Lenz Lithium Pack rcB 1400
- Rechargeable lithium battery pack for all Lenz heated products
- Secure push-button connection to compatible Lenz gear
- Heat control via Lenz Heat App (9 levels) or directly on the pack (3 levels)
- Lightweight and compact - approx. 95g
- USB-C charging cable included
- Easy charging in the included charging cradle (including fast & storage charge settings)
- Compatible with chargers from rcB 1200, rcB 1800, rcB 2000 and Heat Pack
What's Included
- 1 x Lenz Lithium Pack (2 batteries)
- 1 x Charging cradle
- 1 x Charging cable
- 2 x Contact Protectors
- Free Heat App (Apple App Store & Google Play)
- Safety precautions & instructions for use
Pairs well with
In stock! Ships next business day.
Free shipping on orders $100+
Easy Returns & Exchanges
1-Year Warranty
Lenz Lithium Pack rcB 1400
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
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Body Heat System
The Lenz Body Heat System is the most flexible heating system on the market. The lithium-ion batteries are compatible with all products in the Lenz Body Heat line, from feet to hands.
Thanks to the integrated Bluetooth module, the rcB batteries are compatible with the free Lenz Heat App, making heat control even more convenient and flexible.
Free shipping on orders $100+
Why Choose Lenz?
Founded in 1987, Lenz is an Austrian pioneer in heated clothing and functional textiles. With decades of experience designing for cold alpine environments, Lenz combines precision heating technology with high-quality materials and advanced battery systems to deliver reliable, all-day warmth - trusted by winter athletes and outdoor enthusiasts worldwide.
FAQs
Please read our FAQs page to find out more.
Which battery pack should I choose?
We recommend the Lithium Pack rcB 1400 for the Heat Socks.
For Heat Gloves, Vests, Jackets, and Pants, we recommend the Lithium Pack rcB 2000, which has a higher capacity to support garments that require more power.
Both battery packs are compatible with all Lenz heat products — the difference is run time and power capacity.
How long do the batteries last?
The Lithium Packs provide up to 22 hours of heat, depending on the heat level selected and conditions.
To learn more about battery run times, read the Safety precautions & instructions for use manual.
How should I store my batteries?
The Lenz charging cradle includes a storage mode designed to keep battery packs in optimal condition when they’re not being used for extended periods.
For best battery care:
- Store batteries half-charged using storage mode
- Keep them in a cool, dry place
- Ensure batteries are turned off and disconnected from the heated product
- Always store batteries with the contact protectors attached
For long-term storage, it’s recommended to discharge and storage-charge the batteries once every 6 months to maintain performance and battery life.
To learn more read the Safety precautions & instructions for use manual.
How quickly do you ship?
Orders are typically shipped next business day from our warehouse in NSW.
Can you ship battery packs via Express Post?
Due to airline safety regulations, lithium battery packs cannot be sent via Express Post to QLD, WA, NT, SA or TAS. Orders to these states will be sent via regular post.