How long does the battery last?

Typically 4 to 8+ hours depending on the heat level used.

How long does it take to charge?

About 4–6 hours using a USB-C cable and compatible adapter.

Can I use it while charging?

No. Heating is disabled while charging for safety reasons.

Why is my hand warmer not heating?

It may need charging, a longer power-button hold, or may be in charging mode.

Yes. It includes built-in temperature control to prevent overheating.

How should I store my hand warmer when I’m not using it for a long time?

Store it in a cool, dry place away from direct sunlight. For long-term storage, keep the battery partially charged (not fully empty or fully full) to help maintain battery health.

Can I take it on a plane?

Yes, it is generally allowed in carry-on luggage due to its lithium battery (always check airline rules).

What if my product arrives damaged?

Contact support with photos and a replacement or refund will be arranged.

How does the give-back program work?

Every hand warmer purchased automatically triggers a pair of gloves donated to someone experiencing homelessness. For every tenth purchase, a full hand warmer is donated directly.

Is Warmify Lab an ethical brand?

Yes. Social impact is built into every purchase — not as an add-on, but as the core reason we exist. We chose to prioritise giving back even at the cost of profit margin.

Hand Warmer FAQs | Warmify Lab

Frequently Asked Questions

Find answers to common questions about our products

How long does the battery last?

Typically 4 to 8+ hours depending on the heat level used.
How long does it take to charge?

About 4–6 hours using a USB-C cable and compatible adapter.
Can I use it while charging?

No. Heating is disabled while charging for safety reasons.
Why is my hand warmer not heating?

It may need charging, a longer power-button hold, or may be in charging mode.
Is it safe to use?

Yes. It includes built-in temperature control to prevent overheating.
How should I store my hand warmer when I’m not using it for a long time?

Store it in a cool, dry place away from direct sunlight. For long-term storage, keep the battery partially charged (not fully empty or fully full) to help maintain battery health.
Can I take it on a plane?

Yes, it is generally allowed in carry-on luggage due to its lithium battery (always check airline rules).
What if my product arrives damaged?

Contact support with photos and a replacement or refund will be arranged.
How does the give-back program work?

Every hand warmer purchased automatically triggers a pair of gloves donated to someone experiencing homelessness. For every tenth purchase, a full hand warmer is donated directly.
Is Warmify Lab an ethical brand?

Yes. Social impact is built into every purchase — not as an add-on, but as the core reason we exist. We chose to prioritise giving back even at the cost of profit margin.