This is a Hot-Shot #2 Long Glo-Starter with Battery Charger. This is used to heat glow plugs while starting glow-powered engines. FEATURES: Proven Twist and Lock Connector ensures a secure, solid connection that won't come off, providing safer, faster starts for your model. Pre-Installed Genuine Sanyo Sub-C battery cell Included AC battery charger with hex-shaped charge end recharges the Glow Starter in 10 hours. A red LED glows as unit is charging. Removable Red rubber socket cap prevents shorting and any dirt or dust debris from entering into the the shaft. One Year Limited Warranty USA and Canada only INCLUDES: One Hot Shot #2 Long Glo-Starter w/Red rubber protective cap One Hot Shot #2 Glo-Starter Battery Charger One Instruction/Header Card SPECS: Sanyo Sub-C NiCd Battery: 1500mAh, 1.2V AC Charger- Input: 110-120V AC 60Hz (US Standard) Output: 1.25V DC 150mA Hot Shot- Overall Length: 5-7/8" (149mm) Shaft Length: 3-3/4" (95mm) Diameter: 15/16" (24mm) COMMENTS: How to use: To lock onto your engine's glow plug, place the end of the Hot Shot 2 over the plug and push down. Twist the Hot Shot 2 clockwise and it locks into place. Charging: Before using, initial charge should be 12 to 14 hours Subsequent charging time is approximately 10 hours For Hot Shot #2 Standard version use HCAP2520 For Super Hot Shot #2 version use HCAP2528 **********The charger that was originally packaged with this Glo-Starter had a 150mAh charge rate which requires a long time to charge the large mAh battery. The customer charges the battery initially for 12 hours; 24 hours for more frequent fliers.