thank you very much for all of your answers . I have another quick question. As you see , there is 1 house battery in my RV . On the left side (not shown on the picture), there is another space where I can add an additional battery . I understand that I should add the same brand/type/size/age of battery . However, I am on a tight budget so I am planning to buy only 1 new battery and keep the existing one (which is still good) . Both battery will be the same type (deep cycle), but they do not have the same brand/size/age. The new battery's cables will be connecting to the existing battery . So, Red cable of the new additional battery will be connected to the red cable of the existing battery and the Black cable of the new battery will be connected to the black cable of the existing battery. Does anyone see any issues with this ? Thanks in advance for your advice .
thanks
