Batteries in vehicle cabin

[LeighW Avid PP Poster! Find all posts View Profile Close LeighW]

With dual sense, if either battery has a charging voltage applied it will link the batteries.

[Guest Close Guest]

Andrew you can get the manual crimpers for about $30.

I remember having this conversation before. This looks like the go?
http://www.ebay.com.au/itm/ANDERSON-...c63129e&_uhb=1

I would and do charge the batteries separately with the battery charger (I have the 20A or 25A? Projector).

I don't really have good access to the front of the Prado in the garage, so figured that the dual sense VSR would help me fully charge up the starter occasionally. The only time both batteries would be in the car and getting charged up by the AC charger is the few days leading up to a trip where the fridge would be loaded and cooled down prior to heading off.

[Guest Close Guest]

With dual sense, if either battery has a charging voltage applied it will link the batteries.

Are there any issues with the Projecta charger charging an AGM and a wet cell battery? There are 4 battery types on the charger: 14.1V (GEL), 14.4V (AGM), 14.7V (WET), 16.0V (Calcium)

Which mode is best or should the batteries be charged separately?

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

That's the tool I used until I was gifted the unobtainium version.

[AJ120 Out of control poster! Find all posts View Profile Close AJ120]

For what its worth I have a very old cheap nasty 4 amp battery charger, I often whack that on the crank battery, when that gets up to voltage it charges the second battery at the same time, also had the camper hooked up quite a few times which is effectively a direct feed from the crank battery, all charge at the same time and if there is an issue I cant pick it.

If you want to select a voltage then just make sure its lower than the highest charge rate any of your batteries can take, it might just take a little longer that's all.

You could borrow my crimper if you want, probably cost more to get it back and forth than buying one would cost.

Cant comment on that VSR in particular, but cheaper ones don't like heat in my experience, seen a couple play up when you needed them the most in stinking hot weather.

Cheers Andrew

[LeighW Avid PP Poster! Find all posts View Profile Close LeighW]

Are there any issues with the Projecta charger charging an AGM and a wet cell battery? There are 4 battery types on the charger: 14.1V (GEL), 14.4V (AGM), 14.7V (WET), 16.0V (Calcium)

Which mode is best or should the batteries be charged separately?

I assume you your referring to charging a wet and AGM batteries, I don't know
why the chargers have a wet setting of around 14.7V anymore, most modern
AGM's and wet cells will charge quite happily at 14.2V - 14.4V, I would just leave
on AGM for both. Only time I would change it would be for a GEL or full calcium battery.

Cheers
Leigh

[Guest Close Guest]

If you want to select a voltage then just make sure its lower than the highest charge rate any of your batteries can take, it might just take a little longer that's all.

Makes sense which means I won't have to change the battery type on the charger

You could borrow my crimper if you want, probably cost more to get it back and forth than buying one would cost.

Thanks for the offer. Agreed. Will get my own.

Cant comment on that VSR in particular, but cheaper ones don't like heat in my experience, seen a couple play up when you needed them the most in stinking hot weather.

Will do more research. So far, it looks alright.

[Guest Close Guest]

I assume you your referring to charging a wet and AGM batteries, I don't know
why the chargers have a wet setting of around 14.7V anymore, most modern
AGM's and wet cells will charge quite happily at 14.2V - 14.4V,

Yes, charging both batteries at the same time.

I would just leave
on AGM for both. Only time I would change it would be for a GEL or full calcium battery.

Thanks Leigh

[Guest Close Guest]

Another question. Can I piggyback off the Anderson plug (SB50) that has 6B&S with 15A cable (I assume around 18AWG) to a 30A Anderson Powerpole? i.e. I want to terminate 6B&S and 18AWG into the same SB50 terminal.

[Mattfunk 120 Advanced Member Find all posts View Profile Close Mattfunk 120]

I only would If you suitably fuse your cable feeding your power pole as 18wg has a lower current carrying capacity than 6b&s. Your fuse will then have to be of equal or lower value than the ccc of the 18 wg cable. Amperage will also depend on the length of cable as voltage drop may be a factor and voltage is relative to amps

[Guest Close Guest]

I only would If you suitably fuse your cable feeding your power pole as 18wg has a lower current carrying capacity than 6b&s. Your fuse will then have to be of equal or lower value than the ccc of the 18 wg cable. Amperage will also depend on the length of cable as voltage drop may be a factor and voltage is relative to amps

Yes, there will be a fuse on the leads from the charger. My concern is whether the additional 18awg wire can fit into the SB50 terminals which are suited for 6B&S.

[drivesafe Senior Member Find all posts View Profile Close drivesafe]

My concern is whether the additional 18awg wire can fit into the SB50 terminals which are suited for 6B&S.

Hi amts and if you are soldering the cable into the Anderson terminal, and if the cable is a tight fit or just won’t fit, cut enough strands off the 6B&S cable tow allow the two cables to fit the terminal, then solder the cables in place.

The solder will wick up both cables and the solder, while having a slightly higher resistance, because it thickens the cable, the 6B&S will still have the same or marginally better current carrying capacity.

[Mattfunk 120 Advanced Member Find all posts View Profile Close Mattfunk 120]

Hi Amts , from looking at the specs on the SB50 you may not fit both cables in. I don't have a part no of my plug but the tunnels took up to 16mm2 cable. These size Anderson plugs would fit both cables. I'll go & have a look if part no on plugs as I also made a 5m 16mm2 lead which is great to connect between trailer and vehicle when parked beside trailer when unhooked as whether solar or 240 you can charge crank aux & camper batteries at the same time .

[Mattfunk 120 Advanced Member Find all posts View Profile Close Mattfunk 120]

Had as look at my plug (sb 50a) but definitely used 16mm2 cable . I assume maybe larger tunnels in same housing?

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

I have the plug terminals and cable do you want me to check? I would think yes. Crimping rather than soldering.

Ok, I was bored. Yes. Second wire was flattened and pushed in with the 6B&S. No problems if tight. Second cable is 18AWG.