[Default] On Mon, 20 Oct 2008 19:53:24 +0100, Andy Clarke
On 20/10/2008 18:10, Elektrickydicky wrote:The only reason I suggest 40 to 50A is the fact that they are using a[Default] On Mon, 20 Oct 2008 17:00:22 +0100, Si BI concur with Neill too...
generator, which probably means that it will be used irregularly and
for relatively short periods of time. We should also consider the van
load at the time of charging. If lights are on, computers being
charged etc the amount going into the batteries is reduced. I still
feel 40A would be sensible. Thats a 3 stage charger charging at 14.8v
in bulk and absorption. The generator supply means it would never get
to float. Obviously regular top ups are required at these charging
levels. If on a continuous landline then a 20 amp would probably be
adequate. I would bet a coke that their batteries are well sulphated
and really need a couple of days at 15 volts to give them half a
chance. Batteries in this type of environment do not last! Statements
like 11.9v worry me.