Hotronic Guide 23/24
Everything you need to know about the new systems from Hotronic.
Use this guide to access information regarding discontinued Hotronic prodcuts such as the S4+ as well.
New for 23/24 season, Hotronic has introduced the XLP C series! This series sets the new standard in foot heating systems and replaces the S-series system from prior seasons. The special Lithium-Ion technology, combined with state-of-the-art electronics, makes these batteries compact and light. They can be controlled directly or via Bluetooth through the Hotronic app.
Before Using Your New Heated Socks
Stop! Before you use your XLP batteries for the first time, they need to be conditioned for 48 hours prior to use. This impacts the longevity and warranty of your batteries.
All you have to do is leave them on the charger for a full 48 hours.
Comfort Socks:
74% nylon, 20% lycra/spandex, 6% merino natural wool
Thin Socks:
80% nylon, 20% lycra/spandex
PFI or Performance Fit Index, relates to the amount of compression in a sock. PFI 50 designates light compression, while PFI 90 is classified as strong and is therefore only found in Hotronic's performance series.
Designed for use worldwide, simply connect any XLP P battery pack to the global recharger in seconds. As safe, stable recharging continues, the battery pack's LED lights indicate when the charge level reaches 20%, 50%, 75%, and a full charge of 100%.
*Global input range 100V to 240V
*Includes North American and central European plug adapters
*Recharge batteries promptly after each use
*Battery packs contain lithium-ion batteries that can be recharged at any level of remaining charge
Summer Storage:
*For long term storage, XLP battery packs should be charged to 50%. (During the recharging process, remove battery packs from charging cradles promptly after 2nd LED lights up, or check the fuel gauge on the app for BT batteries.
*Store batteries with all LEDs off, disconnected from the recharger and heat socks, with battery pack contact protection covers attached.
Before Using Your New Boot Heater System
Stop! Before you use your XLP batteries for the first time, they need to be conditioned for 48 hours prior to use. This impacts the longevity and warranty of your batteries.
All you have to do is leave them on the charger for a full 48 hours.
Attachment System Options:
There's lots of ways you can attach your XLP-C batteries!
Ultimately, each attachment style works best depending on the intended use for you and your needs.
Please see the "How To" section of this guide for a video on installing the strap brackets as these tend to cause the most confusion.
Advice for attaching these different systems:
2024 Custom XLP-C Series Install Video
XLP C Battery Attachment
Have an older S series battery and need to install a slide strap bracket?
Pairing the XLP 2C BT
Download the FREE Hotronic app to pair!
1. Switch the battery packs on using the power button.
2. Press and hold the power button until the battery pack increases to setting two, then appears to turn off. All LEDs will start flashing in sequence (approx 12 seconds).
3. Release the power button once the LEDs start lighting up in a sequence from 1 to 4.
4. The Hotronic app will search for your battery in pairing mode. Connect each battery individually.
5. Once pairing is sucessful, a green LED on the battery pack will light up.
Hotronic DOES NOT provide "fireplace" warmth. All Hotronic products provide imperceptible heat to maintain comfort and warmth.
*Expect to learn what settings work best for you over time
*Expect proper fitting footwear to improve comfort and warmth
*Expect dry footwear and and socks to improve comfort and warmth
We're sorry to hear about the issue with your batteries! To file a warranty claim, please see the info regarding the XLP system or S4+ depending on your system via the drop-down menus lower in this guide.
Please, no phone calls. We are a small team and will help you to get you warranty claim sorted. The time it takes to fullfill a warranty request will depend on inventory availability. We require defective items back before sending out new inventory. We understand the urgency for these systems since many use these sytems for ski trips or on-mountain work. However, it may not be possible to turnaround as quickly as what may be requested.
No. As long as you are using the re-charging cable that came with your kit, you can use any wall charger with a compatible USB slot and will not void the warranty.
Please see our previous guide:
https://www.utahskigear.com/blogs/news/hotronics-set-install-use-heated-insoles
No. All boot installation systems for the 23/24 season are completely new and not cross compatible with Hotronic's older systems.
That means element cords, attachments, and rechargers are all not compatible between the 23/24 models and previous years.
Luckily, we still have parts for the S-series available on our website while supplies last.
ALL socks are compatible with ALL XLP "P" and "ONE" batteries but the chargers are different between the newer XLP-P series and the older XLP-ONE series.
Please see the "Sock Info" section of this guide to learn more.
A durable, breathable, synthetic material that helps wick away moisture and gives added warmth. There is adhesive on one side designed to cover your custom insole and heating elements when installing a custom boot heater.
Any Hotronic order containing XLP batteries must ship via UPS Ground because XLP is a Lithium-Ion battery which has restrictions by shipping carriers.
