[space oddity]

I found that 7Ah was only just adequate and had to be freshly fully charged at that to work well. Really need 17 Ah. Obviously, more power gives opportunity to add other bits and pieces and a large battery can be hooked up to octopus straps to give extreme stability to the rig . I have a big heavy 75 Ah battery which may be overkill, but I can be confident that I have enough juice to handle any bits and pieces I want. With the occy straps attached to the rig, Willie Mason would have a hard time knocking over my setup . You must be careful to not reverse polarity or you will blow your board and have an expensive repair - I know, i have done it .