Thread: Defender second battery location

Originally Posted by manic

You constantly dance around the questions put to you when it comes to the max amps your suggested battery will absorb when charging from a sensible low voltage cut off.

I have never owned your kit, so I am not familiar with it. But on the sc80, dt90 suggested on this thread - isn't the link from stater to aux in effect limited by a 50 amp circuit breaker?

The can of worms on what Amperage a rated breaker will trip at is also a fun discussion.

Rexy , can I just ask if you have checked the specifications of your battery to find its maximum charging rate?
I would be surprised if it was 40 amps.
For example, the maximum charge rate for my Kickass 120 ah AGM is 25 amps.
That is why the 240 volt charger I sometimes put on it is only 25 amps.
If you put a 40 amp charger on a battery that can only accept 25 amps, then I suggest you run away, fast.

KickAss 12V 120AH Portable Deep Cycle AGM Battery | Australian Direct

Originally Posted by DiscoMick

Rexy , can I just ask if you have checked the specifications of your battery to find its maximum charging rate? I would be surprised if it was 40 amps.

Mick,

Based on Fullriver, the 40a inrush is quite possible.



See the left Axis, 0.25x C20
The bigger the battery, the more it can take.

Of note (not posted) but known, as temperature increases, charge voltage should lower.

For all the paranoid wot watchers among us. Run your battery down to 3 volts (not Recomended) Great bit of gear.





AM

This is as tight a fit as you will physically get. There is also a Victon 100/15 MPPT charger and a Traxide unit in there.

You need spaghetti fingers to get in.

Geez I thought our battery box looked crowded with a starting battery, Traxide and PWM solar regulator in there, but yours beats ours easily.
I had to fit an Anderson plug outside to make it easier to attach a battery charger or extra solar panel.

During the install on Ike... a little different.

Originally Posted by DiscoMick

Geez I thought our battery box looked crowded with a starting battery, Traxide and PWM solar regulator in there, but yours beats ours easily.
I had to fit an Anderson plug outside to make it easier to attach a battery charger or extra solar panel.

For jump starting.