ENERpower Softpack 48V (51.8V) 14S6P 20.70Ah with BMS Pedelec battery (14×6) DIY 35E-LED 3XLR

470.00 Inc. 19% Vat.

ENERpower Softpack battery 48V (14S6P) 20.70 Ah for pedelecs, eBikes DIY rectangular

Important General Information

The 48V (50.2V-51.8.1V) soft pack batteries in 14S format that we manufacture have 2 versions – square and rectangular. The batteries are manufactured in plastic cell brackets. The battery is charged using a 3-Pin XLR connector, discharging is achieved with a discharge cable with an XT90 plug (male). A fuse of 50A in a waterproof mount limits the current drain.

In the square version, 10 cells are used as the longest side (200 mm). We manufacture this type of battery in 14S4P (build 10×6), 14S5P (build 10×7) and 14S6P (build 10×9).

In the rectangular version, 14 cells are used as the longest side (280 mm). We manufacture this type of battery in 14S4P (14×4), 14S5P (14×5) and 14S6P (14×6) formats.

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)
  • Assembled with Samsung SDI, or Sony cells (subject to availability)
  • directly from the manufacturer
  • Rechargeable – After 300 charging cycles maintains 80% of the original capacity
  • No memory effect – charge the battery whenever you want
  • Weight: approx. 4.50 kg.
  • Environmentally friendly according to EU Directive 2002/95/EC (RoHS)

Technical Details

  • Li-ion Cell: Samsung SDI INR18650-35E
  • Voltage (nominal): 48V (50.4V-51.8V)
  • Capacity: 20.70 Ah
  • Energy: approx. 1039 Wh
  • Configuration: 14S6P
  • Set up: 14 x 6
  • Internal resistance: < 75 mOhm
  • Charge voltage: 58.8V
  • Maximum Charging current: 5A
  • End-of-Discharge Voltage: 42V
  • Continuous load current: 35A = about 1800 watts
  • 10 Min. Discharge current: 40A = approx. 2050 watts
  • 5 second discharge current: 45A = approx. 2250watts

Dimensions format 14×6

  • 280 mm length
  • 120 mm-130 mm width
  • 70 mm Height
Weight 3.2 kg
Dimensions 38.5 × 11.0 × 7.5 cm