jbl partybox 320 battery
Worth a lookShows a thin review moat (23 avg reviews), but a small market ($57K/yr) keeps it on the watch list.
Review moat
Incredible23.29avg incumbent reviews — the moat a new listing must climb
Price range
Incredible$28.01–$94.68cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$46.90avg listing price — sweet spot $15–$100
Growth
Good+50.8%90-day search growth — must beat 0% to launch
Brand share
Good65%top-5 brand share — brands hold most of the demand
Returns
Good2.4%return rate — above 5% kills the launch gate
Competition
Okay56%top-5 click share — leaders hold, buyers still browse
Conversion
Okay2.6%search→purchase rate — share of searches ending in a sale
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$57K$57K/yr · 47K searches
According to Flapen's Amazon United States niche tracking, jbl partybox 320 battery is a $57K/yr Amazon United States market (47K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in May. Verdict: Worth a look — 53/100.
Data updated Jul 6, 2026 · scored weekly · How we score niches
jbl partybox 320 battery market data
- Units sold / yr
- 1K–2K
- avg 100–250/product
- Revenue / yr
- $59K–$70K
- units × avg price
- Conversion rate
- 2.6%
- Avg BSR
- #1,000
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 9.8%
- Avg brand age
- 30 months
- Avg seller age
- 214 days
Competition & brand share
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.Brands
18 rising
Sellers
29
Top-5 brand share
65%
Top 20: 100%
Top-5 click share
56%
Top 20: 95%
Open market
31%
- JBL29%
- E EGOWAY15%
- Bayhon9%
- CITYORK6%
- Burflo5%
- Palowextra4%
Demand & seasonality
Weekly Amazon search volume, last 57 weeks — +50.8% search growth over the last 90 days.Peak months: May · busiest ÷ quietest = 1.6×
Top jbl partybox 320 battery search terms
- jbl partybox 320 battery9K/yr
- jbl battery7K/yr
- jbl 320 battery8K/yr
- jbl partybox battery5K/yr
- jbl battery 4003K/yr
- jbl battery replacement7K/yr
- jbl partybox 520 battery5K/yr
- jbl xtreme 4 battery3K/yr
Top jbl partybox 320 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
JBL Battery 400 - an Easy-to-Replace Spare Battery Thats Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately)
JBL$94.684.8★107 rev
Egoway 10000mAh Replacement Battery for PartyBox Stage 320 & Xtreme 4 Speaker - 7.4V 74Wh Rechargeable Battery Long-Lasting Power Fast Charge 1 Pack (Speaker Not Included)
E EGOWAY$34.494.4★30 rev
Bayhon 10000mAh 7.4V 74Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Stage 320 and Xtreme 4 Portable Speaker Perfect Replacement for Battery 400-(1 Pack)
Bayhon$37.854.8★35 rev
JBL Battery 200 - an Easy-to-Replace Spare Battery Thats Compatible with The PartyBox Club 120 (Speaker Sold Separately)
JBL$70.904.6★143 rev
CITYORK 12000mAh Replacement Battery for PartyBox Stage 320 and Xtreme 4 Portable Speaker Easy-to-Replace Spare Battery 400 with USB-C Port (1 Pack)
CITYORK$39.734.7★44 rev
Newest
by launch date
Bayhon 5000mAh 7.2V 36Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Club 120 Perfect Replacement for Battery 200-(1 Pack)
Bayhon$28.0135 rev
FYIOGXG Battery for JBL PartyBox 520 PartyBox 720 PN:JBL FG6CELL21&700G 5000mAh / 108.0Wh
FYIOGXG$78.225 rev
Bayhon 10000mAh 7.4V 74Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Stage 320 and Xtreme 4 Portable Speaker Perfect Replacement for Battery 400-(1 Pack)
Bayhon$37.8535 rev
oliadeo 2Pack for JBL 320 Battery Pack Replacement: Partybox 320 Battery for JBL Battery 400 Party Box Stage 320 Xtreme 4 Lithium Batteries
oliadeo$56.124 rev
LIXIEKE LIXIEK Replacement Battery Compatible with JBL PartyBox 520 FG2CELL21700 Portable Bluetooth Speaker 5000mAh High Capacity Spare Battery with Type-C Port
LIXIEKE$93.611 rev
Trending
90-day click momentumBayhon 10000mAh 7.4V 74Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Stage 320 and Xtreme 4 Portable Speaker Perfect Replacement for Battery 400-(1 Pack)
Bayhon$37.854.8★
JIIKER Battery Replacment for JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker Compatible with JBL Battery 400
JIIKER$49.595.0★
LIXIEKE 9444mAh Replacement Battery Compatible with JBL PartyBox Stage 320 Xtreme 4 Battery 400 FG4CELL2170X 7.2V
LIXIEKE$32.260.0★
Palowextra 6000mAh Battery Replacement Compatible with JBL PartyBox Club 120 Portable Speaker 7.2V Replacement for Battery 200
Palowextra$34.004.3★
Bayhon 5000mAh 7.2V 36Wh Rechargeable Lithium-ion Spare Battery Compatible with PartyBox Club 120 Perfect Replacement for Battery 200-(1 Pack)
Bayhon$28.014.8★
What buyers say about jbl partybox 320 battery
What buyers praise and complain about, mined from review topics.What buyers love
“Good battery”
“Charges Well”
“The build quality is impressive”
“It is worth the price”
“Nice fitting battery”
“The seller described this item accurately”
“Easy to install”
“It gives us the freedom to take our PartyBox to friends houses, outdoor gatherings, and other outings without constantly worrying about finding an outlet — and thats a huge plus”
“you probably love the sound”
“I was also impressed with the build quality—it feels durable and well-made”
What buyers complain about
“Didnt fit my xtreme 4”
“i could not get this to take a charge”
“Trash”
“Not compatible”
“immediately shut off even when fully charged”
“was expecting a good battery or a battery that would work”
“The only reason Im giving it 4 stars instead of 5 is that its a bit on the heavier side”
Top return reasons
Common questions
- Is jbl partybox 320 battery profitable to sell on Amazon United States?
- The niche generates $57K/yr across 24 tracked products. 2 of 10 products launched in the last 360 days are still selling. 90-day search growth is +50.8%. Flapen's verdict: Worth a look (53/100).
- How competitive is the jbl partybox 320 battery niche?
- 18 brands and 29 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 65% of demand.
- What do buyers complain about in jbl partybox 320 battery?
- Top complaints mined from reviews: Size-Overall, Charging, Quality-Overall. The return rate is 2.4%.
- When does demand for jbl partybox 320 battery peak?
- Demand peaks in May; the busiest month runs 1.6× the quietest.
- What does it cost to enter the jbl partybox 320 battery niche?
- Listings span $28.01–$94.68; the average listing price is $46.90 (sweet spot $15–$100). The average incumbent carries 23 reviews — the moat a new listing must climb.