miketoronto

Any answers to this thread? I too have a first generation Dack but no batteries. It has 4 wires from the batteries to the switch so not sure what was in the battery pack. 2 6v or 2 12 volt . When the charger is switched into the circuit the positve 12 volt goes straight to the 2 reds and the 0 volt to the 2 blacks . If it was 2 6volt they'd have to be in series so how come 4 wires to the switch unless the two blacks go to the remaining black terminal and the 2 reds to the remaining +ve terminal. Very confusing unless Dack couldn't source a single battery small enough to fit? Thnx in adance, Mike Not sure but from a more detailed analysis of the wiring it appears the board requires 24 V . In the charge position the 2 reds and the 2 blacks have the 12 v applied to them to the 2 separate batteries which must be 12v each. When in the run position the batteries are put in series to the board with the floating ground to the board connected to the red of one battery and the 'ground' of the other. Maybe someone can confirm this before I proceed. Tnx .