Battery Post Shims
FailPrices span $3.54–$9.95, mostly outside the sweet spot, so Battery Post Shims is a Fail.
- Flapen Score
- 48 / 100Ranks 3,828 of 7,287 Automotive niches · −1 vs the category median of 4948
- Market size
- $91K/yr119K searches / yr
- 90-day growth
- -14.9%search demand this quarter
- Competition
- 62%top-5 click share · 19 brands · 25 sellers
Flapen Score
Battery Post Shims against its category
The dotted line is the Automotive average. Past it, Battery Post Shims is stronger. Inside it, weaker.
Market
The Battery Post Shims market on Amazon at a glance
Shoppers on Amazon United States searched for Battery Post Shims 119K times last year and spent an estimated $91K. The top 5 brands take 63% of clicks. Demand peaks in Jan–Feb. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 11.9% of those searches ended in a purchase.
Shoppers searched for this 119K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 11.9% of those searches ended in a purchase. Searches in the last 90 days moved -14.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $91K a year.
- Searches, last 12 months
- 119K
- Growth, 90 days vs prior 90
- -14.9%
- Conversion, latest week
- 11.9%
- Market size, estimated
- $91Ka year
- Peak month
- February1.6× the quietest month
- Top search term
- battery terminal shim39K searches a year
02 · Price
A sale here is worth $6.41.
Listings sell for $6.41 on average, from $3.54 to $9.95. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 500 to 750 of them. At $6.41 that is $3K to $5K a year per listing.
- Average price
- $6.41under the $15 to $100 sweet spot
- Price range
- $3.54–$9.95
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $3K–$5K
- Returns
- 3.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
48% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #384 within Batteries & Accessories. It carries 219 reviews at 3.93 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 48%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #384in Batteries & Accessories
- Average rating
- 3.93 starsAmazon United States average 4.42 stars
- Average reviews
- 219per listing
- Listings tracked
- 21
04 · Newcomers
0 of last year's 4 launches cleared the first-year sales bar.
4 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 35 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 4
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 35 months
Products
Top Battery Post Shims 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
eMagTech 4pcs Car Battery Terminals Shims Clamps Posts Spacer Shims for in-car Audio Video Connectors Silver
- Price
- $9.03
- Rating
- 4.5/5
- Reviews
- 57
- Age
- 1y ago

BESULEN 10PCS Car Battery Post Terminal Shims Auto Lead Terminal Shim Caps with 12 Piece Washers for Top Post Battery Post Ends Repair Universal for Vehicles SUV Truck RV Boat
- Price
- $7.94
- Rating
- 4.4/5
- Reviews
- 305
- Age
- 2y ago

smilfuy 1 Pair Battery Post Shims Pure Lead Anode Cathode Sleeves
- Price
- $4.83
- Rating
- 3.6/5
- Reviews
- 324
- Age
- 2y ago

QWORK Battery Post Shims Cap 4 Pack Terminal Cable End for Positive or Negative Post
- Price
- $7.29
- Rating
- 4.1/5
- Reviews
- 188
- Age
- 4y ago

Universal 10PCS Car Battery Post Terminal Shims Kit with Washers - Silver Color Terminal End Repair Accessories
- Price
- $7.69
- Rating
- 4.0/5
- Reviews
- 60
- Age
- 1y ago
Trending
estimated 90-day click momentum
4PCS Car Battery Terminal Shim Kit with 4PCS Washers Positive & Negative Car Battery Post Shims for Worn Batteries Post Repair Lead Cars Batteries Shim for Cars SUVs
- Price
- $5.36
- Rating
- 4.4/5
- Reviews
- 11
- Age
- 5mo ago

Alieemo 10PCS Car Battery Terminal Shims with 12 Washers Battery Post Repair Kit Universal Anti-Corrosion Lead Terminal Shim Caps for Loose Ends on Auto Truck SUV RV Boat (Red & Green/Shims)
- Price
- $5.31
- Rating
- 4.8/5
- Reviews
- 4
- Age
- 1y ago

BESULEN 10PCS Car Battery Post Terminal Shims Auto Lead Terminal Shim Caps with 12 Piece Washers for Top Post Battery Post Ends Repair Universal for Vehicles SUV Truck RV Boat
- Price
- $8.16
- Rating
- 4.4/5
- Reviews
- 305
- Age
- 1y ago

TNAIYH Car Battery Post Terminal Shims with Washers 4PCS Positive & Negative Auto Lead Terminal Converter Shim Caps Vehicle Pure Anode Cathode Sleeves Universal for SUV RV Truck
- Price
- $5.85
- Rating
- 3.3/5
- Reviews
- 12
- Age
- 8mo ago

eMagTech 4pcs Car Battery Terminals Shims Clamps Posts Spacer Shims for in-car Audio Video Connectors Silver
- Price
- $9.03
- Rating
- 4.5/5
- Reviews
- 57
- Age
- 1y ago
Newest
by launch date
4PCS Car Battery Terminal Shim Kit with 4PCS Washers Positive & Negative Car Battery Post Shims for Worn Batteries Post Repair Lead Cars Batteries Shim for Cars SUVs
- Price
- $5.36
- Rating
- 4.4/5
- Reviews
- 11
- Age
- 5mo ago

TNAIYH Car Battery Post Terminal Shims with Washers 4PCS Positive & Negative Auto Lead Terminal Converter Shim Caps Vehicle Pure Anode Cathode Sleeves Universal for SUV RV Truck
- Price
- $5.85
- Rating
- 3.3/5
- Reviews
- 12
- Age
- 8mo ago

2 Sets Battery Post Shim Set With 14 Washers - Lead Terminal Shim Caps for Car Battery Repair - Fits Top Post Battery Ends
- Price
- $6.08
- Rating
- 3.4/5
- Reviews
- 36
- Age
- 8mo ago

2 Pcs Battery Post Shims Car Battery Terminal Shims Extender Adapter Sleeve Automotive Pure Lead Anode Cathode Cap Spacer for Positive Negative Connection
- Price
- $4.15
- Rating
- 3.6/5
- Reviews
- 30
- Age
- 9mo ago

GAOLAOSY 1 Pair Car Battery Post Shims Pure Lead Auto Positive & Negative Post Converter Shim Caps Anode Cathode Adaptor Sleeve Universal Car Battery Terminal Connection Part Accessories (2PCS)
- Price
- $3.94
- Rating
- 3.2/5
- Reviews
- 16
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 62% of clicks. Leaders hold, but buyers still shop past them.
Brands
19 flat
Sellers
25
Est. top-5 brand share
63%
Top 20: 100%
Est. top-5 click share
62%
Top 20: 99%
Open market
30%
- BESULEN16%
- eMagTech16%
- smilfuy15%
- QWORK10%
- AQEENURA7%
- Ampper7%
Demand
Battery Post Shims search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb · busiest ÷ quietest = 1.6×
Search terms
Top Battery Post Shims search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- battery terminal shim39K/yr
- battery post shims29K/yr
- battery shim11K/yr
- battery post shim8K/yr
- battery terminal shims7K/yr
- car battery terminal shim5K/yr
- car battery post shims5K/yr
- battery shims5K/yr
- battery terminal sleeve4K/yr
- car battery shim5K/yr
Reviews and returns
What reviews say buyers love and hate about Battery Post Shims
We read the reviews and the return reasons for every product selling here.
“Does not fit”
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.
18 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 Battery Post Shims 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









