LENZ Battery FAQ | Frequently Asked Questions

About lithium pack:
  • How long do lithium packs last ?

Click here for the Lenz heat app . Please see the temperature setting overview.

  • What is the difference between the RCB 1200-lithium battery pack and the RCB 1800-lithium battery pack ?

Lithium Battery Pack 1200 / RC1200—Lithium Battery Pack / RCB1200 Lithium Battery Pack / RCB1800—Lithium Battery Pack has the following features. :

- Longer duration (Please see the temperature setting overview. RCB1800 is warmer and can be used for a longer time than RCB1200.)

- Three-stage temperature setting is possible.

・Equipped with temperature adjustment display

・Equipped with function buttons that allow different temperature settings

・The RC1200 operates only with the remote control, but the RCB1200/RCB1800 series operates with the Lenz heat app (temperature adjustment can be done with a smartphone) and the remote control.

  •  Compatibility of LENZ lithium packs and LENZ products

Lenz heated socks

RCB1200 - Lithium battery pack

RCB1800 - Lithium battery pack

Lenz heat vest/waist warmer

RCB1200 - Lithium battery pack

RCB1800 - Lithium battery pack

Lenz heated gloves

Battery pack Glove Type 2

LED system

RCB1200 - Lithium battery pack

RCB1800 - Lithium battery pack

  • Why is the lithium pack's LED light on even though the lithium pack is not powered on?
When the center LED light flashes (every 2-3 seconds), it indicates that the lithium pack is in standby mode. The switch-off time depends on the heat production of the lithium pack. Please read the manual carefully and refer to the diagrams below. The Lithium Pack RCB does not heat up when switched to heat generation level (1, 2, or 3) when no heated socks/vest or waist warmer are attached or when the battery is in standby mode (middle LED flashes). There is an auto-shutdown feature that automatically turns off when socks/vests or waist warmers are not attached (power off).

Lithium pack RCB 1200

Lithium pack RCB 1800

The left pushbutton is surrounded by a red frame.

The middle pushbutton on the left is surrounded by a red frame.

Shutdown time: 10 minutes

Shutdown time: 12 hours

  • What should I do if my lithium pack doesn't change from standby mode to power off mode and the light keeps blinking?

・Please make sure that heat socks/vests/waist warmers are not connected to the lithium pack.

- Make sure the Lenz Heat app is completely closed on your smartphone and not connected via Bluetooth .

・Make sure there is no active connection between the lithium pack and Bluetooth enabled devices (BLE devices).

-Press the power button on the lithium pack to switch the lithium pack to standby mode.

  • How do I know if my lithium pack will work with the LENZ Heat app?

A Bluetooth-enabled lithium battery pack has a "Bluetooth" icon on the front and a "Bluetooth Smart" mark on the back.

Lenz Bluetooth battery

  • How can I store it for a long time?

After discharging the lithium pack's current, please charge it only half way. (Please refer to the manual for instructions. ( download instruction )

Please do not fully charge. Turn off the power to the lithium pack and store it disconnected from the charger. We also recommend that you discharge your lithium pack every 6 months and then half-charge it again. Proper storage of lithium packs will improve battery performance and longevity.

  • How do I know if it's only half charged?

After fully discharging the lithium pack, charge it for about 1-2 hours. With the lithium battery pack RCB 1200/RCB 1800, you can check the charging status at any time using the Lenz heat app.

  • Please tell me why a rubber ring is included in the package.

All sets of lithium battery packs RCB 1200 / RCB 1800 include 3 x 2 elastic rubber rings. These colored rubber rings make it easier to mix and match battery packs, for example when more friends/family use the same lithium battery pack. In that case, you can mark the battery pack with one color (e.g. yellow) and the other person can mark the battery pack with a different color (e.g. red). Rubber rings can be fixed between batteries.

Therefore, even if the lithium pack is already synced to the Lenz Heat app, there will be no confusion due to the lithium pack being mixed up.

About heat socks/gloves/vests

  • How do heat socks work?

LENZ's heat socks are high-performance socks made from a merino wool blend. The heating part is sewn together with the sock, and the lithium pack can be attached to the leg band with a snap button. It is also possible to cover the lithium pack part with a leg band. The temperature can be adjusted with a lithium pack, remote control, or even continuously with your smartphone. (Lithium battery pack RCB 1200/1800).

leg fit battery

  • Where does heat socks generate heat?

Heat Element 1.0 is placed on the ball of the foot and after a short period of time, heat is distributed throughout the sole of the foot. In addition, the Heat Socks 5.0 toe cap® (registered trademark) has a heating section placed all over the toes, warming them from above and below.

This creates the perfect space where you can feel comfortable and happy.

  • What is the difference between Heat Socks 1.0, Heat Socks Slim Fit 1.0, and Heat Socks 5.0 Toe Cap®?

The Heat Socks 1.0 are ideal for all outdoor activities as they have shin protectors and a heating area just below the toes and on the ball of the foot.

The Heat Socks Slim Fit 1.0 has been intentionally designed to be narrower in the forefoot area for a better fit. It also has a shin protector function and a heating area just below the toes and the ball of the foot, making it ideal for all outdoor activities.

The Heat Socks 5.0toe cap® has a shin protector function and a heating area that completely covers the entire toe. This means that the toes are heated from above and below, creating the most comfortable foot space. These heat socks 5.0 Toe Cap® are suitable for all outdoor activities, but especially for ski boots with a tight toe fit.

Click here for an overview with photos. Overview _

  • How does a heated vest work?

The heat vest's lithium battery can be fixed using the push buttons on the inside of the left and right sides. Heat is also released in the kidneys and back. The temperature can be adjusted continuously via the lithium battery pack, remote control or smartphone (lithium pack RcB 1200/1800).

  • heat socks:

- Machine wash at 30°C.

- Please refrain from washing your hands.

- When washing socks, please use the included laundry bag.

- Please refrain from dehydration.

- Please refrain from tumble drying.

- Please refrain from washing by boiling.

- Do not use bleach.

- Please refrain from using iron. Also, please refrain from dry cleaning.

-Please remove the lithium pack before washing the heat socks.

  • Heat vest: 

- Machine wash at 30°C. (The washing machine has a fashionable washing setting)

- Do not use bleach. Also, please refrain from tumble drying.

- Please do not use iron.

- Please refrain from dry cleaning.

- Before washing, be sure to close the jacket zipper and the Velcro that secures the lithium pack.

- Please remove the lithium pack before washing.

- Do not squeeze the vest or the lithium pack fixing part.

  • Heat gloves: 

- Heat gloves cannot be washed.

-For optimal drying, we recommend our Space Dryer 1.0 or Space Dryer 2.0.

About drying and hygiene

  • Is it okay to use a space dryer without supervision ?

Our Dryer & Warmer products are CE certified (TÜV) and comply with all necessary European regulations and guidelines for safe use.

-Temperature control

-Overheating prevention function

- Space Dryer 1.0 is additionally equipped with an automatic switch-off function that can be adjusted for 1 hour, 3 hours and 6 hours respectively.

*Please see the user manual for details on safety features.

[Contact information for returns and exchanges]

Email address: info@hskiclub-shop.com
Phone number: 080 9576 4381

[Product return address]

Hokkaido Ski Club - Shop
208-40 Takasago, Kutchan-cho, Abuta-gun, Hokkaido 044-0076
Phone number: 080 9576 4381
Person in charge: Han Anthea Claire, Grill Miha