Smart, all-day warmth—head to toe.
The Lenz rcB 2000 lithium packs are the heart of the Lenz Body Heat System, delivering reliable warmth from your socks to your jacket. Compact, lightweight, and powerful, these rechargeable packs clip in easily via push buttons and provide up to 22 hours of consistent heat for work, sport, or everyday cold-weather missions.
Control the heat directly on the battery (three levels) or fine-tune it on your phone with the Lenz Heat App for stepless temperature control—perfect when the packs are buried under layers. The included charging cradle doubles as a transport case and offers both fast-charging and storage modes to keep your batteries healthy for the long run.
Stay warm, keep blood flowing, and perform at your best—no matter how deep winter gets.
Specifications:
Compatible with all Lenz Heat Socks, Gloves, Vests, Jackets & Pants
Up to 22 hours of heat per charge
Adjustable output: 3 levels on battery or stepless via app
Weight: 115 g per pack
Dimensions: 8.5 × 5.5 × 1.5 cm
Temperature protection for safe charging
Includes: 1 pair of rcB 2000 batteries, charging cradle, USB-C cable, contact protectors, colored rubber bands
Please read our full return policy here.
We accept returns on items that are in like-new condition within 15 days of original purchase.
Items on sale are final sale and are not eligible for returns or exchanges.
The following items are final sales:
We do not accept international returns
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