60
10 year smoke detector battery
Worth a lookShows a $4.0M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible$4.0M$4.0M/yr · 860K searches
Avg price
Great$56.73avg listing price — sweet spot $15–$100
Conversion
Great8.1%search→purchase rate — share of searches ending in a sale
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.3%return rate — above 5% kills the launch gate
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Review moat
Okay1,695.1avg incumbent reviews — the moat a new listing must climb
Price range
Okay$16.54–$195.22cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-2.7%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals High Price