Additional Battery Packs extend total foot warming duration throughout extremely cold days.

With three (3) cells in each Battery Pack, the Power Plus e3 is Hotronic's most powerful-yet-compact Battery Pack!

WARNING: The Power Plus e3 Batteries can only be recharged using the Hotronic Power Plus e and m Series Recharger, with the white plugs.

LOST A BATTERY? We Highly Recommend:

• Slide Strap Brackets, Mounting Brackets, or Velcro® Attachment Straps to secure your batteries to your ski boots.
• OR Extension Cords for mounting your batteries at your waist or chest.

Temperature and Duration Settings Setting Approximate Average Temperature Duration Range °F °C 1 84 -95 29 - 35 14.5 - 17.75 hrs 2* 107 - 118 42 - 48 5.5 - 7 hrs 3 122 - 132 50 - 56 3.5 - 5.5 hrs 4 158 - 168 70 - 76 2 - 3.5 hrs Based on Battery Packs at average -22°C to -15°C (-9 to +4°F) ambient temperatures. * Setting 2 is the most common setting.

Note: If you are purchasing the the Hotronic Battery Pack Power Plus "e" series batteries (e4 / e3) to replace a Hotronic Battery Pack Power Plus "m" series batteries (m4/m3), we recommend replacing both batteries. The "e" series batteries are warmer than the "m" series batteries on the same settings.
See our >> Comparison of e Series to m Series Temperature & Duration Chart

Average Customer Review:

There are currently no customer product reviews for the product.

Be the first to write an online review and share your thoughts with others.