Smart Dual Battery 140A Isolator - Auto/Boat/RV
From JayCorp
| Price: | $79.80 |
Product Description
A smart isolator is the ultra-simple and most technologically advanced method of automatic battery isolation. These units can be installed between batteries with a common ground to automatically control the charging process to the batteries but continue to provide isolation when a charging source is unavailable. The small size and rugged construction of these units allow for quick simple installation for even the most novice DIYer. The smart isolator is also "Dual Sensing" which senses the charge of both batteries. If either battery is receiving a charge, e.g. a battery charger is connected to the auxiliary battery; the relay will engage and charge both batteries. The advanced technology always insures that the first battery is fully charged (13.4v) before connection is made to the second battery. This prevents problems that may result from your charging source being too low in amps to charge all batteries as once. If placed in linear sequence between each battery the isolator units can provide proper charging for several batteries in a multiple battery setup such as in larger boats that may have 2 or more house batteries.How it works:The smart isolator allows two batteries to be charged at the same time. When the engine is started and the start battery reaches 13.4 volts, the relay engages, allowing two battery banks (start and accessory) to be charged simultaneously. When the voltage drops below 12.9 volts (eg the engine is stopped), the relay disengages, separating the batteries. This system eliminates the possibility of draining the start battery and protects sensitive electronic equipment powered from the house battery from harmful engine start up spikes.
Product Details
- Amazon Sales Rank: #71435 in Automotive
- Brand: JayCorp
- Model: VSR12
Features
- 12V 140A smart isolator with Cut-In:13.4V, Cut-Out:12.9V
- Easy 3 wire connection at the battery. No need to bypass existing alternator wiring
- The smart isolator has no voltage drop. Conventional diode isolators incur a minimum of 0.6 volt drop
- Compact size - No large heat sink
- Easy to install
Most helpful customer reviews
5 of 5 people found the following review helpful.I purchased this VSR to isolate a battery in my truck camper. It is a little more expensive than a conventional battery isolator but it is smaller and easier to connect. I have tested it with my volt meter and thus far it has worked perfectly. It turns on at 13.3 volts (which protects your aux battery from being used as a starting battery by switching on only once the staring battery is fully charged). And cuts out at 12.8 volts (which keeps you from draining your starting battery when using your aux battery without the engine running). A nice feature is a little LED light that indicates when it's engaged. Also, it's rated for 140 amps, which is well over my electrical needs.There is an option to buy this same VSR with a kit, but I opted not to buy the kit because I needed higher gauge wire, and I could get it at a lower overall cost. Because of the thicker wire, I had to modify the wire inlets a little, but it was easy. I would recommend this product to anyone looking to isolate a battery.
2 of 2 people found the following review helpful.I am using this in a Ford e350 van, converted to a camper, to maintain the truck battery under the hood and maintain 2 deep cell marrine batteries in the back, which i run a fridge/micro, etc. with using a 1500 watt inverter. I was told by many old school camper guys this setup wouldn't work, but it works great! The VSR is small and lightweight, and simple to hookup and use. It has one simple LED light letting you know where it's sending voltage. Proper gauge wire is imperative, i have 6 gauge run to all batteries, with a 150 amp ANL fuse, and have had no trouble at all with this unit. I returned a much larger, heat synced Northern tool unit after i saw the difference in size. This one is great under the hood of a van or any tight space.Word of note: I did have to trim some of the plastic away where my wires run in and out of the unit. It's 2 pieces and you have to trim away part of the cover if you're using proper gauge wire to get it to sit on the base correctly. This will make sense when you see the unit in person, and it's pretty obvious the manufacturer intended for you to cut or drill depending on your application.
1 of 1 people found the following review helpful.Worked as descripted for six months without any problem charging auxilary battery when depleted and protecting the main one from discharging during stationnary period.Seem to be a good and reliable product..
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