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Battery Pack Power Plus S4

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Battery Pack Power Plus S4

• With four (4) cells in each Battery Pack, the Power Plus S4 is Hotronic’s most powerful, longest lasting Battery Pack!

Temperature & Duration Chart
Setting	Approximate Average Temperature		Duration Range
	°F	°C
1	84 - 98	29 - 37	16.5 - 21 h
2	107 - 121	42 - 49	7 - 10.5 h
3	122 - 138	50 - 59	5 - 7.5 h
4	158 - 173	70 - 78	2.5 - 4.5 h
Based on Battery Pack in ambient temperatures of -22° to -15°C (-9° to +4°F). Based on Heating Element in ambient temperatures of 20° to 26°C (68° to 79°F).

• More about Attaching Battery Pack (PDF)
• More about Compatibility (PDF)
• More about Using FootWarmer (PDF)

Foot Warmers

• Foot Warmers Info
  • Foot Warmer Sales Information (also in PDF)
  • Hotronic Keeps Feet Warm
  • Product Specifications (also in PDF)
  • Limited Warranty (also in PDF)
• Product
  • Foot Warmer S4
  • Foot Warmer S3
  • Parts and Accessories
• Testimonials
  • General
  • Bill Crouse - Everest
  • Ellen Miller - Everest, Lhotse, Manaslu
  • Emily Harrington - Everest
  • Bob Shay - Bicyclist
  • Bob Shay - 10 Years & 20,000 Miles Later
• How To
  • Operating Instructions (PDF)
  • Using Foot Warmer (PDF)
  • Attaching Battery Pack (PDF)
  • Installing Elements and Insoles (PDF)
  • How to Identify Production Year (also in PDF)
  • Production Year Identifiers (PDF)
• Charts
  • Temperature & Duration Charts
  • Compatibility Chart (also in PDF)
  • International Voltage Chart (also in PDF)
  • International Sizing Conversion Chart (also in PDF)

Image Gallery

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See Also

• Heat Socks XLP ONE
• Snapdry Boot & Glove Dryer