Lithium batteries are regulated as a hazardous material under the U.S. Department of Transportation's (DOT) Hazardous Materials Regulations (HMR; 49 C.F.R., Parts 171-180). The HMR apply to any material DOT determines can pose an unreasonable risk to health, safety, and property when transported in commerce. Lithium batteries must conform to all applicable HMR requirements.
Any Hotronic order containing lithium-ion batteries cannot be shipped overseas.
Hotronic orders NOT containing XLP batteries may ship via other methods prompted at checkout.
Please see our shipping policy for a full breakdown on all things shipping.
Sometimes you may have a hard time distinguishing which battery series your Hotronic batteries are. Knowing which series your batteries are is important for determining which charger you can use. If you do not know which Hotronic battery series you have, the following descriptions may help.
Power Plus S Series/E Series
All batteries manufactured after 2006 are compatible with the same white charger. The E and S series have white ‘On’ and ‘Off’ buttons on the top. The model will be printed on the front of the battery, as with all of the models.
No! You should not be able to feel the heater under your feet if it is properly installed. The Heat Ready Insole has a designated slot for the heating element so the insole can remain completely flat. Even if you are using your Hotronics with custom insoles, you should not be able to feel the heating pad. It is extremely thin and should only create a slight bump- about 1mm high. The wires for the heating element go under the insole so they should not noticeable.
We recommend placing your Hotronic battery on the outside of your boot, behind the buckles so that it does not get in the way. Using a slide strap bracket and placing your snow pants over the Hotronic battery will protect it and reduce the chance of it becoming an obstacle.
On the lowest setting, these batteries are designed to last for 24 hours for the XLP 2C BT and 12 hours for the XLP 1C BT.
Since this is a new battery by Hotronic, we don't have trouble shooting tips for these batteries quite yet. Don't worry! As the season progresses, we will add this information here! In the meantime, we'd love your feedback on tips and tricks that have helped you so we can help others too!
Send us an email: support@utahskigear.com
S4+ batteries are Nickel Metal Hydride. Always condition your batteries for best use. We recommend leaving them on the charger for a full 72 hours before first use to condition them. However, do not permanently store the batteries on the charger if it is not necessary. Always store charged batteries in a cool location.
We also recommend doing another conditioning charge if you haven't used your Hotronic S4+ batteries for an extended period of time, like over the summer for instance. Generally, within 30 to 60 days, batteries will become completely drained. When using them, you will need to first recharge them. Performing the conditioning charge again will help with the battery's overall life.
*Please see the warranties and resources section at the end of this guide for more information on the discontinued S4 series.
Please refer to your Hotronic manual for additional information regarding your Hotronic product.
All Hotronic products are under a limited 2-year warranty. File a claim via the red button below.
Regarding warranty questions related to the 2024 XLP-C batteries:
As long as you are using the re-charging cable that came with your kit, you can use any wall charger with a compatible USB slot and this will not void the warranty.
All XLP batteries are lithium-ion and CANNOT be replaced via an expidited air service. They MUST re-ship via UPS or USPS Ground Service.
Please, no phone calls. We are a small team and will help you to get you warranty claim sorted. The time it takes to fullfill a warranty request will depend on inventory availability. We require defective items back before sending out new inventory. We understand the urgency for these systems since many use these sytems for ski trips or on-mountain work. However, it may not be possible to turnaround as quickly as what may be requested.
For any additional questions about your Hotronic product from Utah Ski Gear,
please email support@utahskigear.com We are very responsive by email and aim to get back to all emails in 1-2 business days or sooner.
Have a warranty claim for an order that was not placed or fullfilled by Utah Ski Gear?
Please reach out to the business you ordered your product from, or contact Hotronic directly: support@hotronic.com
Please refer to your Hotronic manual for additional information regarding your Hotronic product.
All Hotronic products are under a limited 2-year warranty.
Please submit your warranty request via the red box below.
When it comes to the warranty process for the S4+ systems, after testing and proof of being within the 2-year warranty period, we are moving forward with replacing those with the XLP 1C Custom set since the S4+ batteries are no longer in production.
If we do not have inventory to fulfill your warranty, please get in touch with support@hotronic.com and they are happy to finish the process.
For any additional questions about your Hotronic product from Utah Ski Gear, please email support@utahskigear.com We are very responsive by email and aim to get back to all emails in 1-2 business days or sooner.
Please, no phone calls. We are a small team and will help you to get you warranty claim sorted. The time it takes to fullfill a warranty request will depend on inventory availability. We require defective items back before sending out new inventory. We understand the urgency for these systems since many use these sytems for ski trips or on-mountain work. However, it may not be possible to turnaround as quickly as what may be requested.
Have a warranty claim for an order that was not placed or fullfilled by Utah Ski Gear? Please reach out to the business you ordered your product from, or contact Hotronic directly: support@hotronic.com
