After strict testing, it can keep running for more than 3 hours with new 2x1.5V AA batteries(no load) Work with many power sources batteries and solar cells work perfectly, good for small toy car, ship, mini fan etc Easy to install and save, put them in a sealed bag when not in use to prevent damp rust Product features: Voltage: DC 3V Rated speed: 15000 RPM Color: silver + black Motor size: 38 x 20 x 15 mm/1.5" x 0.79" x 0.59" Shaft diameter: 2 mm/0.08" Shaft length: 10 mm/0.4" Mounting Hole Distance:15mm/0.59" Package included: 9 x Mini motors 9 x 2 x 1.5 AA battery holder case with 5.12in/13cm copper wires 9 x Mini boat rocker switches 9 x 10"/25cm copper wires 9 x Little motor mounting bracket holder 9 x 2 Solder lug SPST On/Off mini boat rocker switch 78 x Crown plastic gears Note: Small parts, keep them far away from children under 3 years to avoid choking Customer service: If you have any problem of our product, you can click"seller contact"button in your amazon account to email us, we will reply as soon as we can
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