MOST PEOPLE GET THIS WRONG

Thanks Ronny. Been watching you for years and gained a great deal of knowledge. No good deed goes unpunished so here ya go. Just a lil appreciation and gratitude. Enjoy!

Bit of advice from an ex mechanic. If your in your wiring buying stage use calculators, they have how much amps your going to use, how ling the wire is and voltage drop. When planning it in the calculator add 1mtr to the wire length. Try go for 1% drop. If you find it's just on the max length it's worth going up a size (down in awg number). Honestly I normally recommend doing that anyway, if something calls for 8g, go for 6 or even 4g. It'll heat up less. Less voltage loss and does allow for some future proofing.

Been watching your videos for ages now and it's safe to say I bought a 4x4, got into exploring, camping and touring, because of your genuine character, avoiding all the BS that most people will receive at aftermarket accessory stores. I quickly saw what is necessity and what is just wasted money if done incorrectly, so you have saved me tonnes of money that I could actually use on getting out and adventuring. Keep up the awesome vids and the no BS straight to the point content. Hard to find genuine characters these days, so stick with your good ethics as I'm sure it is appreciated by many. 😎

RONNY OLE BOY !!! I'm a 40 yr Master Tech, and this is the BEST video concerning multiple battery systems. You cover everything and you have more safety recommendations and warnings than any 2 other videos combined. This alone is worth the watch for DIYers, but you even cover all the bases (Yank term there). Keep up d'good work.

The dual battery in parallel is not too bad, especially if you can isolate one with a low voltage cut out. Team that with a lithium jumper pack just in case you get it wrong and it's a decent weekender system.

A comment on the use of crimping. I only use crimps, however my crimping tools are proper tools, not glorified pair of pliers. if the crimp has been done properly there will be no problems. Soldering is only needed if you dont trust your crimping quality.. P.S. my trade is RAAF trained aircraft elec fitter/avionics tech, 50 years experience.

Probably One of the best videos about auxiliary battery on a Vehicle. Easy to understand even for people with lack of knowledge about car electricity Thanks for your channel

if youre on a budget or only have room for 1 battery a great option is a marine starting battery. its a hybrid design with good cranking amps and better deep cycle capabilities too. get the biggest possible size you can squeeze in there. this gives you high capacity and heavy load capability for winching. make sure the new battery has equal or greater cranking amp ratings (cold cranking amps included)

You and some other are good teachers. I’ve learned from scratch and DIYed my setup with the proper tool etc. When I have discussions with beginners, I referred to you, ASPW etc and if there willing, I help them instead of sending buying power box etc. My fun is their sense of achievement. Of course you need to budget time when you DIY butI think it’s part of the fun 🍻

Excellent video. It explained things very clearly to me (a novice with car electricals) It showed that my auto electrician friend installed the correct "house"battery system for me.

very very good summary. Years ago I did a dual battery setup and had to collect info from dozens of different sources on how to do it. This video is a great intro that should help avoid most pitfalls.

Well done. I'd also like to add that people don't need to be intimidated by 12v if they don't know anything about it. It's very easy to learn and then you have the skills to diagnose, repair, modify, etc.

In the old days, I used a dual diode battery isolator. Works great and very simple. The batteries never see each other electrically. Even a simple high current relay that parallels them only when engine is running.

Great video! Thank you for taking the time to make this video. I'm going to share it with everyone I know who is interested in multi-battery systems.

For 4x4 travel, one needs to become something of a multi-faceted technician. On the vehicle, accessories, electrics, offroad driving, tech and nav integration. It takes time and effort to get there.

There's so much information in this single video that I don't even know where to begin learning from. Very high quality content! Love it!

If you only camp once or twice a year a cheap battery box setup is going to be better than dragging along a genny.

Great video again. Very informative 👍 I bought my 4wd with dual battery already in and it isn’t the tidiest job, this really makes me want to get it all stripped out and start again with a good neat setup that I know is the goods.

I have been running dual batteries in my 85 model L300 4WD for the past 34 years. I built a software controlled battery linker to jump-start myself if needed. The 2nd battery runs the fridge, HF comms and AIR CTI central tyre inflation. The combination works. Usually I get 4 years out of the lead-acid 120AH aux battery.

After all these years I found what seems to be an informed opinion on a topic I've not seen covered before. I don't see multiple battery systems very often south of the Mason/Dixon line unless there's a winch setup. By the upper border there's a lot of jumping going on due to the cold weather. I'm always called to help out during this time of year. Mostly for the stereo and power tools that I can run on the pickup. For a welder I use a generator kept on a lock box.