The new S4+ Footwarmers are Hotronic's most powerful, longest lasting Battery Packs... Ever!
With enhanced reliability and longevity, the new S Series batteries maintain 55% of a full charge and 95% of their initial capacity after four years of non use! Plus, an increase in capacity offers up to a combined 30% in higher average temperatures over "e" and "m" batteries series on the same settings. Longer durations on a single full charge, all when needed most, in the cold!
Easily installs in all types of footwear
Transfers simply from one pair of footwear to another
Use while skiing, snowboarding, bicycling, horseback riding, fishing, and during other general cold-temperature activities
HOTRONIC'S BATTERY PACK S4+
Powered by high capacity, cold temperature operation, NiMH cells
Four (4) temperature-duration settings
Settings adjusted by easy to use, push-button controls
Easy to read Battery Pack LEDs indicate setting selected and power on / off
Battery Packs easily attach to secure area of footwear
Battery Packs S4+ contain four (4) cells for powerful-yet compact design
NiMH cells do NOT have “memory effect” and do NOT require fully discharging before fully recharging
Temperature and Duration Settings
Approximate Average Temperature
84 - 98
29 - 37
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
Based on battery packs in ambient temperatures -22°c to -15°c (-9 to +4°f). Based on heating element in ambient temperatures 20°c to 26°c (68° to 79°f).
** Setting 2 is the most common setting.
HOTRONIC'S RECHARGER FOR POWER PLUS S, e, and m SERIES
Advanced global charging technology with overcharge protection and input range of 100V-240V
Includes North American and European plug adapters
Recharges in 3 hours or less
Recharger LEDs indicate recharging mode and battery charge status
Compatible with S, e, and m Series Battery Packs
HOTRONIC'S HEATING ELEMENTS
Large oval Heating Elements provide effective anatomical coverage of toes
I have purchased my third set of Hotronic footbed warmers for hiking and use when operating a bus. With temperatures holding below zero at night and early morning, keeping my feet from being frozen can be a challenge. The Hotronics batteries hold a charge nicely and last throughout the day. Footbed heaters are worth the cost.