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

Additional features:

• 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).