Yes. Common standard battery units of any size wired in parallel. Its been used successfully for over a century and half on billions of applications that in the majority of applications used nothing more than basic constant voltage sources to maintain them.@crutschow and tcmtech, may be wrong but ,think the two of you are talking different animals here. Cruts - - cells, all lead acid batteries I'm aware of are made up of series CELL's in one case making up a battery. tcm - - aren't you talking parallel BATTERIES of series cells?