Deep Cycle Batteries

You would be better off just buying the biggest good quality cranking battery that will fit in the battery box, typically on cruisers a N70ZZ.
A cranking battery is a much better proposition for most people as the vehicle is typically used infrequently for camping etc so the deep cycle is not used to its best advantage.

I don't agree with using crank batteries like Peter.
The dual battery set-up should keep it properly charged and seperated when not in use.
Crank batteries are poor at deliverng a few amps over a long period and their life will be quite short if you treat them like that.
Best to buy a proper deep cycle battery.
Gels and AGMs are best because they don't fall apart inside due to vibration.
I prefer AGMs because they can handle higher charge and discharge rates, but they don't like the high temperatures under the bonnet, so it depends on where you want to put it.
Wet cells are OK provided the plates are attached top and bottom, otherwise corrugations will kill them.

Cheers,
Peter
OKA196 Motorhome

For a 105 the largest battery you will fit in that slot is a Trojan 130 amp hour deep cycle. They are one of the best for that type of construction. Can expect around 5 years life for about $250 when I looked last.
Cheers Craig.............

gezza100,

Well at least your aware you will require a Deep Cycle battery to run your fridge & lights etc :)

Basically there are two types of batteries, Cranking and Deep Cycle.

Wet cell STARTING battery is designed to deliver quick bursts of energy ( for starting )

Wet cell DEEP CYCLE batteries have less instant energy, but greater long-term energy delivery with thicker plates and can survive a number of discharge cycles.

Starting batteries should not be used constantly for Deep Cycle applications.
The Dual Purpose battery is only a compromise between the two battery types.

The Wet Cell comes in two styles, serviceable and maintenance free, both are filled with electrolyte.

AGM construction allows the electrolyte to be suspended in close proximity with the plates active material, this enhances both the discharge and recharge efficiency.
Popular usage is in high performance engine starting, power sports, deep cycle, solar & storage battery.


Buy the largest footprint AGM Deep Cycle battery what will fit into the cradle, get a battery without a normal 'battery post' that way you know it's designed as a Storage battery, not a Cranking battery and use thick battery cable.

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