ENERpower Softpack 48V 13S4P 13.8Ah BMS in Roswheel Bag

327.60 Inc. 19% Vat.

ENERpower Softpack Battery 48V (13S4P) 13.8Ah for Pedelecs, eBikes in Roswheel Attack Bag.

Only 1 left in stock

Important general information

The 48V (46.8V-48.1V) batteries in softpacks in format 13S, which we assemble, have 2 formats – square and rectangular. The batteries are assembled with cells-holders made of plastic.

Charging is enabled with a DC round plug (5.5 mm / 2.5 mm); discharging is enabled with a discharge cable with XT90 connector. A safety fuse of 30A in a water resistant holder limits the current rate.

In this version, 13 cells are used as the longest side (260 mm).
The installment of the BMS (Battery Management System) is being done so that the battery will fit easily in the Roswheel bag.

The softpack batteries are assembled with FR4 isolation, inflammable and flame-retardant composites consisting of epoxy resin and fiberglass cloth. FR-4 is used, inter alia, as an electrically non-conductive carrier material for electrical printed circuit boards.

Highlights – Battery

  • High quality assembling – Made in Germany 
  • Assembling Just-In-Time
  • BMS with an integrated passive balancer
  • BMS with protection against overcharge, deep discharge, over discharge (temperature control)
  • Assembly with battery cells from Samsung SDI or LG Chem (depending on availability)
  • 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
  • Weight: approx. 2.85 Kg
  • Environment friendly according to EU-Guidelines 2002/95/EG (RoHS)

Technical Details – Battery

  • Li-ion battery cell: Samsung SDI INR18650-35E
  • Voltage (nominal): 48V (46.8V-48.1V)
  • Capacity: 13.80Ah
  • Energy: approx. 670Wh
  • Configuration: 13S4P
  • Built:  13 x 4
  • Internal resistance: < 75 mOhm
  • Charging voltage: 54.6V
  • End-of-discharge voltage: 39V
  • Continuous discharge current: 20A = 960 Watt
  • 10 seconds 30A: approx. 1440 Watt


  • Length: 280 mm length
  • Width: 100 mm
  • Heoght: 70 mm

Roswheel Attack Bag

  • Waterproof
  • 6x Velcro fasteners allow the bag to be fixed at any place
  • Suitable for eBike-batteries up to 5 Kg.


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