00:00Okay, so if you've ever woken up in your van to a dead starter battery because you ran the fridge
00:04and the fairy lights all night, yeah, I've been there, and it's not a fun morning. The fix is a
00:09dual battery isolator, and I went down a bit of a rabbit hole finding the best ones out there.
00:15These are the top 5 dual battery isolators for camper van power, and I tracked down the best
00:20deals on every single one, so let's get into it. First up is the 150-amp smart battery isolator
00:27switch with dual control. This one's the heavyweight of the group, 150 amps of capacity and it handles
00:33both 12-volt and 24-volt systems automatically, so if you've got a truck or an off-road rig running
00:3824 volts, this is basically the only one on the list that'll play nice. It's a voltage-sensitive
00:44relay, so it connects your batteries when the alternator's charging and cuts them apart the
00:48second your starter battery drops. It's $39.78, which is the priciest here, but it's got a perfect
00:565-star rating with nearly 4,900 sold. If you're running a big inverter or a beefy fridge setup,
01:03that extra headroom is worth it. Next is the dual battery smart isolator, 12-volt, 140 amps.
01:10What I like about this one is that you can actually set the cut-in and cut-out voltages yourself,
01:15which matters a lot more than people realize. Different battery chemistries want different
01:20thresholds, and being able to dial that in means you're not undercharging your house bank or draining
01:25your starter. It works for campers, boats, ATVs, UTVs, yachts, pretty much anything with two
01:31batteries. At $29.03 with a 4.9 rating and over 4,700 sold, this is honestly the sweet spot
01:40for
01:40most people building out a weekend van. Third on the list, and this is the one I'd probably grab
01:45personally, is the 12-volt 140-amp adjustable isolator with the LCD display. That little screen
01:52is such a small thing that makes such a big difference. You can actually see your voltage
01:57in real-time instead of guessing or crawling under the bed with a multimeter. You can adjust
02:02your split-charge settings right there on the unit, no app, no Bluetooth, no nonsense. It's $29.63,
02:10basically the same money as the one before it, with a perfect 5-star rating. For 6 extra bucks over
02:16the
02:17cheapest option, having live voltage readout is a no-brainer. Number 4 is the adjustable voltage
02:23dual battery isolator, 12-volt 140-amp, and this one specifically built to handle lithium and lead
02:29acid. That's a big deal, because a lot of us are running a lithium house bank now with a regular
02:34lead
02:34acid starter battery, and those two want completely different charging voltages. This one lets you set
02:40thresholds that keep both of them happy instead of forcing a compromise. It's $33.16, 5 stars,
02:47over 4,600 sold. If you've made the jump to lithium or you're planning to, this is the safe pick.
02:55And rounding it out at number 5 is the VSR voltage-sensitive relay, 12-volt, 140-amps,
03:01and the headline here is the price, $18.54. That is genuinely cheap for what it does.
03:08It's fully automatic, it senses the charge, links the batteries, disconnects when you shut off,
03:13no switches to remember, no settings to fiddle with. You lose the adjustability in the display,
03:18sure, but if you just want your house battery topped up while you drive and you want to spend
03:23the least money possible, this does the job. 5-star rating, nearly 4,000 sold, and it works in cars,
03:29trucks, and boats. All right, that's the 5. I've dropped links to every single one down in the
03:36description, so go grab whichever fits your build. And if this saved you from a dead battery on a cold
03:42morning, do me a favor and hit that like button and subscribe, I've got a lot more van build stuff
03:46coming. Catch you in the next one.
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