dual battery isolator kit
Skip it37/100a small market ($105K/yr) — dual battery isolator kit doesn't clear our bar today.
Market/yr
$105K
Growth (1y)
+127.6%
Products
10
Brands
7
was 15 a year ago
Sellers
12
Price range
$34.65–$179.04
Returns
3.2%
Rating
4.4★
Skip it
Scored 37/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 104 weeks — +127.6% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.No pronounced peak months · busiest ÷ quietest = 1.4×
Competition
- VEVOR50%
- KeyLine Chargers21%
- UCkasayfy12%
- Nilight8%
- ISINSWIFT3%
- ARONOVA2%
- Other (1 brands)2%
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack. 7 brands and 12 sellers compete here.
Brands
7 falling
was 15 a year ago
Sellers
12
Top 5 brand share
96%
Product shelf
All 10 tracked products in this niche.
VEVOR Split Charge Relay Kit 6mtr 12V Automatic Dual Battery Isolator Kit with 140AMP Voltage Sense Relay VSR Compatible with RV Marine Car Vehicle Truck Caravan Camper Yacht ATV UTV Boats Workshop
VEVOR
$49.124.4★497 reviews
Dual Battery Isolator Kit 12V - 140 Amp Voltage Sensitive Relay (VSR) for Dual Battery Setup
KeyLine Chargers
$113.154.5★1,125 reviews
UCkasayfy Dual Battery Isolator Kit 12V 140amp Voltage Sensitive Relay VSR Smart Battry Isolator Compatible with UTV Marine car RV Boat Truck Trailer ATV Camper Moto Not Fit for Lithium Batteries
UCkasayfy
$47.924.3★109 reviews
Nilight 12V 140AMP Dual Battery Isolator Kit with 6 AWG Power Cable Terminal Voltage Sensitive Relay Smart VSR Automatic Charger Disconnect for Truck Van RV ATV UTV Boat Can Am
Nilight
$92.514.2★299 reviews
VEVOR Dual Battery Isolator Kit 12V 300 Amp 20 ft 2AWG Manual and Automatic VSR Voltage Sensitive Relay with Voltmeter LCD Screen Smart Battery Isolator Compatible with Lithium Batteries for UTV
VEVOR
$120.154.0★10 reviews
Dual Battery Isolator Kit Heavy Duty 300 AMP 1000 AMP Peak Voltage Sensitive Relay VSR for 12 Volt Systems - Works with All Batteries Types Including Lithium and LiFePO4
KeyLine Chargers
$179.044.4★63 reviews
VEVOR Dual Battery Isolator Kit 12V 140 Amp 20 ft 6AWG Manual and Automatic VSR Voltage Sensitive Relay with Voltmeter LCD Screen Smart Battery Isolator Compatible with Lithium Batteries for UTV
VEVOR
$59.864.7★17 reviews
ISINSWIFT Dual Battery Isolator Kit 140 Amp 12v Voltage Sensitive Relay (VSR) Automatic Disconnect Switch | Cars RV UTV ATV Marine Switches for Bateries
ISINSWIFT
$47.474.6★23 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Took about 30 minutes to install, works great”
“well made”
“Now You Can Accessorize While Protecting Your Starter Battery”
“Worked as advertised”
“Does the job perfectly”
“seems pretty durable”
“Hooked up fine”
“Keeps my chassis batteries charged”
“Fit good”
“Seems heavy duty”
What buyers complain about
“then the metal bracket that holds the battery was not manufactured correctly”
“Inaccurate wire sizes poor connectors”
“still pulling from crank battery”
“It didn't work for me”
“the directions were a very poor translation”
“Junk”
“Had to tweak it to install”
“Failed from the start”
“the pre-installed wire connectors do not fit in the fuse blocks”
“too expensive”
Top return reasons
- Size-Overall16%
- Functionality-Overall13%
- Compatibility-Overall13%
- Defective Material/Parts11%
- Charging8%
- Amplification7%
- Advertised Vs Actual Product5%
- Weight Heavy4%
- Value For Money3%
- Assembly/Installation3%