---
title: "Group 31 Battery Box — $174K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/group-31-battery-box"
last_updated: "2026-08-11T11:06:32.829Z"
locale: en
meta:
description: "Niche score 51/100 · $174K/yr market · 80K searches/yr. A concentrated shelf (top 5 take 66% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $174K/yr market · 80K searches/yr. A concentrated shelf (top 5 take 66% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Group 31 Battery Box — $174K/yr Amazon US Niche (2026) - Flapen"
---
# **group 31 battery box**
**Worth a look**
Shows sweet-spot pricing room ($16.38–$85.13), but a concentrated shelf (top 5 take 66% of clicks) keeps it on the watch list.
Market size 36Growth 65Conversion 54Competition 32Returns 45Price range 95Avg price 94Brand share 45Review moat 58Quality gap 42
**Price range**
**Incredible****$16.38–$85.13**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$48.34**
avg listing price — sweet spot $15–$100
**Growth**
**Good****+44.4%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****1,182.18**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.5%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Returns**
**Okay****3.4%**
return rate — above 5% kills the launch gate
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$174K**
$174K/yr · 80K searches
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
According to Flapen's Amazon United States niche tracking, group 31 battery box is a $174K/yr Amazon United States market (80K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 51/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **group 31 battery box market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **$193K–$242K**
- units × avg price
- **Conversion rate**
- **4.5%**
- **Avg BSR**
- **#104**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **65%**
- **Out of stock**
- **10.7%**
- **Avg brand age**
- **59 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▼falling
**Sellers**
**76**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**18%**
- Camco47% - attwood14% - NOCO8% - SUNAPEX5% - Newport Vessels4% - Moeller4%
## **Demand & seasonality**
Weekly Amazon search volume, last 58 weeks — +44.4% search growth over the last 90 days.
3K2KPrime Day '25Black Friday '25Spike '26 seasonJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Apr, May, Jun · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/automotive/group-31-battery-box/trend)
## **Top group 31 battery box search terms**
- **group 31 battery box**64K/yr+39.5%4.1% conv. - **marine battery box group 31**5K/yr+56.5%4.2% conv. - **battery box group 31**6K/yr+46.4%4.6% conv. - **group 29 battery box**4K/yr+124.6%4.2% conv. [**All search terms **](https://flapen.com/research/us/automotive/group-31-battery-box/search-terms)
## **Top group 31 battery box products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$17K20%$35K30%$52K40%$70K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Camco Large Battery Box with Straps and Hardware - Group 27 30 31 |Safely Stores RV Automotive and Marine Batteries | Measures Inside 7-1/4 x 13-1/4 x 8-5/8 | (55373) Black**Camco**$20.02**4.6★2,616 rev](https://www.amazon.com/dp/B00EOX2OKS) [2**Camco Large Battery Box with Straps and Hardware - Group 27 30 31 |Safely Stores RV Automotive and Marine Batteries | Measures Inside 7-1/4 x 13-1/4 x 8-5/8 | (55372)**Camco**$18.68**4.6★2,616 rev](https://www.amazon.com/dp/B0024E72GA) [3**Attwood 9084-1 Large Vented Battery Box with Mounting Strap Fits Group 29 and 31 Series Batteries Black**attwood**$24.32**4.5★601 rev](https://www.amazon.com/dp/B0000AY9DQ) [4**NOCO Snap-Top BG27 Battery Box Group 27 12V Battery Box for Marine Automotive RV Boat Camper and Travel Trailer Batteries**NOCO**$16.38**4.7★949 rev](https://www.amazon.com/dp/B0CSTDTGWK) [5**Camco Double Battery Box - Safely Stores RV Automotive and Marine Batteries - Features a Heavy-Duty Corrosion-Resilient Polymer Construction and Measures Inside 21-1/2 x 7-3/8 x 11-3/16 (55375)**Camco**$34.79**4.6★3,411 rev](https://www.amazon.com/dp/B07V4482W1)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**VEVOR Battery Box Group 24-31 Trolling Motor Battery Box Marine Batteries Case with Lock Handles and Rubber-Grommet Cable Holes Stainless Steel Shell Suitable for Cars Boats & Trolling Motors**VEVOR**$44.23**62 rev1y ago](https://www.amazon.com/dp/B0F841NK19) [**SUNAPEX Smart Battery Box 12V/24V Power Center - Multi Ports & Circuit Breaker for Trolling Motor Marine RV & Solar Panel (Pro Battery Not Included)**SUNAPEX**$85.13**169 rev1y ago](https://www.amazon.com/dp/B0DX1GJDWW) [**Trolling Motor Power Center Station Battery Box Fits Group 24/27/31 Size Batteries for Boats Marine RV Outdoor Multi-Function 12V/24V Marine Case w/ 50 AMP Connectors(Battery not Include)**GEARMEISTER**$84.00**61 rev1y