Hotronic S4 Battery Battery Pack
Did you loose a battery? Do you want extra longevity for your heat by having back up batteries? Did a battery get old and won't hold a charge? Then ordering a Hotronic S4 Power Plus Battery Pack replacement or spare battery for your ski boot heaters will help. Keep in mind the Power Plus S4 batteries can only be recharged using the Hotronic Power Plus m4/m3, e4/e3, and S4/S3 battery charger with the white plugs.
One S4 NiMH Battery Pack
NiMH cells DO NOT have memory effect and DO NOT require fully discharging before fully recharging.
TEMPERATURE and DURATION
Setting 1- 84 - 98 F, 29 - 37 C, lasts 16.5 - 21.0 hrs
Setting 2- 107 - 121 F, 42 - 49 C, lasts 7 - 10.5 hrs
Setting 3- 122 - 138 F, 50 - 59 C, lasts 5 - 7.5 hrs
Setting 4- 158 - 173 F, 70 - 78 C, lasts 2.5 - 4.5 hrs