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The Hotronic S4 Power Set includes two battery packs and a charger unit for their latest S4 systems. Keep a spare set of batteries charged and ready to go for ultra cold conditions, and don't get left "out in the cold."
Includes – 2 Battery Packs and 1 Recharger
Includes North American and European Plug Adapters
Compatible with Hotronics S4 Custom and Universal FootWarmers