My knowledge of DC power is limited/non-existent at best. Liam_n_Maggie added two 6 V batteries in a hard case in front of the storage box in front of the T@B. Is it possible to keep the 12 v battery in the storage box and combine it with the two 6 volt batteries for even more battery storage? Thanks
No. You should keep paired batteries the same size/voltage. However, if you could add a battery switch to change between the two 6 volts vs the one 12 volt, maybe that would work?