ago](https://www.amazon.com/dp/B0DPFCLJNN) [**Battery Box Power Center with USB USB-C Voltage Display External Ports for Group 27 and 31 Batteries. Smart Battery Box for Marine Boat Trolling Motor Outdoor Camping RV**VMAXTANKS**$56.16**37 rev1y ago](https://www.amazon.com/dp/B0DKVT7XRW) [**SUNAPEX Smart Battery Box 12V/24V Power Center - Multi Ports & Circuit Breaker for Trolling Motor Marine RV & Solar Panel (No Battery)**SUNAPEX**$62.86**314 rev2y ago](https://www.amazon.com/dp/B0D7HBQKT5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Redodo Smart Battery Box Fits Group 31/27/24 Size Batteries RV/Marine Battery Box with Multi Ports Waterproof Built-in Volt-Meter for Trolling Motor Camping Solar Panel Boat**Redodo**$80.35**4.4★**▲ 69%**](https://www.amazon.com/dp/B0BZHL9GJ8) [**Attwood 9084-1 Large Vented Battery Box with Mounting Strap Fits Group 29 and 31 Series Batteries Black**attwood**$24.32**4.5★**▲ 58%**](https://www.amazon.com/dp/B0000AY9DQ) [**Camco Double Battery Box - Safely Stores RV Automotive and Marine Batteries - Features a Heavy-Duty Corrosion-Resilient Polymer Construction and Measures Inside 21-1/2 x 7-3/8 x 11-3/16 (55375)**Camco**$34.79**4.6★**▲ 29%**](https://www.amazon.com/dp/B07V4482W1) [**Camco Large Battery Box with Straps and Hardware - Group 27 30 31 |Safely Stores RV Automotive and Marine Batteries | Measures Inside 7-1/4 x 13-1/4 x 8-5/8 | (55372)**Camco**$18.68**4.6★**▲ 25%**](https://www.amazon.com/dp/B0024E72GA) [**Peastorm Lockable Car/RV/Marine Battery Box Adjustable Steel Battery Relocation Kit for Trailer Boat Trolling Motor Kayak (Group 24-31 Black)**peastorm**$79.93**4.2★**▲ 24%**](https://www.amazon.com/dp/B0D3PZGGTY)
**~~View all trending →~~**
## **What buyers say about group 31 battery box**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**18%
*“Powerful battery”*
**Quality-Overall**17%
*“Absolutely brilliant perfect box”*
**Advertised Vs Actual Product**11%
*“Does what it says”*
**Size-Overall**9%
*“Fits perfectly”*
**Value For Money**7%
*“Decent price”*
**Ease Of Use**5%
*“Easy to use”*
**Design-Overall**3%
*“Simple design”*
**Assembly/Installation**2%
*“Easy assembly”*
**Portability**2%
*“It has pretty much everything that even handles are much more comfortable to carry from both sides versus only one in the middle”*
**Durability**2%
*“Durable”*
### **What buyers complain about **
**Size-Overall**10%
*“Measurement of the box are smaller than the provided measurements by inches”*
**Strap/String Quality**8%
*“strap sucked wouldn't tighten down”*
**Strength**8%
*“Extremely flimsy”*
**Quality-Overall**8%
*“Companys quality control is terrible”*
**Durability**6%
*“The meter worked for a couple days then failed”*
**Value For Money**5%
*“price a little high”*
**Thickness**5%
*“this box is so thin”*
**Mounting**5%
*“Cheap made, they mounted the brackets etc”*
**Functionality-Overall**4%
*“Didn't work for me”*
**Battery Life**4%
*“now the battery indicator light doesnt work at all”*
### **Top return reasons **
**Size-Overall**70%
**Advertised Vs Actual Product**5%
**Compatibility-Overall**4%
**Value For Money**3%
**Functionality-Overall**3%
**Strap/String Quality**2%
**Width**2%
**Defective Material/Parts**2%
**Quality-Overall**1%
**Water Resistance**1%
## **Common questions**
- **Is group 31 battery box profitable to sell on Amazon United States?**
- The niche generates $174K/yr across 17 tracked products. 90-day search growth is +44.4%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the group 31 battery box niche?**
- 13 brands and 76 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in group 31 battery box?**
- Top complaints mined from reviews: Size-Overall, Strap/String Quality, Strength. The return rate is 3.4%.
- **When does demand for group 31 battery box peak?**
- Demand peaks in Apr–May–Jun; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the group 31 battery box niche?**
- Listings span $16.38–$85.13; the average listing price is $48.34 (sweet spot $15–$100). The average incumbent carries 1,182 reviews — the moat a new listing must climb.
## **Related niches in Automotive**
- 72 [**brake bleeder kit**](https://flapen.com/research/us/automotive/brake-bleeder-kit)$2.2M/yr+8.2%**Launch it**- 72 [**gas can pump**](https://flapen.com/research/us/automotive/gas-can-pump)$1.7M/yr+20.1%**Launch it**- 72 [**dewalt hedge trimmer**](https://flapen.com/research/us/automotive/dewalt-hedge-trimmer)$1.6M/yr+158.2%**Launch it**- 72 [**iron eraser**](https://flapen.com/research/us/automotive/iron-eraser)$107K/yr>1,000%**Worth a look**- 72 [**marine fuel line**](https://flapen.com/research/us/automotive/marine-fuel-line)$198K/yr+104.3%**Worth a look**- 72 [**garden hose filter**](https://flapen.com/research/us/automotive/garden-hose-filter)$729K/yr+110.7%**Worth a look**[**All Automotive niches **](https://flapen.com/research/us/automotive)