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View Full Version : Auxiliary in vehicle - deep cycle or hybrid?


Ranga
31st March 2015, 09:03 AM
I'm looking at replacing the auxiliary battery in the vehicle. Currently I have 2 dying Century 68 crankers in there (one for starting, the other as auxiliary). I want to change the auxiliary and can't decide whether to go with a deep cycle or hybrid.

Very little auxiliary power gets used in the vehicle, apart from charging devices and running a water pump when the vehicle is off. However, I also carry a Trayon camper with an AGM deep cycle in it, which can be connected to the vehicle auxiliary via anderson plug for charging or when extra power is required.

I also have a Traxide SC-80 and have switches set up on both batteries to allow them to be isolated during normal use or joined when winching.

Any recommendations?
87County
31st March 2015, 09:19 AM
I've got similar setups to yours and have decided for the time being to use similar main and auxiliary batteries simply from the point of view that they will be interchangeable in the event of unexpected battery failure in remote spots.

Different battery types will have different uses and I'm sure that other people will have alternative views on the subject :)
Judo
31st March 2015, 04:51 PM
Do you have a winch? It will draw from both if the vehicle is running and they are joined right? That's my understanding, so I think a hybrid type is best for that.
Blknight.aus
31st March 2015, 05:36 PM
Hybrid if the budget stretches to a good one.

not quite the best of both worlds but better than either of a cheap deep or cranking battery.

a good cranking battery if the budget doesnt go that far but favor a higher RC/Ah over max CCA..
Ranga
31st March 2015, 10:30 PM
Hybrid if the budget stretches to a good one.

What's a good brand/model?
loanrangie
1st April 2015, 10:31 AM
What's a good brand/model?

Supercharge allrounder, 105ah plus decent cranking amps.
Keithy P38
3rd April 2015, 07:08 AM
I'll second the Supercharge All-Rounder. I run two (one start and one aux). The benefit is that I rotate them around every 6 months so they both get a chance to do cranking duties, or rest. I run a switchable SC80 as well.

Three years out of them so far!

Cheers
Keithy
Ranga
5th April 2015, 01:43 AM
Ended up getting a Century Marine Pro 730 for ~$180.