Will I need a dual battery?
So I am planning on adding a 12k winch, some DD SS3's a fridge, a ARB dual compressor and I already have a Ham radio. The fridge will be the last thing we get. I have a stock battery in there now and don't want to have issues when out there alone.
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If you don’t get an aux battery you better have a jumper lol.
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If you don't want to deal with the complexity of dual battery, for the same price or less you may be better off with just upgrading the stock battery to a deep cycle and then possibly supplement with solar when you get the fridge. No matter what I would invest in a lithium battery jump-pack just in case.
I don't have a winch, but I've had zero issues running a fridge and lighting accessories with a group 24 X2 deep cycle battery for extended periods off-grid. I do bring our Goal Zero Yeti as back-up for the fridge when we are in one area for more than a couple of days (I can usually get 24 hours of fridge run time off of the battery without starting the vehicle). I'm in the process of adding 90w of hood mounted solar unit to keep the battery topped off...this should allow us to run our stuff off-grid almost indefinitely as the fridge pulls about 60w while the compressor is running. The solar will also keep the battery maintained. Here is what we will be installing soon, it's currently in transit. Definitely not the cheapest option, but I am a big fan of plug and play. Toyota 4Runner | VSS System™ | 90 Watt Hood Solar Panel - Cascadia 4x4 |
Yes, you definitely need dual battery. Here's my setup. I have a portable battery which you can actually use on a lot of things and you don't have to carry it when not needed. here's my youtube link if you are interested.
https://www.youtube.com/watch?v=ZbVtZvK-f9s Quote:
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I have all the accessories you mentioned, including lots of camp lights, and have no problem going for days camped in the back country with a single deep cycle battery and a solar panel or 2. Sent from my iPhone using Tapatalk |
Optima would seem to think if you have anything extra you reallllly need that yellow top.
I’ve seen duals with two yellow tops. Maybe that’s overkill. Sent from my iPhone using Tapatalk |
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A 2nd battery would certainly help.
You can always do as they do in boats and add a battery selector switch. When driving and using/charging it is in the both position and when camping or whatever it is in the 2 position. That way the #1 battery is always charged for starting purposes etc. If running low charge on the #2 house battery, just switch to both and charge it up with the alternator. https://images-na.ssl-images-amazon...._AC_SX425_.jpg |
How many cca’s does your 12k winch call for? My 10k calls for 650 cca’s minimum. I’m sure people are getting away with running a 10k on the stock battery, but something to consider.
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I have no issue doing a dual battery setup, I just don't know what exactly to do but I would just buy a kit ready to go, I wish I could just pay someone who knows exactly what to do and has done it before. Electrical is no my strong suit.
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I have a dual battery setup but I've been toying around with my Dometic PLB40 and it powers the fridge for 48-72 hours without issue and I can recharge it while I drive. I don't have a solar blanket but energy would be unlimited if I did. Honestly that accomplishes pretty much the purpose of my dual battery setup without all the complexity and cost. If you're still dead set on a dual battery setup then you can get the Off-Grid engineering kit that has everything you need and pre-cut and crimped wires. Something even easier is the National Luna Portable power pack which is just plug and play. 2010-Current 4Runner/ 2010-2014 FJ Cruiser Complete Dual Battery Syste – Off-Grid Engineering DC-25 Power Pack – Equipt Expedition Outfitters |
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