Hotronic FootWarmer Power Plus S4 Custom Kit

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Regular Price $254.00 Sale Price $186.75
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Hotronic FootWarmer Power Plus S4

The Hotronic FootWarmer Power Plus S4 custom system is Hotronic's highest performing foot warmer, with 4 cells per battery pack for more warmth and duration than ever before. If you want to make the most out of every bluebird day no matter how low the temps are sitting, the Hotronic FootWarmer S4 provides the warmth your feet need. Don't let cold feet send you inside before you're ready to quit! Plus, after ski season ends, easily swap the heated insoles from boots to bike shoes to waders, and enjoy warm feet for any cold weather activity! We also carry the entire line of Hotronic Products!


  • 2 Power Plus S4 Battery Packs with Integrated Heat Regulator
  • 1 Recharger (global input 100-240VAC, 50/60Hz) with North American and European Plug Adapters
  • 1 Pair of Heating Elements with Self-Adhesive Fabric Covers and Strips, for installation on insoles of your choice or any of the Hotronic Heat Ready Insoles
  • Operating Instructions & Limited Warranty Card

Hotronic S4 Battery Pack:

  • Powered by high capacity, cold temperature operation, NiMH AA cells
  • Four (4) temperature-duration settings for ultimate comfort Settings adjusted by easy-to-use push-button controls
  • Battery Packs easily attach to secure area of footwear
  • NiMH cells do NOT have a memory effectand do NOT require fully discharging before fully recharging
Temperature & Duration Chart
Approx. Avg. Temp.
Duration Range
84 - 98
29 - 35
16.5 - 21 hrs
107 - 121
42 - 49
7 - 10.5 hrs
122 - 138
50 - 59
5 - 7.5 hrs
158 - 173
70 - 78
2.5 - 4.5 hrs

Hotronic Recharger Power Plus S/e/m Series:

  • Advanced global charging technology with overcharge protection and input range of 100V-240V
  • Compatible with all S, E, and M Series Battery Packs
  • Includes North American and European plug adapters
  • Recharger LEDs indicate recharging mode and battery charge status
(Hotronic Semi Custom Heat Ready Insoles or Hotronic One Size Fits All Heat Ready Insoles)

Hotronic Heating Elements:

  • Large oval Heating Elements provide effective anatomical coverage of toes
  • Heating Elements install easily on custom or other personal insoles with the included Self-Adhesive Fabric Covers and Strips
Hotronic FootWarmer Power Plus S4 Custom Kit
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