Warmco D4 Rechargeable Camping Fan & LED Lantern — 20,000mAh Battery, Quiet Brushless Motor

The Warmco D4 is a 2-in-1 rechargeable camping fan and LED lantern with a 20,000mAh battery that delivers long-lasting cooling, quiet operation, and emergency phone charging.

Built for outdoor trips, power outages, and compact living spaces, the Warmco D4 combines a slim footprint, foldable stand, and an integrated hanging hook so you can direct airflow or cast light where you need it. With brushless motor efficiency and a five-blade design, the D4 balances strong airflow and low noise. Its large-capacity battery keeps the fan running for hours and doubles as a power bank when your devices need juice.

How long will the Warmco D4 keep a tent cool?

The D4 runs up to 48 hours on the lowest speed and about 15 hours on the highest setting from a single charge, making it suitable for overnight trips and multi-day outings without frequent recharging. Four speed settings let you choose between extended runtime and maximum airflow.

• 20,000mAh battery: up to 48 hours on low, 15 hours on high
• Four adjustable speeds for runtime versus power trade-offs
• 5-blade fan design produces steady, wide airflow
• LED display shows remaining battery and selected speed

Will the fan be too noisy for sleeping or reading?

Thanks to its brushless motor and optimized large blades, the Warmco D4 operates under 45 dB on the lowest setting—quiet enough for sleeping, reading, or focused work. Noise increases at higher speeds but remains less intrusive than many compact fans.

• Under 45 dB on speed 1 for near-silent operation
• Brushless motor for smoother, quieter performance
• Large blades move more air at lower RPMs to reduce noise
• Simple controls let you select the quietest effective speed

How does the D4 handle lighting and emergency power needs?

The Warmco D4 doubles as an LED lantern with an integrated hook for hanging inside tents or over a camp stove, providing usable illumination without carrying a separate light. A 5V/2.4A USB output lets you charge phones or small electronics when external power isn’t available.

• Built-in LED lantern for overhead or directional light
• Integrated hanging hook for tents, branches, or rafters
• 5V/2.4A USB output serves as an emergency power bank
• Detachable cover for easy cleaning and maintenance

Is the Warmco D4 truly portable and easy to pack?

The fan’s slim profile—about 1.77 inches thick and 8 inches wide—plus a foldable stand and lightweight 1.72 lb body make it easy to slide into a backpack or stash in tight tent corners. Its compact size keeps it practical for car camping, backpacking where weight matters, and small apartments.

• Slim 1.77" depth and 8" width for compact packing
• Lightweight 1.72 lb construction for easy carrying
• Foldable stand that collapses flat for storage
• Durable design made for outdoor handling and travel

Who is this for? The Warmco D4 is aimed at campers, van-lifers, festival-goers, and anyone who needs dependable cooling and light without relying on mains power. It’s a practical choice for people who value quiet operation, long runtime, and a dual-purpose device that reduces what you need to pack. If you want a compact, multi-function fan that can also charge your phone in a pinch, the D4 offers a balanced blend of portability, battery life, and useful features.