The plate size is critical more for discharge share than charge sharing. and of course the age.. for instance you can use an EN100 in parallel with and EN160 as the plates are identical Steve On 30 September 2014 12:43, James Cameron wrote: > I've often maintained VRLA or gel batteries in parallel, on a float > charger. > > But only if they have had a similar experience since birth. > > Once, there was a battery that developed some internal problem and it > was taking most of the float charger's current, causing the other > batteries in the set to be not charged. It had a different life > experience before joining the set. > > I prefer to feed the array from opposite ends, to even out the > voltages. > > I've never mixed battery types. I don't think it would work very > well, given that the voltages at termination of charge are different. > > -- > James Cameron > http://quozl.linux.org.au/ > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .