Dual Battery Kits and Parts


Dual battery setups are common in environments where there is a specific battery used for vehicle starting and another separate battery (or battery bank) for powering on board appliances and accessories. This setup is very common in caravans, campervans, marine or high-end show cars with large sound systems or custom lighting.

There are many components to a dual battery setup which can vary depending on power consumption, vehicle type and of course budget. Essentially the dual battery components manage the power coming in. Prioritising power to the main battery and managing automatic low voltage switching during use. This is designed to eliminate the possibility of the critical starting battery running flat!

Mr Positive carries a wide range of dual battery components and full kits. From simple single component relays to complex LCD screen based multi input battery management systems.


Our Staff Picks



CTEK D250SE DUAL - 12v 20a 5 Stage DC/DC Caravan Battery Management System
On Sale 8% OFF RRP $562.00
CTEK SmartPass 12v 120a 5 Stage DC/DC Battery Management System
On Sale 8% OFF RRP $599.00
Double Pole Reversing Solenoid

Double Pole Reversing Solenoid

$105.00

Rotary Battery Master Switch with 4 Positions
On Sale 15% OFF RRP $79.00
Voltage Sensitive Relay - 12v 140a

Voltage Sensitive Relay - 12v 140a

Now $102.00

On Sale 15% OFF RRP $120.00