ENERpower HaiLong II Frame Battery Li-Ion 48V 17.25Ah Pedelec & eBike 35E DIY Conversion Kit

401.70 Inc. 19% Vat.

ENERpower HaiLong II Frame Battery Li-Ion 48V 17.25Ah for Pedelecs & eBikes DIY Conversion Kit, powered by Samsung 35E battery cells.

In stock


Important general information

The 48V (46.8V-48.1V) batteries in Hailong II case, which we assemble, are so-called “Frame Batteries”, which can be fixed to the bike’s frame. The batteries are assembled with plastic cell-holders. Charging is enabled using a 3 pins XLR  plug and discharging is done with a discharge cable with an XT90 plug.

The Hailong II is the largest case of its kind with space for up to 65 Li-ion cells of format 18650, and suitable especially for users, who are looking to save space on the bikes.

The battery is also equipped with a USB socket, which allows you to use it as a power bank to charge your mobile devices (smartphone, tablet etc.) on the road (up to 12W output power).

The BMS (Battery Management System) can somewhat withstand a constant current (22A). Hence this battery is suitable also for motors with up to 1000W.

* For technical reasons we cannot ship Hailong batteries to Italy. We apologize for the inconvenience. 


  • High quality assembling – Made in Germany
  • Assembling Just-In-Time
  • BMS with an integrated balancer
  • BMS with protection against overcharge, deep discharge, over discharge (temperature control)
  • Powered by Samsung INR18650-35E li-ion battery cells
  • Direct from the manufacturer
  • Rechargeable – even after 300 charging cycles 80% of the original capacity is still available.
  • No memory-effect – charge the battery whenever you want
  • Environment friendly according to EU-Guidelines 2002/95/EG (RoHS)

Technical Details

  • Li-ion battery cell: Samsung INR18650-35E
  • Voltage (nominal): (46.8V-48.1V)
  • Capacity: 17.25Ah
  • Energy: approx. 830Wh
  • Configuration: 13S5P
  • Internal resistance: < 75 mOhm
  • Charging voltage: 54.8V
  • End-of-discharge voltage: 39V
  • Maximal charging: 5A
  • Continuous discharge current: 22A = 1050 Watt
  • 10 Min. discharge current: 25A = 900 Watt
  • 5 Sec. discharge current: 35A = 1260 Watt
  • Constant load per cell: approx. 3.7A or 7A in peak load.
  • Charging plug: XLR-3 pins plug
  • Weight: approx. 3.5 Kg.


  • Length: approx. 367 mm
  • Width: 90 mm
  • Height: 111 mm

In the package

  • 48V battery, 17.25Ah
  • Case
  • 2 keys
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