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10-08-2013, 08:32 AM
- Join Date
- Jul 2009
- Ithaca, NY
The simple answer is: you can't use a 3-bank common ground charger to charge your E20 battery bank, assuming that the standard battery interconnections are in place.
You need a charger whose 3 banks are totally independent, as is the case with the NOCO Gen3 (and other) charger. That lets you "stack" the 3 outputs to match the battery interconnections. Each output sees just the 12v corresponding to its pair of 6v batteries. With the common ground, the pairs would have 12v, 24v, and 36v values (relative to that common ground), and the charger is not designed to support that configuration.
I know of someone who *is* using a common ground charger, but he had to install special wiring (hefty plugs and sockets) so that he can reconfigure the batteries to match what the common ground charger needs.
Larry Chace, Ithaca, NY I-5 and E15
Last edited by EtnaInst; 10-08-2013 at 03:23 PM.
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