--- title: "side post battery disconnect — Niche Verdict: Skip it (50/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/side-post-battery-disconnect" last_updated: "2026-07-10T03:22:36.786Z" locale: en meta: description: "a small market ($95K/yr) — side post battery disconnect doesn't clear our bar today." "og:description": "a small market ($95K/yr) — side post battery disconnect doesn't clear our bar today." "og:title": "side post battery disconnect — Niche Verdict: Skip it (50/100) | Amazon United States - Flapen" --- Back to Flapen home # **side post battery disconnect** **Skip it****50/100 ** a small market ($95K/yr) — side post battery disconnect doesn't clear our bar today. **Market/yr** **$95K** **Growth (1y)** **+325.2%** **Products** **16** **Brands** **13** was 19 a year ago **Sellers** **17** **Price range** **$7.43–$43.50** **Returns** **2.4%** **Rating** **4.3★** **Skip it** Scored 50/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **5** ×0.30 Growth **87** ×0.30 Competition **42** ×0.20 Quality gap **60** ×0.10 Returns **81** ×0.10 ## **Demand** Weekly Amazon search volume, last 89 weeks — +325.2% year over year. 2K1KHoliday '24Spike '25Spike '26Oct '24Feb '25May '25Aug '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND No pronounced peak months · busiest ÷ quietest = 1.5× ## **Competition** - Malictele28% - Joinfworld10% - A ABIGAIL10% - Sylvil9% - LotFancy7% - GAMA Electronics6% - Other (7 brands)30% The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them. 13 brands and 17 sellers compete here. **Brands** **13 **▼falling was 19 a year ago **Sellers** **17** **Top 5 brand share** **64%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Battery Disconnect Switch Malictele On/Off Side Post Battery Switch 275A 12-48V Power Cut Master Disconnect Isolator for Car Vehicle RV and Boat](https://m.media-amazon.com/images/I/41wvu4MHxfL.jpg) [**Battery Disconnect Switch Malictele On/Off Side Post Battery Switch 275A 12-48V Power Cut Master Disconnect Isolator for Car Vehicle RV and Boat**](https://www.amazon.com/dp/B0D9CX3CQH) Malictele$13.004.5★50828%▲rising 2 ![Side Post Battery Disconnect Switch 12V / 24V 250/750 Amps Knife Blade Isolator Power Cutoff for Marine Car Boat RV ATV Battery Cut Off Shut Off Switch (Horizontal and Vertical)](https://m.media-amazon.com/images/I/31UPG-ObqXL.jpg) [**Side Post Battery Disconnect Switch 12V / 24V 250/750 Amps Knife Blade Isolator Power Cutoff for Marine Car Boat RV ATV Battery Cut Off Shut Off Switch (Horizontal and Vertical)**](https://www.amazon.com/dp/B07Z4TTH1V) A ABIGAIL$13.014.5★2,09310%▲rising 3 ![Sylvil Knife Blade Master Switch 3.7 3.1 Side Post Knife Blade Battery Disconnect Switch Power Battery Quick Shutoff Switch Horizontal Blade for Boat Truck RV Car Accessories (Circular Hole)](https://m.media-amazon.com/images/I/41nRj394mOL.jpg) [**Sylvil Knife Blade Master Switch 3.7 3.1 Side Post Knife Blade Battery Disconnect Switch Power Battery Quick Shutoff Switch Horizontal Blade for Boat Truck RV Car Accessories (Circular Hole)**](https://www.amazon.com/dp/B0D9L8BLYK) Sylvil$10.004.6★859%▼falling 4 ![Joinfworld Side Post Battery Disconnect Switch 12V-48V 275A Waterproof Marine Battery Cut Off Switch 12 Volt for Car RV Boat