ENERpower Softpack 48V 13S9P 31.05Ah with BMS Pedelec Battery (13×9) DIY 35E BMS 40A LED 3XLR

625.00 570.00 Inc. 19% Vat.

ENERpower Softpack battery 48V (13S9P) 31.05Ah for pedelecs, eBikes DIY BMS 40A

Important General Information

The 48V (46.8V-48.1V) softpack batteries in 13S format that we manufacture have 2 versions – square and rectangular. The batteries are manufactured in plastic cell brackets. Charging and discharging is done using an output cable with XT90 connection.

In this rectangular version, 13 cells are used as the longest side (260 mm). We manufacture this type of battery in 13S7P (build 13×7), 13S8P (build 13×8) and 13S9P (build 13×9).

The Battery Management System (BMS) is always mounted on the longest side of the battery. At this side the battery is approx. 10 -15 mm thicker.

We manufacture the Softpack batteries with FR4 insulation, flame retardant composites made of epoxy resin and glass fabrics. FR-4 is used, among other things, as an electrically non-conductive carrier material for electrical circuit boards.


  • High-quality manufacturing – made in Germany
  • Assembly just-in-time
  • BMS with an integrated passive balancer
  • BMS with protection against overcharge, deep discharge, over-discharge (temperature monitoring)
  • Manufactured with Samsung SDI
  • directly from the manufacturer
  • Rechargeable – After 300 charging cycles maintains 80% of the original capacity
  • No memory effect – charge the battery whenever you want
  • Environmentally friendly according to EU Directive 2002/95/EC (RoHS)

Technical data

  • Li-ion Cell: Samsung SDI INR18650-35E
  • Voltage (nominal): 48V (46.8V-48.1V)
  • Capacity: 31.05Ah
  • Power: About 1490Wh
  • Configuration: 13S9P
  • Build: 13 x 9
  • Internal resistance: < 75 mOhm
  • Charging voltage: 54.6V
  • End-of-Discharge Voltage: 39V
  • Continuous discharge current: 40A = 1920 watts
  • 10 Min. Discharge current: 45A = 2160 watts
  • Charge: Maximal 10A
  • Weight: About 6 kg.


  • 260 mm length
  • 180 mm-195 mm width
  • 70 mm Height
Weight 6 kg
Dimensions 26 × 19.5 × 7 cm