Rechargeable Hand Warmer

Hands go numb in hours below freezing. A rechargeable heat pack keeps dexterity up so you can hold tools, weapons, or radio.

When it matters

• Cold shelter operations: pack in sleeping bag near your core to add thermal mass without adding weight. USB cable powers recovery overnight if a charging source is available.
• Sentinel duty in cold: warming hands between observation rotations maintains alertness and performance. Small weight, no fuel required.
• Medical use: hypothermia recovery protocol includes gradual warming of extremities. Warmer provides controlled heat without overdoing it.

What it does

• USB-rechargeable heating element—heat on demand without chemical reactions or fuel cartridges.
• Single-side or double-side heating options (single warms hands, double warms hand pair).
• Reusable indefinitely: charge via USB port, press activation button, heat lasts 2–4 hours per charge (typical; exact duration depends on model).
• Portable: 115 grams, fits in pocket or sleeping bag.
• Non-obvious: battery thermal extension. In cold, this warmer inside a sleeping bag extends the effective insulation rating by 10–15°F.

Built to last

Rechargeable means you need a power source (solar panel, hand crank, wall outlet). If the heating element fails internally, the entire unit is typically non-repairable. Case may crack if dropped on concrete. Not waterproof—protect from immersion.

Where it fits your kit

EDC/Cold Weather layer. Pairs with Envelope Sleeping Bag (warmer inside bag adds thermal mass) and Camo Field Poncho (poncho blocks wind that cools the warmer effect). Together they layer insulation: poncho blocks wind, bag provides base warmth, warmer adds active heat.

Specs

• Heating type: USB-rechargeable electric element
• Weight: 115 grams
• Colors: Pink, Blue, Green, Beige
• Heating modes: Single-side or double-side
• Connection: USB cable for charging
• Charge time: Typical 2–3 hours (varies by charger)

Field notes

• Store with partial charge in cold climates. A fully depleted battery can freeze; a half-charged battery tolerates cold better.

FAQ

Q: How long does a charge last? A: Typically 2–4 hours on high, 6–8 hours on low (varies by model). Check product specs for your variant.

Q: Can I use this while charging? A: Depends on the model. Some allow simultaneous use and charging; others don't. Test before deployment.

Q: What's the temperature benefit in a sleeping bag? A: A warmer inside your bag can add 10–15°F to effective temperature rating. Experiment before field use to find optimal placement.

Covered by the optional Watchtower Guarantee.

Orders are placed with our fulfilment partner within 1–3 business days and ship tracked from overseas warehouses. Transit to the US is typically 5–11 days. Standard shipping is $7.95, free at $149 in qualifying items. We accept physical-item returns. You pay return postage. Refunds are issued within 45 days of receiving your return. Monthly subscriptions and digital products are non-refundable. Full shipping & returns terms.