ATV UTV Vehicles](https://m.media-amazon.com/images/I/41sBfmepP0L.jpg) [**Joinfworld Side Post Battery Disconnect Switch 12V-48V 275A Waterproof Marine Battery Cut Off Switch 12 Volt for Car RV Boat ATV UTV Vehicles**](https://www.amazon.com/dp/B0DXF88ZC1) Joinfworld$15.744.3★2,6009%▲rising 5 ![LotFancy Side Post Battery Disconnect Switch for Auto Truck RV Boat Marine Pack of 2 12V 24V Battery Cutoff Switch with Long Bolt](https://m.media-amazon.com/images/I/418xSwcMIXL.jpg) [**LotFancy Side Post Battery Disconnect Switch for Auto Truck RV Boat Marine Pack of 2 12V 24V Battery Cutoff Switch with Long Bolt**](https://www.amazon.com/dp/B085D9SRZR) LotFancy$10.024.3★1,6587%▼falling 6 ![Side Post Battery Master Disconnect Switch](https://m.media-amazon.com/images/I/41PCMwHYGFL.jpg) [**Side Post Battery Master Disconnect Switch**](https://www.amazon.com/dp/B001N72FES) GAMA Electronics$12.924.3★1,0866%▲rising 7 ![ON/Off Battery Disconnect Switch 12V-48V 300A Side Post Battery Disconnect GM Car Truck Marine Boat RV Trailer Golf Cart Heavy Duty Battery Kill Switch (Corrosion-Resistance Removable Knob)](https://m.media-amazon.com/images/I/410LEAVAAoL.jpg) [**ON/Off Battery Disconnect Switch 12V-48V 300A Side Post Battery Disconnect GM Car Truck Marine Boat RV Trailer Golf Cart Heavy Duty Battery Kill Switch (Corrosion-Resistance Removable Knob)**](https://www.amazon.com/dp/B0F7G6LD4W) MOTOFLEX$22.324.3★1905%▼falling 8 ![FASTSTORM Side Post Remote Battery Disconnect Switch 12V 250A Negative Battery Cut Off Switch Anti-Theft Kill Switch Kit Upgrade Prevent Battery Drain for Car Truck RV Auto Boat Vehicle etc](https://m.media-amazon.com/images/I/41zNIBnpUEL.jpg) [**FASTSTORM Side Post Remote Battery Disconnect Switch 12V 250A Negative Battery Cut Off Switch Anti-Theft Kill Switch Kit Upgrade Prevent Battery Drain for Car Truck RV Auto Boat Vehicle etc**](https://www.amazon.com/dp/B0DMP2PYKT) FASTSTORM$31.354.0★1075%▼falling 9 ![Banseko Side Post Car Battery Disconnect SwitchCar Battery Terminal Link Quick SwitchBattery Master Switch Isolator for Power Disconnect Cut Off (with Long Bolt)](https://m.media-amazon.com/images/I/41TsRnrMl5L.jpg) [**Banseko Side Post Car Battery Disconnect SwitchCar Battery Terminal Link Quick SwitchBattery Master Switch Isolator for Power Disconnect Cut Off (with Long Bolt)**](https://www.amazon.com/dp/B09N3BK2S5) Banseko$7.433.7★3534%▼falling 10 ![Side Post Remote Battery Disconnect Switch 12V 250A Negative Battery Cut Off Switch Anti-Theft Kill Switch Kit Upgrade Prevent Battery Drain for Car Truck RV Auto Boat Vehicle etc](https://m.media-amazon.com/images/I/41HDElHD3yL.jpg) [**Side Post Remote Battery Disconnect Switch 12V 250A Negative Battery Cut Off Switch Anti-Theft Kill Switch Kit Upgrade Prevent Battery Drain for Car Truck RV Auto Boat Vehicle etc**](https://www.amazon.com/dp/B0DW8YBVQ5) Trosfina$34.553.7★813%▲rising 11 ![Ampper Side Post Battery Disconnect Switch 12V 24V Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt)](https://m.media-amazon.com/images/I/41CL9tk44SL.jpg) [**Ampper Side Post Battery Disconnect Switch 12V 24V Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt)**](https://www.amazon.com/dp/B07JYDY7FQ) Ampper$12.354.6★2,1173%—flat 12 ![Side Post