The heating pad lies between the navel and the pubic bone and transfers the heat to the lower abdomen. A dense fabric (similar to soft shell) lies over the heating pad so that as much heat as possible is transferred to your body.

The heating time per battery depends on the selected heating level.

Heat level 1 = 7.5 to 8.0 hours per battery

Heat level 5 = 4.0 to 4.5 hours per battery

Heat level 9 = 2.0 to 2.5 hours per battery

In some cases, the interval function is ideal for use at night, in order to extend the period of use through heating breaks even when there is a high demand for heat.

Depending on where and how long you use the panties. A battery lasts you up to 8 hours and then you have to charge it again. You can also buy rechargeable batteries later if you don't have enough warmth for your adventures.

As a guideline: the most frequently used heat level (in the sana heat app) is between 4 and 7. So you can assume that the battery will then provide heat for around 4.5 hours.

You can also switch off the LEDs during operation using the free sana heat app. The heating output is not affected.

The LEDs cannot be switched off without an app.

The panties are made of fibers used in sports. They are washed at 30°. You can also use your own liquid detergent for sports fibers. Before washing, the batteries must be removed - these must NOT be washed.

Washing instructions are woven into the inside of the waistband. With liquid detergents (special liquid detergents for sportswear are also suitable) the panties are already clean at 30°. The battery must be removed before washing!

If used regularly, there are no special points to be observed for maintenance. Before storing the batteries for a longer period of time, first discharge them, charge them halfway again and disconnect them from the charger (see instructions for use). Please use the supplied contact protection for storage or taking it with you in your bag.Store in a cool and dry place at 5°C to 20°C.Long periods of non-use should be avoided, batteries remain “fit” longer if they are used regularly. In the case of long-term storage, discharge and half-charge the batteries every 6 months. Charge fully before each use. Never put them in the washing machine with or without panties! Please read the instructions for use carefully and contact us if you have any questions.

The set includes a power supply unit to which the supplied USB cable can be connected. The USB cable is also used for mobile use, such as on a PC or your power bank.

With our heat app you can adjust the heat even more precisely to your needs over 9 levels. In addition, an interval function can also be used via the sana heat app, in which you determine how long the heating and rest phases are. For even more discretion, the LEDs on the battery can also be switched off during use. You can also see how much energy is left in your lithium-ion batteries.

The sana heat app for Android and iOS can be obtained free of charge from the respective shops.

There is a push button on the lithium-ion battery that can be used to control the heat directly. The LEDs show you which of the 3 heating levels (light, medium or high) is activated.

Yes, the panties are available in our shop with and without a battery.

The batteries must be handed in at collection points for old batteries. Please dispose of the charger separately as electronic waste.

The panties can be disposed of as residual waste. Please do not drop off at collection points for old clothes.

Depending on the airline, there are slightly different guidelines for batteries. sana® lithium packs have the following technical data: 3.7 V, 3600 mAh, 13.32Wh. You can also see this data on the back of the sana® rechargeable batteries. Many airlines only allow you to take the batteries with you in your hand luggage! Please be sure to find out what the airline's requirements are before checking in your luggage! This is constantly changing and we cannot keep it up to date on our site.

Please make sure that the contact buttons of the batteries are always protected with the silicone cover. Never leave your batteries in the car / camper / etc. - there is a risk of overheating in direct sunlight and severe sub-zero temperatures can damage your batteries.
If you travel by ship, plane,... find out directly from the respective company which rules apply to lithium ion batteries!

They are not! Heat has been used for a very long time to relieve pain and promote well-being. Our products have not been developed to diagnose or cure diseases.