australia Post) N/A

Varstrom Delivery Time

Once we receive order, we will process the ordered and send the products to the customer from the nearest warehouse. Sometimes the processing time may be extended to a maximum of 2 days if there are many orders processing in the warehouse. Depending on the distance of the region from the shipping warehouse, the express time may take 2 to 8 days. The following table shows 95% of our order delivery schedule for reference.


Regions Delivery Time (National) Delivery Time (International)
United States 3 to 7 business days N/A
United Kingdom 2 to 4 business days N/A
European Union N/A 3 to 8 business days
Canada 3 to 6 business days N/A
German 2 to 4 business days N/A
France 2 to 4 business days N/A
Poland 2 to 4 business days N/A
Australia 3 to 5 business days N/A

Shipping Tracking

Once the product is shipped from the warehouse, the system will automatically send a tracking number to customer, you can use it to check where is the package. If customers cannot find their tracking number, please find us through the contact information and we will help you find where the products are.


Shipping costs are non-refundable.

Our motor kits and batteries require signature confirmation for delivery. If delivery is refused, shipping costs are non-refundable and a 10% restocking fee will be deducted (this will be withheld from any refund).


For returning an item, you will be responsible for paying for your own shipping costs and original shipping costs are non-refundable. For returns of products over $50, we recommend that you use shipping service can be tracked or purchase shipping insurance. We don't guarantee that we will receive your returned item.


We can only guarantee delivery of purchases when there are no changes or modifications during shipment. Any purchases made from our company in which a customer decides on their own accord to make any modifications directly with the shipping company (FedEx or USPS) during shipment (including but not limited to; delivery address changes, hold and or pick up requests), our company is no longer able to guarantee delivery and is not responsible for lost packages. We can only guarantee delivery of orders purchased through our company and shipped to the address which was originally provided at purchase. If any modifications are made by the customer on their own accord during the shipment process we are no longer responsible for any delivery delays or lost packages.


How to Contact Varstrom

Company Address: Room 408B, 4/F, Lippo Sun Plaza, 28 Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong SAR

Email: kong@varstrom.com, ivarstrom@outlook.com, varstrom092021@gmail.com

WhatsApp: +852 5262-0386

Delivery Area
Battery Capacity

Mileage for 36V 15.6/17.4/21.0Ah HaiLong Downtube Battery

Conservative Mileage for 36V 15.6Ah Used on Motors

  • Throttle Mode: 45km (36V/250W), 40km (36V/350W), 36KM (36V/500W)
  • PAS Mode: 90km (36V/250W), 80km (36V/350W), 72KM (36V/500W)

Conservative Mileage for 36V 17.4Ah Used on Motors

  • Throttle Mode: 50km (36V/250W), 45km (36V/350W), 40KM (36V/500W)
  • PAS Mode: 100km (36V/250W), 90km (36V/350W), 80KM (36V/500W)

Conservative Mileage for 36V 21.0Ah Used on Motors

  • Throttle Mode: 60km (36V/250W), 55km (36V/350W), 50KM (36V/500W)
  • PAS Mode: 120km (36V/250W),110km (36V/350W), 100KM (36V/500W)

Battery Installation Measurement

  • Battery and Socket (inch): 14.46*3.54*4.37

File: Hailong_battery_installation_measurement

Suitable Motor

If you want to buy a Varstrom eBike battery as replacement, please know that Varstrom battery can be the power source for the BAFANG UART protocol mid drive conversion kits or BAFANG hub kits. But it is not suitable for BAFANG CAN protocol mid drive motors.

Upgraded Connection Method

Varstrom upgrade battery connector

The new HAILONG battery connector adopts a new design, the pins are no longer the entirety of the connector, but are protected in the connector. The new design can protect the pins from being bent when the bicycle is in vigorous moving, and the gold-plated design also reduces the resistance of the connector, reducing the chance of the connector being burnt.

Battery Management System

  • Overpower Protection
  • Over Voltage Protection
  • Over Current Protection
  • Over Discharge Protection
  • Overcharge Protection
  • Short Circuit Protection
  • Cell Balancing

Anti-theft Safe Lock

Ebery Varstrom Hailong battery has the lock and keys, the lock can help to fix the battery and prevent others from taking the battery, you can use the keys to lock the battery when you install it on the socket and unlock to take the battery for charging.

USB Connector Avaliable

Each Hailong battery is equipped with a USB port, which can charge your mobile phone or other devices. At the same time, you can judge the power of the battery through the indicator light of the battery. 1 Red+3 Green (100%), 1 Red+2 Green (75%), 1 Red+1 Green (50%), 1 Red+0 Green (25%), it means you need to charge the battery.

Other Battery Options

Varstrom also provide other battery for Bafang eBike conversion kits.

Tips for Riding eBike

Increased Range Reduced Range
Low Average Speed High Average Speed
Light Load Heavy Load
Flat/downhill Terrain Uphill Terrain
Narrow Road Tires Wide Knobby Tires
Tailwind Headwind
Sliding Stop and Start
Summer Winter

Package Include

  • 1*eBike Battery
  • 1*Charger
  • 1*XT 60 Cable
  • 1*Waterproof Bag

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