Battery Disconnect Switch On/Off 12-48V Side Post Battery Switch Heavy-Duty Battery Disconnect Switch for Cars Vehicles RVs and Boats](https://m.media-amazon.com/images/I/41XO-1DdDHL.jpg) [**Side Post Battery Disconnect Switch On/Off 12-48V Side Post Battery Switch Heavy-Duty Battery Disconnect Switch for Cars Vehicles RVs and Boats**](https://www.amazon.com/dp/B0DMZW28NH) Trosfina$14.734.5★2363%▼falling 13 ![Ampper Side Post Battery Disconnect Switch 12V - 48V Marine Battery Switch Disconnect Power Cut Shut Off for Car RV and Boat (On/Off)](https://m.media-amazon.com/images/I/41oOBQk61tL.jpg) [**Ampper Side Post Battery Disconnect Switch 12V - 48V Marine Battery Switch Disconnect Power Cut Shut Off for Car RV and Boat (On/Off)**](https://www.amazon.com/dp/B0BZD1KDF8) Ampper$13.464.6★3753%—flat 14 ![ZOZOMOTORS 3/8 Side Post Remote Battery Disconnect Switch 12V Battery Kill Switch for Car Truck RV Camper UTV Anti Theft Battery Cut/Shut Off Switch 200/1000 AMP Heavy Duty On/Off](https://m.media-amazon.com/images/I/51OfBDMOsnL.jpg) [**ZOZOMOTORS 3/8 Side Post Remote Battery Disconnect Switch 12V Battery Kill Switch for Car Truck RV Camper UTV Anti Theft Battery Cut/Shut Off Switch 200/1000 AMP Heavy Duty On/Off**](https://www.amazon.com/dp/B0C6HXBPHY) ZOZOMOTORS$43.504.1★2142%▼falling 15 ![Side Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle](https://m.media-amazon.com/images/I/41Z-NsSLzmL.jpg) [**Side Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle**](https://www.amazon.com/dp/B09MRHKLGH) COZYEHOO$13.854.5★2,7142%—flat **~~Showing 15 of 16 — show all ~~** ## **Product shelf** All 16 tracked products in this niche. Top sellersNewestTrending [![Battery Disconnect Switch Malictele On/Off Side Post Battery Switch 275A 12-48V Power Cut Master Disconnect Isolator for Car Vehicle RV and Boat](https://m.media-amazon.com/images/I/41wvu4MHxfL.jpg)**Battery Disconnect Switch Malictele On/Off Side Post Battery Switch 275A 12-48V Power Cut Master Disconnect Isolator for Car Vehicle RV and Boat** Malictele**$13.00**4.5★508 reviews](https://www.amazon.com/dp/B0D9CX3CQH) [![Side Post Battery Disconnect Switch 12V / 24V 250/750 Amps Knife Blade Isolator Power Cutoff for Marine Car Boat RV ATV Battery Cut Off Shut Off Switch (Horizontal and Vertical)](https://m.media-amazon.com/images/I/31UPG-ObqXL.jpg)**Side Post Battery Disconnect Switch 12V / 24V 250/750 Amps Knife Blade Isolator Power Cutoff for Marine Car Boat RV ATV Battery Cut Off Shut Off Switch (Horizontal and Vertical)** A ABIGAIL**$13.01**4.5★2,093 reviews](https://www.amazon.com/dp/B07Z4TTH1V) [![Sylvil Knife Blade Master Switch 3.7 3.1 Side Post Knife Blade Battery Disconnect Switch Power Battery Quick Shutoff Switch Horizontal Blade for Boat Truck RV Car Accessories (Circular Hole)](https://m.media-amazon.com/images/I/41nRj394mOL.jpg)**Sylvil Knife Blade Master Switch 3.7 3.1 Side Post Knife Blade Battery Disconnect Switch Power Battery Quick Shutoff Switch Horizontal Blade for Boat Truck RV Car Accessories (Circular Hole)** Sylvil**$10.00**4.6★85 reviews](https://www.amazon.com/dp/B0D9L8BLYK) [![Joinfworld Side Post Battery Disconnect Switch 12V-48V 275A Waterproof Marine Battery Cut Off Switch 12 Volt for Car RV Boat ATV UTV