HearthCore™ Heated Vest Instruction Manual


Thank you for choosing Hand Hearth. This guide will help you get the most out of your HearthCore™ Heated Vest, from setup and charging to adjusting heat levels, caring for your product, and troubleshooting.



Table Of Contents

Welcome To Your HearthCore™ Heated Vest

Thank you for purchasing your HearthCore™ Heated Vest. At Hand Hearth, we're committed to keeping you warm, comfortable, and confident in every environment.
Before using your new product, please take a few minutes to read this quick start guide. It contains important safety notes, setup instructions, and care tips to help you get the best experience.

Safety First

Please read these safety notes before using your Hand Hearth heated garment:

  • Always remove the battery before washing your garment.
  • Do not sleep in your heated clothing unattended.
  • Keep away from water and flammable materials.
  • Do not use if damaged or malfunctioning.
  • Only use official Hand Hearth power banks and chargers.
  • Not recommended for children, infants, or pets.

What’s In The Box

Here's everything you'll find when unboxing your Hand Hearth HearthCore™ Heated Vest:

  • 1 × Hand Hearth HearthCore™ Heated Vest
  • 1 × Quick Start Guide (digital via QR code)

Product Overview

Your HearthCore™ Heated Vest is powered by our advanced heating technology, featuring nine discreet panels designed to keep your core warm without added bulk.

  • 9 Integrated Heat Zones: 6 across the back, 2 at the chest, and 1 at the neck.
  • One-Touch Chest Button: 3 adjustable heat levels: Low (25°C / 77°F), Medium (35°C / 95°F), High (45°C / 113°F).
  • Discreet Battery Pocket: Keeps your power bank secure and hidden.
  • Slim, Flattering Fit: Designed for effortless layering over or under light clothing.
  • Lightweight Fabric: Wind-resistant material built for everyday wear.
  • Extended Runtime: Up to 10 hours of warmth when paired with a 10,000mAh power bank.

Charging The Battery

Your HearthCore™ Heated Vest requires a USB power bank to operate. Please follow the guidance below:

If You Purchased a Hand Hearth Power Bank
  1. Connect the USB-C charging cable to the power bank.
  2. Plug the other end into a wall adapter, laptop, or USB port.
  3. The LED indicators will show charging progress. Charging is complete when all LEDs remain solid.

If You're Using Your Own Power Bank
  • Output: Must be 5V/2.4A minimum.
  • Capacity: 5,000mAh or higher recommended for optimal runtime.
  • Connection: USB-A or USB-C (via the included vest cable).
  • Safety: For performance and safety, only use CE/FCC-certified power banks.

For best performance, we recommend using official Hearthcell power banks.

Powering On & Heat Settings

  1. Connect your charged power bank to the USB cable inside the vest pocket.
  2. Press and hold the chest power button for 3 seconds to turn on.
  3. Tap the button once to cycle through the heat levels (Low, Medium, High).
  4. Press and hold for 3 seconds to turn off.

Care & Maintenance

With proper care, your HearthCore™ Heated Vest will deliver reliable warmth season after season.

Washing Instructions
  • Always disconnect and remove the power bank prior to washing.
  • Machine wash at 30°C (cold) on a gentle cycle.
  • Use mild detergent. Do not bleach.
  • Air dry only. Do not iron or dry clean.
Storage Instructions
  • Ensure both the garment and battery are completely dry before storing.
  • Store in a cool, dry place away from direct sunlight.
  • Disconnect and store the power bank separately. Charge to ~50% every 3 months during seasonal storage.

Troubleshooting

Vest Not Heating
  • Vest not switched on: Press and hold the chest power button for 3 seconds.
  • Power bank not switched on: Press the power bank button to activate output.
  • Battery not connected properly: Ensure cable is firmly plugged into the battery pocket and battery.
  • Battery empty/dead: Fully recharge before use.
  • Cable loose/damaged: Try another cable if available.
  • Faulty heating panel: Contact support for replacement.
Power Button Not Lighting
  • Button not held long enough: Press and hold for 3 full seconds.
  • Battery flat: Recharge battery fully.
  • Connection issue: Reconnect cable, check port for debris.
  • Faulty power button: Contact support if still not working.
Uneven or Weak Heating
  • Vest too loose: Ensure a snug fit so heating zones contact your body.
  • Garment folded/creased: Smooth out folds to avoid blocked heat flow.
  • Battery low: Recharge battery fully.
  • Too many outer layers: Use medium/high heat when wearing heavy coats over the jacket.
  • Extreme cold conditions: Keep the battery warm in an inner pocket.
Battery Not Charging
  • Faulty/incompatible charging cable: Try another USB cable or adapter.
  • Dust/debris in port: Clean port carefully before charging.
  • Battery end-of-life: Contact support for replacement battery.
Battery Drains Too Quickly
  • Using high heat continuously: Switch to medium/low for longer runtime.
  • Battery not fully charged: Charge to 100% before use.
  • Cold weather: Keep battery in inner pocket to preserve performance.
Flashing Lights / Unusual Behavior
  • Safety cut-off triggered: Disconnect battery, let it cool for 15 minutes, then reconnect.
  • Fault detected: If problem continues, contact support.

Warranty & Support

All Hand Hearth products are covered by our standard quality guarantee.

  • 60-Day Money-Back Guarantee on all items.
  • 60-Day Replacement Warranty for manufacturing defects.

How to Claim

To request a replacement or claim under warranty, please provide:

  1. Your order number
  2. A brief description of the issue
  3. Clear photos or videos if possible

Complete Your Heated Kit

Ready to explore more? Discover our full heated clothing collection and find the perfect gear to keep you warm this winter.

Still Need Help?

Our support team is here to help you get back to warmth quickly.
Please include your order number so we can assist you faster.
We aim to reply within 24 hours (Mon–Fri).

Complete Your Heated Kit

Ready to explore more? Discover our full heated clothing collection and find the perfect gear to keep you warm this winter.