Dual Battery Setups! Let's see them! Multiple Batteries Thread!

Ok. What about the 8awg wire going to the house battery? Can i use one of those fuses meant for an audio setup? Or would an ANL fuse work ok?

 

I guess I should have asked... What guage wire are you running to your blueseas panel? Ultimately, your fuse should be rated based on the length and guage of the wire + the potential draw. ANL fuse works great, if you are using 10awg or smaller wire, you can use many other fuse types.

 

I hadn't gotten that far yet. But i have on hand 8 and 16. The blue seas will be less than 12" away from the second battery, like it is now. I have some junky battery cables going to it currently.

 

I would like to thank everyone for there help. I will try and go back and answer everyone's questions.

Below is what I finely went with.

REDARC BCDC1240D

$539 REDARC 40A in-Vehicle DC to DC Charger with MPPT — Dual Input for Solar & Alternator Charging, Green Power Priority - 12 or 24V Battery Charger Suitable with AGM, Gel, Lithium LiFePO4 Batteries

https://www.amazon.com/dp/B077JR6NH5

(X-2) Renogy 12V 100Ah Smart Lithium Iron Phosphate Battery(with self-heating function)

Renogy Smart Lithium-Iron Phosphate Battery 12V 100Ah w/Self-Heating Function,4000+Deep Cycles,Built-in BMS,Backup Power Perfect for RV,Solar,Marine,Off-Grid System

https://www.amazon.com/dp/B08XV9BQL6?ref=ppx_yo2_dt_b_product_details

Renogy Monitoring Screen

$30 Renogy Monitoring Screen for Smart Lithium Battery Series,Black

https://www.amazon.com/dp/B087TMZMP6?ref=ppx_yo2_dt_b_product_details

 

Thanks for the reply. As of right now I can get 4-5 days out of mine without charging.

 

@sawbladeduller Thanks for all the good info. I talked to the folks at REDARC and they said 6awg would be fine, but the way I did the install my runs were way shorter.

 

With the two 100AH batteries I went with I have run at least 4 days without charging.

 

What size fuse do you have between the redarc and the house battery?

 

I did take a "jump start pack" with me, thanks to you. Your info is one of the reasons I went with the 1240, if I was doing it again with the same setup I would have went with the 1250. O-well!

 

Thanks for the info. All you guys helped a lot.

 

Yes, it is a steep learning curve, and LOTS of frustrations. I got everything installed the Monday before we was to leave on Saturday. Also when I installed the wire for the lights in the camper top one of my ground wires fell down behind the battery and of course nothing worked, and it took me two evenings to figure it out. Did I mention LOTS of frustrations?

 

Sorry went with the lithium.

 

"I might have came out kinda assholish" , I like "assholish".

I did sort of plan everything out, BUT changed my mind mid-stream. There is a lot of info to sort out in two weeks.

 

This is the one REDARC recommends.

$86 60A Fuse Kit

https://www.amazon.com/REDARC-FK60-...34338cafcd0&pd_rd_wg=myoUd&pd_rd_i=B07FHTKHBW

 

Hmm i have a CTEK and was wondering if they were similar. Im going to put a 60a between the second battery and my blue seas fuse panel. According to this picture a 30a will work also. The CTEK is a 20a charger.



I am also probably going to upgrade to an Amazon brand of 100ah LiPo battery. Building around that, but using my 62ah agm for now

 

EPIC! good choice. Those are beyond my legal income...ahahahahaha.
Zim

 

Hope your compressor is 30A or less, that’s the max single circuit limit for Blue Seas panels. Otherwise just go with a stand alone fuse or breaker for that circuit.

 

Im not following that exactly. My ARB dual is connected through my sPod in the engine bay.

What compressor are you asking about?

 

I guess i didnt read close enough. Its all right here.. ill order up a 30A anl fuse

 

The one in the schematic where it says “mounted in rear- connects fridge, compressor, etc.”
If yours is different then my post is more of a “to whom it may concern” regarding that part of the schematic. Panels have a per circuit max as well as an overall current max. If you don’t mind my asking what is the per circuit max for Spods?