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It is for use only by factory-certified technicians performing authorized warranty service on the Mag-Lite® and/or other Mag-Lite® System™ components.

1 2 Charging Cradle 3 Battery (NiCad) 4 Mounting Brackets (x2) 5 120 Volt Converter (US) 6 12 Volt Adapter (Automobile) 7 230 Volt Converter (Euro) 8 12 Volt Straight Wire (Automobile).

https://en.wikipedia.org/wiki/Rechargeable_battery

https://en.wikipedia.org/wiki/Rechargeable_alkaline_battery

https://en.wikipedia.org/wiki/Rechargeable_calling_card

Rechargeable Flashlights – Walmart.com