For use with Hotronic’s pre-wired BD Anatomic Insoles or with Heating Elements as installed in Hotronic's One Size Fits All Heat Ready Insoles, Semi Custom Heat Ready Insoles, or on custom insoles, orthotics, or insoles of one’s own choice.

HOTRONIC’S BATTERY PACK S4

• Offer three (3) base level settings for comfort and warmth maintenance.
• Provide a fourth (4th) “timed” setting for an extra blast of heat.
• Powered by high capacity, cold temperature operation, NiMH AA cells.
• NiMH cells do NOT have a “memory effect” and do not require fully discharging before fully recharging.

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).

HOTRONIC’S RECHARGER POWER PLUS S/e/m SERIES

• Compatible with all S, e, and m Series Battery Packs.
• Advanced charging technology senses when one or more batteries inside each Pack are fully charged and protects them from overcharging damage by switching to trickle current recharging.
• Global input range of 100V to 240V.
• Meets full standards and approval from US and Canadian ETL as well as European CE.
• Recharger LEDs indicate recharging mode and charge status.