---
title: "Black and Decker 18v Battery Replacement — $317K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/black-and-decker-18v-battery-replacement"
last_updated: "2026-08-08T18:18:59.560Z"
locale: en
meta:
description: "Niche score 71/100 · $317K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 71/100 · $317K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Black and Decker 18v Battery Replacement — $317K/yr Amazon US Niche (2026) - Flapen"
---
# **black and decker 18v battery replacement**
**Worth a look**
Shows a sweet-spot price point ($40.10 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 52Growth 87Conversion 66Competition 69Returns 76Price range 95Avg price 95Brand share 76Review moat 57Quality gap 57
**Avg price**
**Incredible****$40.10**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$21.90–$59.81**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Great****+89.5%**
90-day search growth — must beat 0% to launch
**Brand share**
**Great****59%**
top-5 brand share — no brand owns this niche
**Returns**
**Great****1.9%**
return rate — above 5% kills the launch gate
**Competition**
**Good****43%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Good****6.0%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,218**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****$317K**
$317K/yr · 133K searches
According to Flapen's Amazon United States niche tracking, black and decker 18v battery replacement is a $317K/yr Amazon United States market (133K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 71/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **black and decker 18v battery replacement market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **$321K–$401K**
- units × avg price
- **Conversion rate**
- **6.0%**
- **Avg BSR**
- **#1,099**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **97%**
- **Out of stock**
- **9.8%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **173 days**
## **Competition & brand share**
The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**23 **▲rising
**Sellers**
**26**
**Top-5 brand share**
**59%**
Top 20: 97%
**Top-5 click share**
**43%**
Top 20: 88%
**Open market**
**35%**
- Munikind23% - OHYES BAT11% - Forrat10% - VANTTECH8% - Biswaye7% - Qwenoer7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +89.5% search growth over the last 90 days.
5K3KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 4.1×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/black-and-decker-18v-battery-replacement/trend)
## **Top black and decker 18v battery replacement search terms**
- **black and decker 18v battery replacement**19K/yr+146.8%5.7% conv. - **18v black and decker replacement battery**15K/yr+125.6%4.2% conv. - **black and decker 18v battery**26K/yr+36.7%5.0% conv. - **18 volt black and decker battery**12K/yr+108.2%5.5% conv. - **hpb18 18v battery replacement black and decker**9K/yr+61.5%8.0% conv. - **black and decker 18 volt battery**8K/yr+123.4%4.5% conv. - **black and decker firestorm battery**7K/yr+42.9%1.7% conv. - **black and decker hpb18 battery**5K/yr+71.8%5.2% conv. - **black decker 18v battery**6K/yr+84.9%3.8% conv. - **black and decker grasshog battery**3K/yr+205.4%2.5% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/black-and-decker-18v-battery-replacement/search-terms)
## **Top black and decker 18v battery replacement 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%4%$13K8%$25K12%$38K16%$51K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**2Pack 4.5Ah HPB18 Ni-Mh Replacement Battery for Black and Decker 18V Battery HPB18 HPB18-OPE Compatible with Black Decker Battery 18 Volt Tools A1718 FS18FL Firestorm Cordless Power Tool2Pack**Munikind**$33.27**4.4★4,356 rev](https://www.amazon.com/dp/B07Q4V3P4S) [2**VANTTECH 4.8Ah Ni-MH HPB18 Replacement for Black and Decker 18V Battery HPB18-OPE Compatible with Black + Decker Battery 18 Volt FS18FL A1718 Firestorm Cordless Power Tool**VANTTECH**$21.90**4.2★1,470 rev](https://www.amazon.com/dp/B0GHRNS6T6) [3**Biswaye 2-Pack 3.8Ah 18V NI-CD Battery Compatible with Black & Decker HPB18-OPE 18-Volt Slide Pack Battery HPB18 244760-00 A1718 FS18FL FSB18 and 18-Volt Firestorm Cordless Power Tools**Biswaye**$34.72**4.5★3,720 rev](https://www.amazon.com/dp/B0746HR2T8) [4**18V 6.0Ah Replacement for Black and Decker 18V Battery 244760-00 HPB18 18v battery replacement black and decker A1718 A18 A18E A18NH HPB18-OPE FS180BX FS18BX FS18FL FSB18 Firestorm 18V Battery**Qwenoer**$32.67**4.7★264 rev](https://www.amazon.com/dp/B0D1XSWQ5S) [5![2-Pack [Upgraded to 3600mAh] Replacement for Black and Decker 18V Battery](https://m.media-amazon.com/images/I/41fAfYrhC+L.jpg)**2-Pack \[Upgraded to 3600mAh\] Replacement for Black and Decker 18V Battery**OHYES BAT**$35.53**4.4★2,063 rev](https://www.amazon.com/dp/B0GLG25SQH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2Pack 6500mAh