Therm-ic S-Pack 3000B Bluetooth batteries for heated socks, 2-pack
1 289 kr
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1 289 kr
Therm-ic S-Pack 3000B Bluetooth batteries for heated socks, 2-pack
Shipping from 39 kr · Choose your delivery option at checkout.
- 14-day right of withdrawal
- Secure payment
- Delivery all over Sweden
- 3-year right to complain
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The heat on your phone
Pair the batteries with Therm-ic's app and adjust the heat on the lift, without hunting for the button.
Snaps onto the cuff
The press studs hold the battery firmly above the boot edge.
Product FAQ
Which socks do the batteries fit?
The S-Pack 2400, 3000B and 4000B fit Therm-ic heated socks with S.E.T® or Heat Fusion technology, such as Heat Fusion One, Ultra Warm Comfort, Ultra Warm Performance, Ultra Warm Nordic and Bike Socks. Older Therm-ic socks like Heat Fusion Uni ND use the older S-Pack 700, 1200 and 1400B.
How do I look after the batteries?
Charge after each use; they can be charged at any level. Don't wear the socks while the batteries charge. Store them half charged, cool (5–20 °C) and disconnected, and top them up at least every six months. Never open the casing and don't use a damaged battery. Recycle worn-out batteries.
Is the heat safe, and can I sleep in them?
Do not sleep with the heat on. Start on level 1 or 2: Therm-ic advises against leaving level 3 on for more than a few minutes, as the skin can get too warm. Check regularly for redness. If you find it hard to feel heat and cold, for example with diabetes or poor circulation, or if you have sensitive skin, ask a doctor before using them. Children should only use them under adult supervision and on the lowest level.
Can the heat interfere with my avalanche beacon?
Therm-ic notes that, like any electronic device, the product can interfere with an avalanche beacon. Test your gear together before heading off-piste.
Can I take the batteries on a plane?
The batteries are lithium-ion, about 11.1 Wh each (calculated from voltage and capacity), well below the 100 Wh limit that usually applies in cabin baggage. Loose batteries go in your carry-on, not in checked baggage. Rules vary, so always check with your airline before you travel.
How fast will it arrive, and can I change my mind?
Delivery options and times are on our Delivery page. You have a 14-day right of withdrawal and a 3-year right to complain – see the Returns page.
Description
S-Pack 3000B is Therm-ic's Bluetooth battery pair for heated socks. You choose the heat level with the button on the battery, or in Therm-ic's Heat Control app on your phone.
With Heat Fusion socks one battery lasts up to 18 hours on level 1, 8 hours on level 2 and 5 hours on level 3, according to Therm-ic's manual. With S.E.T® socks the figures are 14, 6 and 4 hours.
The batteries snap onto the cuff, are dust- and splash-proof (IP64) and charge with the included USB-C cable, both at once, in about 4.5 hours.
The middle option in the S-Pack range: longer heating time than the 2400 and app control.
Features
- 2 batteries 3.7 V / 3,000 mAh with Bluetooth
- Control the heat in the app or with the button
- Up to 18 h on level 1 with Heat Fusion socks, according to Therm-ic
- USB-C charging, both at once, about 4.5 h
- Dust- and splash-proof, IP64
Specifications
| In the box | 2 batteries, USB charging cable (dual USB-C / USB-A), laundry bag |
|---|---|
| Battery type | Lithium-ion 3.7 V / 3,000 mAh (about 11.1 Wh each, calculated) |
| Heating time level 1/2/3, Heat Fusion (Therm-ic) | 18 / 8 / 5 h |
| Heating time level 1/2/3, S.E.T® (Therm-ic) | 14 / 6 / 4 h |
| Charging time (Therm-ic) | About 4.5 h |
| Charging | USB-C, both batteries at once |
| Protection | Dust- and splash-proof, IP64 |
| Bluetooth | Yes, controlled with Therm-ic's Heat Control app |
| Conformity | EU declaration of conformity (Directive 2014/53/EU) according to Therm-ic |
| Fits | Therm-ic socks with S.E.T® or Heat Fusion |
| Warranty (Therm-ic) | 2 years |
Delivery and returns
You choose your delivery option at checkout:
- PostNord – collect at a service point, 2–4 working days – 49 kr
- Instabox – collect from a parcel locker, 1–3 working days – 39 kr
- Budbee – home delivery, 1–3 working days – 69 kr
You have a 14-day right of withdrawal from the day you receive your item. Contact us within 14 days if you want to cancel your purchase.
Read more about returns and withdrawalWarranty and complaints
You have a three-year right to complain about faulty goods under Swedish consumer law. If something is wrong with your item, contact our customer service and we will help you.
Contact customer service