I believe I need to replace my extra battery on my newly purchased 2001 Ford EB Sportsmobile EB-51
After 1+ hours of driving, it looses it charge from 12v to 9v within 4 hours with only the refrigerator running.
The manual states that the recommended extra battery is a Thermoil battery 1427
. The Thermoil site http://www.thermoilbatteries.com/
does not appear to carry this battery any longer.
Is there a recommended alternative for the extra battery?
Has any body used the Thermoil battery additives?