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18650 power bank
Skip itA small market ($86K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$35.30avg listing price — sweet spot $15–$100
Review moat
Great361.63avg incumbent reviews — the moat a new listing must climb
Competition
Great38%top-5 click share — an open shelf
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Price range
Good$7.71–$165.34cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay3.2%search→purchase rate — share of searches ending in a sale
Returns
Okay4.0%return rate — above 5% kills the launch gate
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Growth
Bad-0.9%90-day search growth — must beat 0% to launch
Market size
Bad$86K$86K/yr · 76K searches