Use accessory power sockets after ignition is turned off

ignat

Well-Known Member
Joined
Mar 22, 2010
Messages
524
Garage
Country Flag
south_africa
I read somewhere that it is possible to get the accessory sockets to work with the ignition off. Anyone know how to do this? :?:

(I plan on replacing one of my two batteries with a leisure battery, fit an isolation switch so when camping etc I can run some 12v accessories, phone chargers etc - without fear of running both batteries down.)
 

lcruiser100s

New Member
Joined
Apr 23, 2010
Messages
3
Kevin,
you would have to rewire the Cigarette socket from accessory power, direct to the battery.
 

Paul_Humphreys

Well-Known Member
Supporter
Joined
Mar 1, 2010
Messages
1,301
Country Flag
uk
lcruiser100s said:
Kevin,
you would have to rewire the Cigarette socket from accessory power, direct to the battery.

Spot on. I have 3 more in the front and 2 in the rear. All run off of the 3rd battire on my 80 series. Just do not forget to put fuses in.

Paul
 

Chris

Super Moderator
Supporter
Joined
Feb 24, 2010
Messages
17,301
Garage
Country Flag
europe
Rather than a cut off switch which you WILL forget to throw, you can get a voltage cut-off sensor that will trip when your battery reaches a critical level. Now if it's a leisure battery it doesn't matter. But off the main one - especially and auto, it's a good safety measure.

Chris
 
Don't like the adverts?  Click here to remove them

SpinDrift

Well-Known Member
Supporter
Joined
Mar 18, 2010
Messages
1,102
Garage
Hi Kevin,

an automatic isolator is the way to go. It can be risky depending on memory to manually isolate the leisure battery. I have three additional power outlets in the front and two in the back, all connected to a battery number three located in the cargo bay. The leisure battery is automatically connected to the alternator for charging when the voltage rises above (approx) 13.4 volts. I haven't chnaged the wiring of the OEM power outlets. Don't forget that in everyday use you might plug in devices such as gps/charger/whatever that would noramlly operate while the engine is running. If you rewire, these devices will continue to drain power when you park up and the engine is switched off if you forget to isolate.
 

Graham

Well-Known Member
Joined
Mar 22, 2010
Messages
3,936
Garage
Country Flag
uk
I really do like the sound of these 'automatic connect and disconnect' gadgets.

What do they cost?

So I can effectivly put a 3rd battery in the load area, and supply it from the main batteries, through this gadget?
or does the 3rd battery need be connected direct to alternator output stud?

Graham
 

lcruiser100s

New Member
Joined
Apr 23, 2010
Messages
3
Battery 1. Main starting Battery connected directly to Alternator.
Battery 2 (3or 4) connected in parallel to starting battery with some sort of cut out. on the positive feed line
battery 2 should run accessories you would use when the engine is off. ie. lights, fridge, winch.

the cut out. preferably should be an automatic isolator connected to on on your ignition switch.
Isolator preferably wants to be 100amp or more rated.
A cheap way of doing this is with a key switch battery isolator, this means you have to manually turn on or off. (Not a great idea.)
I use a red arc isolator. (other brands available) this only charges the 2nd battery when the 1st battery is charged enough allowing you always to have a full starting battery.

Matt
 
Top