Recommended Dual Battery Systems & Auxiliary Battery Chargers
Below you will find wiring schematics & ideas to construct simple and efficient D.I.Y. dual (auxiliary) battery charging systems (battery isolators) for your 4x4 vehicle. These were kindly submitted by our subscribers. An auxiliary battery will allow you to run a camping freezer, camp lights, inverter and other accessories without draining your 4x4's main battery ! Contributions welcome...
The Deltec Voyage 105ah battery is the most popular deep-cycle battery amongst the Overland Forum subscribers...
DC to DC intelligent charger from CTEK (NEW) - Available from Bud Morris ZA Cell 073 255 2108 !
George Rudman's Dual Battery Positioning in a Discovery II [PDF]!
Peter Williamson's Dual Battery System [PDF]!
Voltage Sensing Relay from Blue Sea Systems !
Voltage Sensing Relay from BEP Marine - Available from Bud Morris ZA Cell 073 255 2108 !
Dual Battery Chargers from REDARC in Oz !
The Authorative Deep-Cycle Battery FAQ !
Hennie Rautenbach's Dual Battery FAQ !
Dual Battery Circuit based on a Relay Isolator (credit to Fernando Bandeira [bandeira at ananzi.co.za])
Dual Battery Circuit based on a Diode Isolator (credit to Fernando Bandeira [bandeira at ananzi.co.za])
LED Battery Monitor Circuit (credit to Paul Damhuis)
Johann Hugo's Dual Battery diagram...
Andrew Kenny's circuit of a simple Cole & Hersee Dual Battery system...(submitted June 2005)
Kenny Thackwray's "less simple" dual battery system...(submitted Mar 2005)