Is 390 watch battery profitable to sell on Amazon United States?

The niche generates $86K/yr across 10 tracked products. 90-day search growth is +15.5%. Flapen's verdict: Skip it (39/100).

How competitive is the 390 watch battery niche?

7 brands and 46 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in 390 watch battery?

Top complaints mined from reviews: Battery Life, Value For Money, Durability. The return rate is 0.6%.

When does demand for 390 watch battery peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the 390 watch battery niche?

Listings span $4.09–$9.95; the average listing price is $6.22 (sweet spot $15–$100). The average incumbent carries 1,914 reviews — the moat a new listing must climb.

390 watch battery

Skip it

Prices mostly outside the sweet spot ($4.09–$9.95) — this niche doesn't clear our bar today.

Conversion

Incredible17.2%

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

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Review moat

Okay1,913.9

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+15.5%

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

Brand share

Bad91%

top-5 brand share — brand-locked demand

Market size

Bad$86K

$86K/yr · 81K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Avg price

Bad$6.22

avg listing price — sweet spot $15–$100

Competition

Bad82%

top-5 click share — a locked-up shelf

Price range

Bad$4.09–$9.95

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

According to Flapen's Amazon United States niche tracking, 390 watch battery is a $86K/yr Amazon United States market (81K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 39/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

390 watch battery market data

Units sold / yr: 13K–15K; avg 1,250–1,500/product
Revenue / yr: $78K–$93K; units × avg price
Conversion rate: 17.2%
Avg BSR: #274
Page quality: 0%
Prime: 100%
Sponsored: 60%
Out of stock: 0.0%
Avg brand age: 76 months
Avg seller age: 168 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

Renata44%
PKCELL16%
DURACELL13%
Energizer12%
YKM6%
LOOPACELL5%
Open — no brand owns it (1 brand, 4%)

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — +15.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top 390 watch battery search terms

390 watch battery22K/yr +16.8%21.5% conv.
390 battery11K/yr +11.6%16.4% conv.
swatch watch battery9K/yr +29.9%4.2% conv.
swatch battery8K/yr +28.6%5.3% conv.
renata 390 watch battery7K/yr +25.2%25.3% conv.
swatch battery replacement7K/yr +12.3%4.3% conv.
battery 3904K/yr -10.2%19.9% conv.
swatch battery 3903K/yr +29.1%25.8% conv.
watch battery 390 swatch3K/yr +11.7%26.8% conv.
watch battery 3903K/yr +9.7%18.9% conv.

All search terms

Top 390 watch 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Renata 390 SR1130SW Batteries - 1.55V Silver Oxide 390 Watch Battery (2 Count)

Renata$5.634.7★5,278 rev

PKCELL LR1130 Battery LR54 AG10 389 390 Button Cell Battery 1.5V Alkaline Button Batteries (10 Count (Pack of 1))

PKCELL$4.744.6★3,735 rev

Energizer 390/389 Silver Oxide Cd/5

Energizer$9.954.6★1,483 rev

Duracell 389/390 Silver Oxide Button Battery 1 Count Pack 389/390 1.5 Volt Battery Long-Lasting for Watches Medical Devices Calculators and More

DURACELL$5.444.7★2,197 rev

10 Pack LR1130 Battery L1131f L1131 L1131c 390 LR54 1.5V Alkaline Battery

YKM$4.094.6★991 rev

Newest

by launch date

PKCELL LR1130 Battery LR54 AG10 389 390 Button Cell Battery 1.5V Alkaline Button Batteries (10 Count (Pack of 1))

PKCELL$4.743,735 rev

1y ago

Fuspower LR1130 Watch Battery 1.5V: 389 390 Alkaline Batteries 10 Pack - LR54 Button Coin Cell for Calculator Everyday Replacement - Fathers Day Laser Pointers Graduation Toys

Fuspower$5.66625 rev

2y ago

10 Pack LR1130 Battery L1131f L1131 L1131c 390 LR54 1.5V Alkaline Battery

YKM$4.09991 rev

2y ago

BATTERY WATCH 1.5V 389

DURACELL$5.93110 rev

11y ago

Renata 394 SR936SW Batteries - 1.55V Silver Oxide 394 Watch Battery (2 Count)

Renata$5.223,797 rev

11y ago

What buyers say about 390 watch battery

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

What buyers love

Battery Life28%

“Batteries worked well”

Advertised Vs Actual Product17%

“As advertised”

Value For Money16%

“Reasonable price”

Size-Overall12%

“Exact fit”

Quality-Overall6%

“Orders arriving on time and quality”

Ease Of Use6%

“Ease of use”

Durability4%

“Longevity, time will tell”

Charging2%

“Really got a charge when I got these”

Efficiency2%

“Working great”

Correct Contents1%

“correct number of correct item”

What buyers complain about

Battery Life43%

“Battery sent to me was dead”

Value For Money12%

“It may cost more”

Durability11%

“Dies fast”

Size-Overall10%

“Not the right size”

Quality-Overall6%

“Poor Quality”

Charging4%

“lose charge quickly”

Touch/Button Controls3%

“Need button”

Assembly/Installation3%

“had not installed them yet”

Functionality-Overall3%

“did not work”

Compatibility-Overall2%

“ones received did not indicate this compatibility”

Top return reasons

Size-Overall43%

Functionality-Overall17%

Battery Life13%

Advertised Vs Actual Product6%

Defective Material/Parts6%

Compatibility-Overall4%

Value For Money3%