XPost: aus.cars, aus.computers, uk.rec.caravanning   
   From: newsninespam-spam@woa.com.au   
      
   On 01/11/12 14:05, Neil wrote:   
   >  I   
   > suspect a 300Ah battery would be considerably more expensive than 3 x   
   > 110Ah batteries together, but you would have to research that   
   > yourself.   
      
   125Ah are the largest common Deep discharge wet cells in Aust. Rather   
   than put tweo in parallel to get larger capacity. I preferred to buy two   
   6Volt 225 Amphour batteries. that was to prevent the problem of one   
   failing and pulling down and maybe destroying the other.   
      
   Another factor is my ability to lift individual batteries in and out of   
   locations. I remember that the 12V 125AmpHr batteries weighed 35kg each   
   Can not remember the figure for each 6V 225Amphour battery.   
      
      
      
   > The differences between battery types are basically this:   
   > Leisure batteries are designed for prolonged but light current drain,   
      
   > Traction batteries are designed for electric propulsion and other   
      
   > Vehicle starting batteries capable of delivering very high currents   
      
   My rule of thumb is that if the battery is rated in amphours, then it is   
   designed for "deep discharge" use. If it is rated in CCA, then it is a   
   ICE starter battery.   
      
      
      
   > All lead/acid batteries have the potential to emit hydrogen and oxygen   
   > when they are overcharged.  This is actually beneficial when   
   > equalising a battery, but requires the ability to be able to replace   
   > the water lost in so doing.   
      
   This is why cheap battery chargers are a bad idea. They do not limit the   
   final trickle voltage and can run wet cells dry.   
      
   > I don't have any links for you, I got my battery from a local caravan   
   > spares dealer.   
      
   I actually go to a battery specialist who originally had traction as   
   well as alarm batteries but a seems to have moved more to alarm and   
   specilist motor starters(changing market in the area). Look in yellow   
   pages, etc for battery supliers in industrial areas and avoid main   
   street battery shops.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)