battery isolator
Skip it53/100a small market ($392K/yr) — battery isolator doesn't clear our bar today.
Market/yr
$392K
Growth (1y)
+176.4%
Products
30
Brands
15
was 23 a year ago
Sellers
60
Price range
$14.43–$179.04
Returns
3.7%
Rating
4.4★
Skip it
Scored 53/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 104 weeks — +176.4% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.No pronounced peak months · busiest ÷ quietest = 1.5×
Competition
- VEVOR24%
- Nilight16%
- UCkasayfy16%
- KeyLine Chargers13%
- NVX7%
- STINGER6%
- Other (9 brands)18%
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them. 15 brands and 60 sellers compete here.
Brands
15 falling
was 23 a year ago
Sellers
60
Top 5 brand share
75%
Product shelf
All 30 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
Nilight 12V 140 AMP Dual Battery Isolator Auto Manual Voltage Sensitive Relay with Digital Voltmeter Smart VSR Automatic Charger Disconnect w/Voltmeter for Truck RV UTV Boat Can Am
Nilight
$24.264.2★299 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
RECOIL 500 Amp Mobile Audio Battery Isolator and High Current Starter Relay
RECOIL
$53.334.5★299 reviews
UCkasayfy Dual Battery Isolator 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
$21.583.9★73 reviews
UCkasayfy Dual Battery Isolator 12V 140Amp Voltage Sensitive Relay VSR Compatible with UTV Marine Car RV Boat Truck Trailer ATV Camper Moto Not Fit for Lithium Batteries
UCkasayfy
$19.534.4★268 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Decent quality”
“once installed works great”
“works just as it should”
“This battery isolator kit performs exceptionally well”
“Does the job perfectly”
“Good for the price”
“seems pretty durable”
“Hooked up fine”
“Charges like it should”
“Simple to use”
What buyers complain about
“Not for the long run”
“No Installation Instructions”
“Doesn't work how you expect - drains battery constantly”
“Poor Quality”
“Doesn't work how you expect”
“This item is not work at all”
“no charge points on this”
“The heat shrink sleeves could be a little bigger”
“Kinda of a pain to install”
“too expensive”
Top return reasons
- Functionality-Overall17%
- Defective Material/Parts16%
- Size-Overall15%
- Compatibility-Overall9%
- Advertised Vs Actual Product6%
- Amplification6%
- Charging5%
- Assembly/Installation4%
- Product Condition3%
- Value For Money3%