40
21700 battery
Skip itA small market ($26K/yr) — this niche doesn't clear our bar today.
Review moat
Incredible41avg incumbent reviews — the moat a new listing must climb
Quality gap
Incredible3.9★avg incumbent rating — lower means beatable quality
Returns
Incredible1.0%return rate — above 5% kills the launch gate
Avg price
Good£14.80avg listing price — sweet spot $15–$100
Price range
Okay£5.23–£20.40cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay2.8%search→purchase rate — share of searches ending in a sale
Competition
Bad78%top-5 click share — a locked-up shelf
Growth
Bad-13.9%90-day search growth — must beat 0% to launch
Brand share
Bad96%top-5 brand share — brand-locked demand
Market size
Bad£26K£26K/yr · 65K searches