The Hotronic FootWarmer S4 Power Set includes 2 battery packs and 1 recharger. Keep this as a back-up spare for your Hotronic ski boot heaters, just in case you lose a battery or plan on having non stop fun in the snow. This set up includes 2 of the super powerful, long lasting S4 battery packs. Each has 4 heat settings for maintaining comfort and warmth in your foot. Use these battery packs with Hotronic Heat Elements for all day comfort on the slopes. Recharging your batteries is easy with the power indicator light and overcharging protection features. For complete set up instructions, read our guide.
- 2 S4 battery packs (manufactured in Spring of 2019) and 1 re-charger
- Recharge both batteries simultaneously
- Keep your feet warm for up to 21 hours
- 3 settings for heat maintenance, 1 heat surge setting
- Charger is compatible with all S, e, m series batteries
- North American and European plug adapters included