Vehicles](https://m.media-amazon.com/images/I/41sBfmepP0L.jpg)**Joinfworld Side Post Battery Disconnect Switch 12V-48V 275A Waterproof Marine Battery Cut Off Switch 12 Volt for Car RV Boat ATV UTV Vehicles** Joinfworld**$15.74**4.3★2,600 reviews](https://www.amazon.com/dp/B0DXF88ZC1) [![LotFancy Side Post Battery Disconnect Switch for Auto Truck RV Boat Marine Pack of 2 12V 24V Battery Cutoff Switch with Long Bolt](https://m.media-amazon.com/images/I/418xSwcMIXL.jpg)**LotFancy Side Post Battery Disconnect Switch for Auto Truck RV Boat Marine Pack of 2 12V 24V Battery Cutoff Switch with Long Bolt** LotFancy**$10.02**4.3★1,658 reviews](https://www.amazon.com/dp/B085D9SRZR) [![Side Post Battery Master Disconnect Switch](https://m.media-amazon.com/images/I/41PCMwHYGFL.jpg)**Side Post Battery Master Disconnect Switch** GAMA Electronics**$12.92**4.3★1,086 reviews](https://www.amazon.com/dp/B001N72FES) [![ON/Off Battery Disconnect Switch 12V-48V 300A Side Post Battery Disconnect GM Car Truck Marine Boat RV Trailer Golf Cart Heavy Duty Battery Kill Switch (Corrosion-Resistance Removable Knob)](https://m.media-amazon.com/images/I/410LEAVAAoL.jpg)**ON/Off Battery Disconnect Switch 12V-48V 300A Side Post Battery Disconnect GM Car Truck Marine Boat RV Trailer Golf Cart Heavy Duty Battery Kill Switch (Corrosion-Resistance Removable Knob)** MOTOFLEX**$22.32**4.3★190 reviews](https://www.amazon.com/dp/B0F7G6LD4W) [![FASTSTORM Side Post Remote Battery Disconnect Switch 12V 250A Negative Battery Cut Off Switch Anti-Theft Kill Switch Kit Upgrade Prevent Battery Drain for Car Truck RV Auto Boat Vehicle etc](https://m.media-amazon.com/images/I/41zNIBnpUEL.jpg)**FASTSTORM Side Post Remote Battery Disconnect Switch 12V 250A Negative Battery Cut Off Switch Anti-Theft Kill Switch Kit Upgrade Prevent Battery Drain for Car Truck RV Auto Boat Vehicle etc** FASTSTORM**$31.35**4.0★107 reviews](https://www.amazon.com/dp/B0DMP2PYKT) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**19% *“The switch is good quality”* **Battery Life**15% *“Great battery switch”* **Advertised Vs Actual Product**14% *“As advertised”* **Efficiency**12% *“It works flawlessly”* **Assembly/Installation**11% *“Easy install”* **Value For Money**6% *“Worth it”* **Connectivity-Overall**3% *“Hook up was easy”* **Functionality-Overall**2% *“Simple function works great”* **Ease Of Use**2% *“EASY”* **Strength**1% *“Not flimsy at all”* ### **What buyers complain about ** **Functionality-Overall**13% *“Doesn't work”* **Size-Overall**11% *“Not a perfect fit”* **Connectivity-Overall**9% *“Does not fully disconnect”* **Quality-Overall**7% *“Trash”* **Battery Life**6% *“It was slowly draining the power from my cars battery”* **Mounting**6% *“Missing mounting bolt”* **Instructions/User Manual/Troubleshooting**6% *“No instructions”* **Durability**6% *“Broke immediately and feels cheap”* **Touch/Button Controls**4% *“The knob broke off after a few weeks of use”* **Compatibility-Overall**3% *“not for ac delco battery”* #### **Top return reasons**- Size-Overall43% - Functionality-Overall13% - Compatibility-Overall10% - Advertised Vs Actual Product7% - Defective Material/Parts6% - Connectivity-Overall5% - Mounting4% - Assembly/Installation3% - Quality-Overall1% - Value For Money1%