Unpack your Thermo Product, along with the Li-Ion Polymer batteries and adapter. The batteries are not charged and must be fully charged for 9 hours before first use.

The Y-Cable is already connected to the main adapter cable. Connect the adapter cables to the sockets of the batteries. Then plug in the adapter to the outlet to charge the batteries. Additional batteries can be purchased separately to extend the heating time.

The adapter is designed to protect and guarantee a long life of the batteries. Overcharging is not possible.

The two LED lights on the Y- cable turn to red during loading and then change to green after loading is completed! If for any reason the charger detects irregularities during charging, the safe charge function will be activated, resulting in an increase of the charging time. After the batteries are fully charged, unplug the adapter and disconnect the cables from the batteries. Store the batteries in the pouch and close the zipper or Velcro.


When using your Thermo Product open the battery pouch and connect the cables, which are inside the pouch, to the sockets of the battery firmly. Store the battery inside the pouch and close the zipper or Velcro.

The heating mode is activated by pressing the ON/OFF keypad control button for about 3 seconds. The LED light on the keypad control will then flash and light up, indicating that the Thermo Products are in the heating mode.

The temperature can be adjusted by pressing and releasing the keypad control button.

L - Green LED
M - Yellow LED
H - Red LED
  34 °C with approximate heating time of 4 – 5 hours
39 °C with approximate heating time of 3 – 4 hours

44 °C with approximate heating time of up to 2 hours

Please note that the actual heating time always depends on the surrounding temperature. The Li-Ion batteries reach its full power after having been fully charged and fully drained several times! Additional batteries can be purchased separately if extended heating times are needed!

Turn OFF the Thermo Products by pressing the ON/OFF keypad control button several seconds until the LED light turns off. Always unplug the batteries when the products are not in use and store them inside the pouch.

The high-quality 2.700 mAh Li-Ion Polymer Batteries (no memory effect!) cannot be damaged by frequent charging and can be re-charged approximately 500 times!


THERMO SLIPPERS can be used as regular slippers or as shoes. Please follow these easy steps to convert the slippers to a shoe: Take out the inner soles and slide the heel-attachment over the heel of the inner sole. The Velcro will hold both parts together. Now slide the soles with the attached heel portion into the slipper. Press down the heel in order for the Velcro to guarantee a secure fit. Secure the straps of the heel-attachment with the Velcro on the inner side of the slippers for a final adjustment and secure fit of the heels.


For best performance it is recommended not to fully charge the batteries if the Thermo Product are not being used for a longer period of time! Charge for 30 minutes only and after 3 months charge the batteries again for about 30 minutes!

Charge the batteries completely before using the Thermo Product again.

  • Turn OFF the Thermo Products when not in use
  • Always unplug the batteries when the Thermo Products are not in use
  • Store the Thermo Products in a cool, clean and dry place
  • Only use the original adapters to charge your Thermo Products
  • Do not damage the heating elements by excessively stretching or twisting the materials
  • Do not cut or puncture your Thermo Products
  • The temperatures were measured directly on the heating elements
  • Do not dry clean
  • Do not iron


  • Remove the batteries.
  • Close the Velcro or zipper of the battery pouch.
  • Hand wash only! Please use a mild detergent and treat your Thermo Products carefully.
  • Air-dry only! Do not place your Thermo Products on radiators or any other hot surface!
  • Let the Thermo Products dry completely before charging again.


Please perform the following test in case you feel that the Thermo Products are not heating correctly:

  •  Charge the products completely.
  • Now turn ON the products by pressing the ON/OFF keypad control button about 3 seconds until the LED light turns on!
  • Place the Thermo Products in the refrigerator for 5 – 10 minutes.
  • Check the LED lights of the Thermo Products after taking them out of the refrigerator again.
  • If the light is ON, then the products are in the heating mode and you should feel the warmth after about one minute.

BatteriezeichenDiscard the THERMO PRODUCTS with approved collection agencies only! In order to save our environment, do NOT dispose the products in your normal household trash. Discard the batteries separately!


In connection with the sale of batteries or with the delivery of devices that contain batteries, we are under obligation to bring the following to your attention:
As the end user, you are legally under obligation to return used batteries. You can return old batteries, which we offer or have offered in our new battery assortment, free of charge to our dispatch warehouse (dispatch address). The symbols showed on the batteries have the following meaning: The symbol of the crossed-out dustbin means that the battery may not be discarded with the household waste.

Pb = Battery contains more than 0.004 percent by mass of Lead
Cd = Battery contains more than 0.002 percent by mass of Cadmium
Hg = Battery contains more than 0.0005 percent by mass of Mercury.
Please pay attention to the above instructions.

If you want to dispose of the batteries, please separate the fabric cover from the battery.

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80 % of the women suffer from cold feet and not only during winter! The temperature of your toes can go down to 8 degrees!

Reduction of body temperature and even cold feet causes bladder infections, abdominal disorders, stomach and intestinal disorders, and even an increased susceptibility to yeast infections and to serious circulation problems.

The Thermo Slippers have 3 different temperature levels with 34 degrees C, 39 degrees C and 44 degrees C.

Did you know?

Cold feet can be dangerous. According to a Study of the Cardiff University in Wales the relation between cold feet and catching a cold is proven.
This problem can be solved with heated house slippers, like the THERMO SLIPPERS.

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