Golf cart
Documentation for the golf cart batteries made by Battkomp AS in 2022-2023 using second life VW e-Golf battery modules.
Concept
Problem The car originally had 6 pcs of 8V deep cycle lead acid batteries: Trojan T875. They are...
Bill of materials
Quantity Price per unit w/o MVA VW e-Golf big module 3 20...
Prototype building
Cleaning Building The 2nd generation VW modules The smart modules do not show the ...
Plugs
The original chargers used the Lester 21486 connector. This connector has three pins, and is real...
Cutting the main boards
The main boards were made of 18mm thick pine boards cut on a CNC mill at Fellesverkstedet. Painte...
BMS settings
The BMS is a Daly Smart BMS with Bluetooth, Li-ion 12S 80A. One must connect to the BMS via th...
Troubleshooting
You find yourself with one of these batteries and it just doesn't work? Let's go step by step. Yo...
VW e-Golf modules, 2nd generation, 111 Ah
Small module Pinout: B1 = pin 7 B2 = pin 3 Temp1 = pin 6 Temp 2 = pin 1 There is no groun...