Np4-12 12v 4.0ah Battery
FailShoppers spend an estimated $34K a year here, so Np4-12 12v 4.0ah Battery is a Fail.
- Flapen Score
- 48 / 100Ranks 3,828 of 7,287 Automotive niches · −1 vs the category median of 4948
- Market size
- $34K/yr7K searches / yr
- 90-day growth
- +90.6%search demand this quarter
- Competition
- 84%top-5 click share · 7 brands · 23 sellers
Flapen Score
Np4-12 12v 4.0ah Battery against its category
The dotted line is the Automotive average. Past it, Np4-12 12v 4.0ah Battery is stronger. Inside it, weaker.
Market
The Np4-12 12v 4.0ah Battery market on Amazon at a glance
Shoppers on Amazon United States searched for Np4-12 12v 4.0ah Battery 7K times last year and spent an estimated $34K. The top 5 brands take 95% of clicks. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 18.6% of those searches ended in a purchase.
Shoppers searched for this 7K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 18.6% of those searches ended in a purchase. Searches in the last 90 days moved +90.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $34K a year.
- Searches, last 12 months
- 7K
- Growth, 90 days vs prior 90
- +90.6%
- Conversion, latest week
- 18.6%
- Market size, estimated
- $34Ka year
- Top search term
- np4-12 12v 4.0ah battery5K searches a year
02 · Price
A sale here is worth $25.38.
Listings sell for $25.38 on average, from $17.53 to $42.68. Amazon reports units sold in ranges. This niche sold 1K to 2K a year. The average listing sells 0 to 100 of them. At $25.38 that is $0 to $3K a year per listing.
- Average price
- $25.38inside the $15 to $100 sweet spot
- Price range
- $17.53–$42.68
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 1K–2K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$3K
- Returns
- 2.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
73% of listings pay for placement with sponsored ads. 64% ship with Prime. On an average day, 6.2% of listings are out of stock. The average listing ranks #967 within Parts. It carries 2,105 reviews at 4.70 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 73%
- Prime listings
- 64%
- Out of stock, average day
- 6.2%
- Average rank
- #967in Parts
- Average rating
- 4.70 starsAmazon United States average 4.42 stars
- Average reviews
- 2,105per listing
- Listings tracked
- 11
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 116 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 116 months
Products
Top Np4-12 12v 4.0ah Battery products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
YUASA Battery NP4-12 General Purpose VRLA 12V 4AH Battery Lead Calcium Grids for Superior Life Absorbed Glass Mat Construction with No Free Acid Gas Recombination
- Price
- $25.51
- Rating
- 4.6/5
- Reviews
- 1,310
- Age
- 24y ago

EnerSys Genesis NP4-12 - 12 Volt/4 Amp Hour Sealed Lead Acid Battery with 0.187 Fast-on Connector
- Price
- $25.62
- Rating
- 4.7/5
- Reviews
- 1,939
- Age
- 19y ago

Casil CA1240 12V 4Ah SLA/AGM Sealed Lead-Acid Maintenance-Free Alarm Battery F1 Terminals
- Price
- $21.89
- Rating
- 4.6/5
- Reviews
- 6,374
- Age
- 15y ago

UPLUS LP12-4.0 12V 4AH Rechargeable SLA AGM Battery with F1/F2 terminals Replacement Batteries for Alarm Security Control Panel Garage Door Opener Ion Block Rockers UPS Ride On Truck etc.
- Price
- $18.89
- Rating
- 4.6/5
- Reviews
- 2,684
- Age
- 4y ago

EnerSys Genesis NP4-12 - 12 Volt/4 Amp Hour Sealed Lead Acid Battery with 0.187 Fast-on Connector (2 Pack)
- Price
- $42.68
- Rating
- 4.7/5
- Reviews
- 78
- Age
- 11y ago
Trending
estimated 90-day click momentum
Casil CA1250 12V 5Ah SLA AGM Alarm Battery Rechargeable Sealed Lead Acid Upgrade Replacement for CA1240 12V 4Ah ADT Security Systems UPS Backup Power
- Price
- $20.44
- Rating
- 4.7/5
- Reviews
- 214
- Age
- 5y ago

Casil CA1240 12V 4Ah SLA/AGM Sealed Lead-Acid Maintenance-Free Alarm Battery F1 Terminals
- Price
- $21.89
- Rating
- 4.6/5
- Reviews
- 6,374
- Age
- 15y ago

NP4-12 - 12 Volt/4 Amp Hour SLA Battery with 0.187 Fast-on Connector 3 Year Warranty
- Price
- $30.13
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 12y ago

NP4-12FR 12 Volt 5 AmpH SLA Replacement Battery with F1 Terminal
- Price
- $17.53
- Rating
- 4.6/5
- Reviews
- 22
- Age
- 13y ago

YUASA Battery NP4-12 General Purpose VRLA 12V 4AH Battery Lead Calcium Grids for Superior Life Absorbed Glass Mat Construction with No Free Acid Gas Recombination
- Price
- $25.51
- Rating
- 4.6/5
- Reviews
- 1,310
- Age
- 24y ago
Newest
by launch date
UPLUS LP12-4.0 12V 4AH Rechargeable SLA AGM Battery with F1/F2 terminals Replacement Batteries for Alarm Security Control Panel Garage Door Opener Ion Block Rockers UPS Ride On Truck etc.
- Price
- $18.89
- Rating
- 4.6/5
- Reviews
- 2,684
- Age
- 4y ago

Casil CA1250 12V 5Ah SLA AGM Alarm Battery Rechargeable Sealed Lead Acid Upgrade Replacement for CA1240 12V 4Ah ADT Security Systems UPS Backup Power
- Price
- $20.44
- Rating
- 4.7/5
- Reviews
- 214
- Age
- 5y ago

Mighty Max Battery ML5-12 - 12 Volt 5 AH F1 Terminal Rechargeable SLA AGM Battery
- Price
- $17.53
- Rating
- 4.6/5
- Reviews
- 10,459
- Age
- 8y ago

EnerSys Genesis NP4-12 - 12 Volt/4 Amp Hour Sealed Lead Acid Battery with 0.187 Fast-on Connector (2 Pack)
- Price
- $42.68
- Rating
- 4.7/5
- Reviews
- 78
- Age
- 11y ago

Yuasa NP4-12 Battery 12 Volt 4 Amp Sealed Lead Acid Battery (2)
- Price
- $41.26
- Rating
- 4.6/5
- Reviews
- 74
- Age
- 11y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 84% of clicks. A locked shelf that new listings rarely crack.
Brands
7 flat
Sellers
23
Est. top-5 brand share
95%
Top 20: 100%
Est. top-5 click share
84%
Top 20: 100%
Open market
2%
- Yuasa31%
- Enersys25%
- Casil22%
- UPLUS NEW TECHNOLOGY BATTERY11%
- SigmasTek5%
- Mighty Max Battery4%
- Open — no brand owns it (1 brand, 2%)
Reviews and returns
What reviews say buyers love and hate about Np4-12 12v 4.0ah Battery
We read the reviews and the return reasons for every product selling here.
“Short battery life”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
15 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Np4-12 12v 4.0ah Battery questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









