Is group 31 battery profitable to sell on Amazon United States?

The niche generates $430K/yr across 30 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is +6.4%. Flapen's verdict: Skip it (46/100).

How competitive is the group 31 battery niche?

13 brands and 48 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 87% of demand.

What do buyers complain about in group 31 battery?

Top complaints mined from reviews: Charging, Battery Life, Durability. The return rate is 2.3%.

When does demand for group 31 battery peak?

Demand peaks in Jan–Feb–Apr–May–Jun–Dec; the busiest month runs 4.9× the quietest.

What does it cost to enter the group 31 battery niche?

Listings span $86.68–$520.36; the average listing price is $253.27 (sweet spot $15–$100). The average incumbent carries 486 reviews — the moat a new listing must climb.

group 31 battery

Skip it

Prices mostly outside the sweet spot ($86.68–$520.36) — this niche doesn't clear our bar today.

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Great485.93

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.3%

return rate — above 5% kills the launch gate

Market size

Good$430K

$430K/yr · 288K searches

Competition

Good52%

top-5 click share — leaders hold, buyers still browse

Avg price

Okay$253.27

avg listing price — sweet spot $15–$100

Growth

Okay+6.4%

90-day search growth — must beat 0% to launch

Brand share

Okay87%

top-5 brand share — brands hold most of the demand

Conversion

Bad0.6%

search→purchase rate — share of searches ending in a sale

Price range

Bad$86.68–$520.36

cheapest to priciest tracked listing — scored on the share inside $15–$100

Signals High Price

According to Flapen's Amazon United States niche tracking, group 31 battery is a $430K/yr Amazon United States market (288K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Jan–Feb–Apr–May–Jun–Dec. Verdict: Skip it — 46/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

group 31 battery market data

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: $380K–$507K; units × avg price
Conversion rate: 0.6%
Avg BSR: #203
Page quality: 0%
Prime: 67%
Sponsored: 100%
Out of stock: 1.7%
Avg brand age: 50 months
Avg seller age: 176 days

Competition & brand share

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

87%

Top 20: 100%

Top-5 click share

52%

Top 20: 87%

Open market

10%

Interstate Batteries69%
WEIZE7%
VEMDIA5%
Renogy4%
Mighty Max Battery4%
Litime3%
Open — no brand owns it (7 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 53 weeks — +6.4% search growth over the last 90 days.

Peak months: Jan, Feb, Apr, May, Jun, Dec · busiest ÷ quietest = 4.9×

Open Trend

Top group 31 battery search terms

interstate battery57K/yr -9.5%0.2% conv.
group 31 battery37K/yr +25.9%0.3% conv.
interstate deep cycle marine battery21K/yr +54.0%0.6% conv.
group 31 lithium battery17K/yr +27.8%0.3% conv.
group 31 agm battery18K/yr +6.7%0.9% conv.
interstate batteries23K/yr -15.0%0.2% conv.
interstate marine battery14K/yr +29.3%0.6% conv.
interstate car battery18K/yr -34.1%0.1% conv.
interstate group 31 agm battery7K/yr +44.6%0.7% conv.
group 31 marine battery6K/yr +67.4%0.4% conv.

All search terms

Top group 31 battery 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Interstate Batteries Marine/RV Battery 12V 100Ah 825CCA Dual Purpose Power Pure Lead AGM RV & Marine Starting Replacement Battery (Group Size 31M) Boats RVs (8-31MAGMDC / 31M-AGM-A)

Interstate Batteries$286.154.6★55 rev

Interstate Batteries Marine Deep Cycle Battery 12V 100Ah 925CCA (31-AGM5) Pure Matrix Power Commercial Battery Pure Lead AGM Replacement (Group 31) Auxiliary Units APU Starting Engines Heavy Duty

Interstate Batteries$280.374.1★55 rev

Interstate Batteries Marine/RV Battery 12V 70Ah 750CCA (24M-AGM) Dual Purpose Power Pure Lead AGM RV & Marine Starting Replacement Battery (Group Size 24) Boats RVs

Interstate Batteries$256.084.6★36 rev

Interstate Batteries 12V 35AH Sealed Lead Acid (SLA) AGM Deep Cycle Battery (DCM0035) Insert Terminals

Interstate Batteries$106.294.4★1,796 rev

12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle with Smart 100A BMS & Low Temp Cut-Off 15000 Cycles 10-Year Life Lightweight Replacement for RV Solar Marine Home Backup Off-Grid

VEMDIA$146.734.1★33 rev

Newest

by launch date

12V 100Ah LiFePO4 Battery Mini size Rechargeable Lithium Batteries with 15000+Deep Cycles Low-Temp Protection 1280Wh 100A BMS Perfect for RV Home Energy Storage Trolling Motors Solar Off-Grid

Balanergy$138.2010 rev

4mo ago

Mighty Max Battery MM-G31M 12V 110Ah Group Size 31M Deep-Cycle Marine AGM Dual-Purpose Starting & Deep Discharge 825 CCA 1000 MCA 240 RC Spill-Proof Maintenance-Free Battery

Mighty Max Battery$247.711,682 rev

6mo ago

12V 100Ah LiFePO4 Lithium Battery- BCI Group 31 Deep Cycle RV LiFePO4 Battery with Low-Temp Protection 100A BMS 1280Wh Max.15000 Cycles 10-Year Lifespan for RV Solar Trolling Motor Marine

SUPER EMPOWER$148.2079 rev

9mo ago

Mighty Max Battery MM-G31 Start and Stop Car BCI Group 31 12V 100AH 140RC 900 CCA Rechargeable AGM Car battery

Mighty Max Battery$223.521,307 rev

10mo ago

Interstate Batteries Marine/RV Battery 12V 85Ah 975MCA (Group Size 27M) Dual Purpose Power Pure Lead AGM RV & Marine Starting Replacement Battery (27M-AGM) Boats RVs

Interstate Batteries$411.153 rev

10mo ago

What buyers say about group 31 battery

What buyers praise and complain about, mined from review topics.

What buyers love

Battery Life39%

“Excellent battery”

Quality-Overall11%

“Great product, exactly what I ordered”

Value For Money10%

“Good price”

Charging8%

“They charge fast”

Weight Light7%

“Im really happy with its light weight and power output”

Size-Overall5%

“Perfect fit”

Durability3%

“reliability”

Strength2%

“Well maintained,”

Efficiency2%

“They have performed well”

Advertised Vs Actual Product2%

“Works as expected”

What buyers complain about

Charging30%

“Charges Very slow”

Battery Life25%

“Bad Battery”

Durability6%

“Short life”

Size-Overall5%

“Amazon is saying it does not fit”

Value For Money5%

“Super expensive these days”

Quality-Overall5%

“Poor performance”

Functionality-Overall4%

“Started zero turn Bad Boy immediately”

Connectivity-Overall2%

“none will connect to app to read BMS”

Assembly/Installation2%

“I should have taken that out for an easier install”

Motor Issues2%

“took it home put it on charge and charger said fully charge so I put the trolling motor to it and no power”

Top return reasons

Size-Overall37%

Battery Life13%

Charging10%

Compatibility-Overall7%

Functionality-Overall6%

Advertised Vs Actual Product6%

Defective Material/Parts6%

Weight Heavy4%

Value For Money4%