12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck

Name: 12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck
Brand: Tools, Home & Hobby
SKU: BMH9TPSNNT
Price: 169.94 USD
Availability: InStock

$169.94

- 0% Sold out

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Returns

We accept returns within 30 days of delivery. Items must be unworn, unwashed, and returned with original tags attached.

Care Instructions

To preserve the beauty of your dress, we recommend gentle hand washing or dry cleaning. Do not bleach. Hang or lay flat to dry. Steam or iron on low heat if needed.

Shipping

Orders are processed within 1–3 business days.

Standard Shipping: 5–9 business days — $3.95
Express Shipping: 4–7 business days — $9.95

Delivery times are estimates and may vary depending on your location. Tracking information will be provided once your order has been shipped.

Never worry about a dead battery again! This automatic dual battery isolator kit intelligently cuts in at 13.3V and cuts out at 12.8V, ensuring your primary battery stays charged while efficiently powering a secondary battery. Perfect for RVs, marine use, off-road vehicles, and workshops.

Heavy-Duty 140AMP Voltage Sense Relay (VSR):

Built for high-performance applications, the 140AMP VSR delivers fast, reliable charging while preventing power drain when the engine is off. The rugged, shockproof design withstands extreme conditions, making it ideal for 4x4s, campers, yachts, and ATVs.

Complete 6mtr Wiring Kit for Hassle-Free Installation:

Everything you need is included:

140AMP voltage sense relay (VSR)
6-meter heavy-duty cables
Waterproof connectors & mounting hardware
Clear installation guide

No extra purchases required—just plug, play, and power up your adventure.

IP65 Waterproof & Extreme Environment Ready:

Engineered for durability, this split charge relay features an IP65 waterproof rating, protecting against dust, moisture, and vibrations. Whether you're off-roading, boating, or camping in harsh weather, your power system stays secure.

Universal Compatibility:

Compact yet powerful (2.66" x 2.11" x 2.66"), this 12V isolator kit fits:

RVs, caravans, and camper vans
Trucks, 4x4s, ATVs & UTVs
Boats, yachts & marine applications
Workshop & leisure vehicles

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12V 140AMP Automatic Dual Battery Isolator...

$169.94

Tools, Home & Hobby

12V 140AMP Automatic Dual Battery Isolator Kit with...

$169.94

what our customers say about us

4.9

Based on 100+ Reviews

4.9

12136 Reviews

90%

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E

Emily R.

Verified Buyer

Perfect for a summer wedding

I wore this to my cousin's wedding and felt amazing all day. The fit was exactly as expected, and I received so many compliments. I ordered my usual size S.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 23 2
O

Olivia H.

Verified Buyer

Beautiful dress

Really happy with this purchase. I only wish I had steamed it before trying it on because it arrived with a few wrinkles from shipping.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
S

Sarah T.

Verified Buyer

So flattering

I have a hard time finding dresses that fit my waist properly, but this one was perfect. Very comfortable to wear for several hours.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
C

Chloe W.

Verified Buyer

Worth every dollar

The quality surprised me. The material has a nice weight and doesn't feel see-through at all. I'll definitely order another style.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
A

Amanda K.

Verified Buyer

Engagement photo approved

Bought this for our engagement photos and couldn't be happier. It looked beautiful in natural light and fit perfectly.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
N

Nicole B.

Verified Buyer

Runs slightly roomy

I was between sizes and ordered the larger one. It still looked great, but I probably could have gone with my usual size.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
H

Hannah C.

Verified Buyer

Comfortable all evening

Wore this to a formal dinner and didn't have to adjust it once. It stayed comfortable from start to finish.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
M

Megan L.

Verified Buyer

Love the quality

Beautiful stitching and a really elegant design. It feels much more expensive than it actually is.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
R

Rachel S.

Verified Buyer

True to size

I followed the size chart and ordered a Medium. It fit exactly the way I wanted.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
A

Ashley D.

Verified Buyer

Received so many compliments

Everyone kept asking where I bought this dress. It's simple, elegant, and easy to accessorize.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
L

Lauren P.

Verified Buyer

Vacation favorite

Packed this for my trip to Italy and wore it twice. It's lightweight, comfortable, and photographs beautifully.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
B

Brittany G.

Verified Buyer

Lovely dress

The zipper was a little stiff the first time, but after wearing it once everything worked perfectly. Overall, I'm very happy.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0
K

Kayla N.

Verified Buyer

Helpful customer service

I wasn't sure which size to buy, so I contacted support first. They recommended a Small, and it fit perfectly.

12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck Was this helpful? 0 0

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12V 140AMP Automatic Dual Battery Isolator Kit with 6mtr Cables, Voltage Sense Relay (VSR) for RV, Marine, Truck