crob Posted August 26, 2007 Share Posted August 26, 2007 I would be interested to hear views on my battery life experience. We have two 90a batteries, connected together, and I had to replace them both just before our recent holiday. We set off on Sunday 22 July, via Buckingham Palace (for the Caravan Club garden party!), New Forest, St Austell to St Ives. We were on batteries throughout, with the lights being on for, I suppose, an average of one hour per day, and lots of water pumping - we got through 400-500 litres I think. I had to connect to an electric supply to recharge the batteries on Thursday 9 August - that's 18 days. I think that this is reasonably good, but am I correct? Colin Robinson. :-D Link to comment Share on other sites More sharing options...
BrianR Posted August 26, 2007 Share Posted August 26, 2007 I have just one, 85 AH, battery and I find that it will last us 5 days at the most, being very careful and only using it for lights (2 x 10W x 2hours per day) and the water and toilet pumps. This would probably be more or less the same as you experience, depending on what your lighting usage was. Brian Link to comment Share on other sites More sharing options...
Bill Ord Posted August 26, 2007 Share Posted August 26, 2007 How on earth did you use 500 litres of water? that is 4 of my tanks at 125 litres. Bill Ord Link to comment Share on other sites More sharing options...
handyman Posted August 26, 2007 Share Posted August 26, 2007 i usually use 100L per 2 days Link to comment Share on other sites More sharing options...
crob Posted August 26, 2007 Author Share Posted August 26, 2007 Water - it's about 25 litres per day, mostly with 4 adults and one child - 5 litres per day per person. That's not excessive, is it? Colin Robinson. :$ Link to comment Share on other sites More sharing options...
handyman Posted August 26, 2007 Share Posted August 26, 2007 might add thats 2 people, 4 showers, washing dishes, toilet flush and drinking water Link to comment Share on other sites More sharing options...
robin Posted August 26, 2007 Share Posted August 26, 2007 crob - 2007-08-26 1:27 PM I had to connect to an electric supply to recharge the batteries on Thursday 9 August - that's 18 days. I think that this is reasonably good, but am I correct? Colin Robinson. :-D Colin, Wouldn't you be charging the batteries from the engine alternator when you are on the move? So it would depend how many miles you drove in those eighteen days, and /or how many days you stayed in one spot without driving. I wouldn't ever expect to need electric hook when touring, if I am averaging say 50 miles per day, and staying no more than 2 / 3 nights in one spot without any driving - that is with 2 * 110 amp hour batteries By the way, we normally use around 30 litres of water per day, that includes washing / washing up and two showers - so 500 litres in 18 days sounds reasonable to me. Link to comment Share on other sites More sharing options...
crob Posted August 27, 2007 Author Share Posted August 27, 2007 Thanks, Robin. We did some driving in the first five days of the holiday, but thereafter we only did about 50 miles, so we were on just two sites with minimal driving for two weeks. Colin. Link to comment Share on other sites More sharing options...
trooper Posted August 27, 2007 Share Posted August 27, 2007 WE used to have poor battery life but after a little research when we canged the m/h we decided to have a battery to battery charger fitted from new,to date we have had 4 nights at a air show, using tele etc as normal and still had 12.5 volts,whether this is the b to b charger or our new m/h I dont know, has anyone else got one? Cheers Link to comment Share on other sites More sharing options...
bigal55 Posted August 27, 2007 Share Posted August 27, 2007 trooper - 2007-08-27 7:26 PM WE used to have poor battery life but after a little research when we canged the m/h we decided to have a battery to battery charger fitted from new,to date we have had 4 nights at a air show, using tele etc as normal and still had 12.5 volts,whether this is the b to b charger or our new m/h I dont know, has anyone else got one? Cheersbeing thick could you explain the difference between the on board battery charger and b to b one thanks Link to comment Share on other sites More sharing options...
trooper Posted August 27, 2007 Share Posted August 27, 2007 HI Alan, When travelling your alternater only puts a low charge into the leasure battery, whith a b to b charger after making sure the vehicle bat is fully charged it puts a very high charge into leasure batts, it also increases the amount the battery holds because of this higher charge, ( road pro catalouge), I have simplified this as I am a bit thick, Cheers (^) Link to comment Share on other sites More sharing options...
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