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iphone 8 plus battery case

Skip it32/100

a concentrated shelf (top 5 take 96% of clicks) — iphone 8 plus battery case doesn't clear our bar today.

Market/yr

$26K

Growth (1y)

+63.2%

Products

6

Brands

6

was 6 a year ago

Sellers

7

Price range

$10.00–$36.04

Returns

4.1%

Rating

4.0★

32/100

Skip it

Scored 32/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
1
×0.30
Growth
54
×0.30
Competition
0
×0.20
Quality gap
84
×0.10
Returns
68
×0.10

Demand

Weekly Amazon search volume, last 101 weeks — +63.2% year over year.
559279.5Spike '24Holiday '24Spike '25Prime Day '25Holiday '25Jul '24Nov '24Mar '25Jul '25Oct '25Feb '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Jul, Aug, Dec · busiest ÷ quietest = 2.0×

Competition

29%Trswyop
  • Trswyop29%
  • YINGYKJ28%
  • QTshine23%
  • Loytal12%
  • SlaBao4%
  • DUEDUE4%
  • Other0%

The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack. 6 brands and 7 sellers compete here.

Brands

6 flat

was 6 a year ago

Sellers

7

Top 5 brand share

96%

Product shelf

All 6 tracked products in this niche.

Reviews

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

What buyers love

Size-Overall70%

“Good fit”

Battery Life20%

“Long lasting battery”

Color10%

“Love the color”

What buyers complain about

Durability42%

“lasted 5 years before the connector to the iPhone broke”

Quality-Overall25%

“The quality seems not good”

Charging17%

“then simply stopped functioning at all - won't take a charge”

Battery Life17%

“doesn't function as a battery”

Top return reasons

  • Size-Overall29%
  • Charging28%
  • Compatibility-Overall15%
  • Magnetic Strength/Adsorption5%
  • Value For Money4%
  • Functionality-Overall3%
  • Advertised Vs Actual Product3%
  • Defective Material/Parts2%
  • Material Quality1%
  • Socket/Port/Plug1%

Data scraped July 6, 2026 · Marketplace baseline: 4.4★ avg rating · $22.79 median price · 2.2% median returns across 14,944 tracked niches.