Hi Tom, Is that correct? I don't know myself but intuition would suggest to me that if the batteries were connected in parallel without the charger they would soon about balance each other. Once the charger is introduced the same conditions would apply, that is the weaker of the batteries would acquire charge faster than the other then together they would come up about equivalently wouldn't they?
I think I would be concerned about the load on the charger though. Most would have a safety overload of some sort wouldn't they ? I haven't much experience with charging wet cells, as a kid we used to have to top up the battery in a couple of our boats that didn't have their own charging systems but that was about it. Oh yes, sometimes in the winter dad would put a charger on the car battery on those real cold nights to improve the chances it would start in the morning. Dale Leavens, Cochrane Ontario Canada [EMAIL PROTECTED] Skype DaleLeavens Come and meet Aurora, Nakita and Nanook at our polar bear habitat. ----- Original Message ----- From: Tom Fowle To: [email protected] Cc: [EMAIL PROTECTED] Sent: Sunday, November 11, 2007 11:00 AM Subject: Re: [BlindHandyMan] series or parallel rob, You'd do as you said, and that's parallel, but don't do it. If, as is very likely the batteries aren't exactly identically charged or discharged when you start, the current from the charger will be unevenly distributed between the batteries. This will almost certainly lead to uneven charging of the batteries, and if perhaps one battery is much more charged when you start than the other, you can get a very high current flow between the batteries and some pretty hot wires and batteries. there is no reason to even try this as even if it worked it would take twice as long to do the job, so you may as well charge the batteries seperaately and be safe. Again, charging two batteries from a charger designed for a single battery can be dangerous and has no advantage, so please don't do it. with led acid or similar batteries it is O.K. to parallel them for normal operation, re: running stuff as long as they're both charged properly seperately. It's not a good idea to parallel cells with nicad or nimh batteries either. tom Fowle Net-Tamer V 1.13 Beta - Registered [Non-text portions of this message have been removed]
