Dual Batteries TD5 110 Defender

**harro** · 25th July 2014, 08:52 AM

Originally Posted by TeamFA

Thanks Paul,

The Optima Red Top 34 looks to be very popular.

Would I be close in guessing that the Optima Yellow Top would also be a contender as the auxiliary/secondary battery?

I'll have to work out a system of securing them under the seat - previous methods were very basic. You've done well to fit a battery holder in there as well as the batteries - it's pretty tight in there.

The yellow top is dual purpose so if you are concerned about having a backup cranking battery probably not a bad choice but purely as an aux. battery they are not particularly high in A/h storage capacity as are all of the Optima range.
Have a look at their A/h ratings.
IMO you can do much better for the money with a dedicated conventional AGM deep cycle.

Cheers,
Paul.

**Defender08** · 27th July 2014, 10:11 PM

Harro
What after market battery holder did you use?

**harro** · 28th July 2014, 06:22 AM

Originally Posted by Defender08

Harro
What after market battery holder did you use?

Secondhand with no makers mark but designed for the Defender.
Sorry I can't help more.

Cheers,
Paul.

DiscoMick · 28th July 2014, 07:13 PM

You might try pricing them through Repco which has a standard 10% discount for motoring club members e.g RACQ etc.

**MLD** · 29th July 2014, 07:48 AM

My 2c, Club Assist is the largest battery manufacturer in the Southern Hemisphere and are in a commercial relationship with your state motoring club ie NRMA, RACV etc. you are likely to buy the same product under who ever's brand ie from battery world as you will get from your motoring club. You will find your motoring club cheaper.

That aside, also consider a Marine battery. They are designed for deep cycle and as a starter battery, use thicker plates and more robust construction. A boat pounding over chop isn't much different to corrugations. Also good as your aux battery for winching. A 105a/h marine battery is the same size as N70 battery.

I was able to fit 2 x N70's and a Traxide isolator in a TD5 battery box with little but room to spare.

MLD

**87County** · 6th March 2018, 10:00 PM

here you go saiken

for those who wanted a pic of one alternative sideways N70 dual battery install

IMG_4443.jpg

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