Replacement for Black and Decker 18V Battery Conpatible with Black and Decker 18 Volt Lithium Battery HPB18 HPB18-OPE A1718 A18 A18NH FSB18 FS18FL 244760-00 Cordless Tools**BATTOOL**$45.51**317 rev2mo ago](https://www.amazon.com/dp/B0H11F7MN1) [**2 Pack 8000mAh hpb18 battery Replacement for black and decker 18v battery HPB18 HPB18-OPE 244760-00 A1718 FS18FL FSB18 FS18HV FS18ID Compatible with Black&Decker 18V Post Style / Rear Mount tools**Securelyte**$50.44**14 rev5mo ago](https://www.amazon.com/dp/B0GMRFV58C) [![2-Pack [Upgraded to 3600mAh] Replacement for Black and Decker 18V Battery](https://m.media-amazon.com/images/I/41fAfYrhC+L.jpg)**2-Pack \[Upgraded to 3600mAh\] Replacement for Black and Decker 18V Battery**OHYES BAT**$35.53**2,063 rev5mo ago](https://www.amazon.com/dp/B0GLG25SQH) [**2 Pack 4.5Ah Ni-Mh Replacement for Black and Decker 18V Battery and Charger**OHYES BAT**$48.78**90 rev5mo ago](https://www.amazon.com/dp/B0GLGC4X4B) [**VANTTECH 4.8Ah Ni-MH HPB18 Replacement for Black and Decker 18V Battery HPB18-OPE Compatible with Black + Decker Battery 18 Volt FS18FL A1718 Firestorm Cordless Power Tool**VANTTECH**$21.90**1,470 rev6mo ago](https://www.amazon.com/dp/B0GHRNS6T6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**2Pack 6500mAh Replacement for Black and Decker 18V Battery Conpatible with Black and Decker 18 Volt Lithium Battery HPB18 HPB18-OPE A1718 A18 A18NH FSB18 FS18FL 244760-00 Cordless Tools**BATTOOL**$45.51**4.3★**▲ 109%**](https://www.amazon.com/dp/B0H11F7MN1) [**2 Pack 8000mAh hpb18 battery Replacement for black and decker 18v battery HPB18 HPB18-OPE 244760-00 A1718 FS18FL FSB18 FS18HV FS18ID Compatible with Black&Decker 18V Post Style / Rear Mount tools**Securelyte**$50.44**4.3★**▲ 108%**](https://www.amazon.com/dp/B0GMRFV58C) [**2Pack 4500mAh HPB18 Replacement for Black and Decker 18V Battery 4.5Ah**Munikind**$52.41**4.4★**▲ 108%**](https://www.amazon.com/dp/B0GTYSJ3T4) [**2Pack 4.5Ah HPB18 Replacement for Black and Decker 18V Battery HPB18**Munikind**$34.36**4.4★**▲ 103%**](https://www.amazon.com/dp/B0GL1XXB4T) [**VANTTECH 4.8Ah Ni-MH HPB18 Replacement for Black and Decker 18V Battery HPB18-OPE Compatible with Black + Decker Battery 18 Volt FS18FL A1718 Firestorm Cordless Power Tool**VANTTECH**$21.90**4.2★**▲ 58%**](https://www.amazon.com/dp/B0GHRNS6T6)
**~~View all trending →~~**
## **What buyers say about black and decker 18v battery replacement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**32%
*“Battery works great”*
**Charging**17%
*“Charges in no time”*
**Size-Overall**10%
*“Fits good”*
**Quality-Overall**9%
*“Good quality, last about 5 years”*
**Advertised Vs Actual Product**9%
*“Just as advertised”*
**Value For Money**5%
*“For the price point”*
**Durability**2%
*“Impressed with how long it is lasting”*
**Strength**1%
*“Very strong current feed to the B”*
**Product Condition**1%
*“almost like new again”*
**Ease Of Use**1%
*“Ease of use”*
### **What buyers complain about **
**Charging**35%
*“Takes hours to charge”*
**Battery Life**23%
*“battery are no good at all”*
**Durability**7%
*“The first one failed two weeks ago”*
**Size-Overall**4%
*“Did not fit”*
**Quality-Overall**4%
*“Absolute garbage product”*
**Battery Inclusion**2%
*“The tools I purchased used did not have batteries”*
**Compatibility-Overall**2%
*“Don't buy it's nor compatible”*
**Weight Heavy**1%
*“Plus, these are even heavier”*
**Heating**1%
*“the batteries were extremely hot which cant be good for longevity”*
**Value For Money**1%
*“What a waste of money”*
### **Top return reasons **
**Battery Inclusion**48%
**Size-Overall**15%
**Charging**12%
**Battery Life**7%
**Compatibility-Overall**5%
**Functionality-Overall**3%
**Defective Material/Parts**3%
**Value For Money**2%
**Advertised Vs Actual Product**2%
**Durability**1%
## **Common questions**
- **Is black and decker 18v battery replacement profitable to sell on Amazon United States?**
- The niche generates $317K/yr across 30 tracked products. 4 of 7 products launched in the last 360 days are still selling. 90-day search growth is +89.5%. Flapen's verdict: Worth a look (71/100).
- **How competitive is the black and decker 18v battery replacement niche?**
- 23 brands and 26 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 59% of demand.
- **What do buyers complain about in black and decker 18v battery replacement?**
- Top complaints mined from reviews: Charging, Battery Life, Durability. The return rate is 1.9%.
- **When does demand for black and decker 18v battery replacement peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 4.1× the quietest.
- **What does it cost to enter the black and decker 18v battery replacement niche?**
- Listings span $21.90–$59.81; the average listing price is $40.10 (sweet spot $15–$100). The average incumbent carries 1,218 reviews — the moat a new listing must climb.
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