Therm-ic C-Pack Batteries 1700B – Rechargeable, 3 Heat Levels for Winter Foot Warmth

Warm, reliable warmth for winter adventures

When the cold bites, your feet can slow you down. Therm-ic C-Pack batteries are designed to deliver steady, zone-specific warmth inside compatible insoles, so you can focus on the moment—whether you’re carving a slope, trekking a snow-dusted trail, or camping through frost-kissed mornings.

These rechargeable batteries come in two performance options: 1700B and 1300B. The 1700B offers longer heat time up to 17 hours, while the 1300B provides up to 13 hours of warmth. Both models feature three heat settings to match the conditions, and the higher-capacity units offer Bluetooth connectivity for quick adjustments via a smartphone when you’re on the go.

A user-friendly USB charger is included, so you can recharge between outings. A wall charger isn’t included, giving you flexibility to charge via USB from a computer, power bank, or compatible adapter. Full charge typically takes about four to five hours, so you’ll be ready when you are.

How it fits into your winter kit

For warmth without sacrificing mobility, the C-Pack batteries feed heat to Therm-ic Insoles Heat Flat, Heat 3D, and Heat Kit ranges. The result is targeted warmth inside your footwear that remains comfortable as you move—from early-morning boot fits to late-night summit approaches.

• Three heat settings give you control over warmth levels while you ride, hike, or camp
• Bluetooth-enabled 1700B and 1300B models let you adjust heat from your smartphone
• USB charger included for convenient recharging on the go
• Longer runtimes—up to 17 hours on 1700B and up to 13 hours on 1300B
• Compatible with Heat Flat, Heat 3D, and Heat Kit insoles for a warm-in-shoe experience
• Wall charger not supplied; recharge via USB with a computer, power bank, or adapter

Real-life use cases

Imagine sliding into insulated boots after a crisp ski run, hands on your poles and feet wrapped in a steady, comfortable warmth. Visualize a winter hike where heat on demand helps you maintain endurance through chilly gusts, or a campsite morning where a gentle warmth eases the cold from your boots before you start the day. The Bluetooth capability makes quick changes on the move, and the USB charging keeps your system ready for the next leg of your journey.

About Therm-ic

Therm-ic has a long history of portable warmth solutions dating back to the invention of heated ski-boot systems. Building on decades of innovation, the brand offers a range of heating technologies designed for outdoor enthusiasts who value reliable warmth in cold environments.