Sorry Peter � meant this one:

http://www.van-cafe.com/home/van/page_1125_1435/camper_appliance_second_battery_relay.html

bob
On Aug 3, 2012, at 9:45 AM, Robert Stevens <mtbiker62@gmail.com> wrote:

On Aug 3, 2012, at 7:51 AM, turbowesty <turbowesty@GMAIL.COM> wrote:

The little box that isolates the aux battery (and what's it called?). The alt wire leading in has 14 volts, the line to the battery out of there only shows 5.2 v. 

Mine is branded Hamsar, 40 amp