What are you trying to accomplish? If you want a spare battery bank, connect the negatives together, and get a SPST switch to be able to switch between the positive poles on the two banks. Another way is to get a DPDT switch and switch both the positive and the negative poles. If you want more current capacity, just connect the two positives together and the two negatives together. Nothing else has to change.
Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR On Mon, Jul 4, 2022 at 6:41 AM Hoyt, Mike via CnC-List < cnc-list@cnc-list.com> wrote: > Actually is for an RV but I can think of no better place to get answer to > this type of question than this list. > > > > Came with one group 27 deep cycle battery. Wish to add a second and have > been told that nothing needs to change re the charging systems, etc … What > is involved in adding a second group 27 battery? > > > > Thanks > > > > Mike Hoyt > > Persistence > > Halifax, NS >
