The recommendations are based on 1 or 2 battery setups within the range of 0 – 5,000W. If you are outside of this, you probably know enough to choose the right amount of battery power for your system. Again, you cannot use Ah capacity to choose the right amount of battery power for a car stereo system… capacity is only important if you are comparing to similar technology batteries. Nobody else has our technology… Stinger is the only one that even comes close…
For example…
If you are buying 110Ah batteries from WalMart, you will need at least 4 of that type/design battery to supply a 4-5kw amplifier. If you are using XS Power batteries, you will only need one 110Ah D3100 to do the same job. Instantaneous output of 1 D3100 to a 5,000W amp will be equal to 4 deep cycle flooded style batteries.
This is to be used as a guide to help you figure out what you need.