Amp Hours

16 Posts
Sep 27, 2008 08:33 am
Amp Hours

can a e27sdlG (MK) 98AH and a 12sc90 84ah  be hooked together to increase AH capacity or do all batteries have to be from same manufacture and smae amp hours?
 
27 Posts
Oct 1, 2008 05:04 pm
Re: Amp Hours

If they are both the same voltage they can be hooked together in series to double voltage or parallel to double amps hours.  For instance, if the batteries are both 12volts you can wire them in parallel and get a 182ah, 12volt system.

Brand of battery and amp hours does not matter - however battery type does matter.  If you were to charge an AGM and Wet cell (even if they were both 12volt) together you would have some big issues.
« Last Edit: Oct 1, 2008 05:06 pm by Michael Riewer »
 
220 Posts
Oct 1, 2008 09:24 pm
Re: Amp Hours

hi guys,

  i just want to add my two cents on this thread. for the benefit of others who may be looking over these forums for information.

  homepower ran a good article about this subject.

http://www.homepower.com/article/?file=HP122_pg14_ATE_5

 this article gives some reasons why mixing different batteries is not such a hot idea. and especially a bad idea when trying to mix them in a series arrangement.

  if it were me i would treat these two batteries as separate "banks" and not leave them connected to each other in a parallel configuration. and i would not consider any kind of series connection with this pair (the 27sdlg is a gel cell and the sc90 is a sealed cell) except in some kind of emergency.

 incidentally there are ways to mix oddball batteries in a parallel configuration- and it can be done. but it involves hand picking a match after a whole lot of measuring and testing.

best of luck.
 
16 Posts
Oct 2, 2008 01:03 am
Re: Amp Hours

Thank you all, I will have to make it a point to get all of the same type of battery to make life a bit easier, thanks again.
 

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