Mobile Battery 21V High Output 20000mAh Large Capacity USB DC Air-Conditioned Clothing

This item was a gift, but I am selling it as I will not be using it.

・Limited quantity! First come, first served!
・Fast shipping (within 24 hours)
・Retail price: ¥6,999

＊＊ 10% OFF with Follow & Repeat Discount! ＊＊
If you follow me and let me know before purchasing, I will change the price to 10% off! Repeat customers can also receive a discount by letting me know! ^ ^

[21V High Output & Reliable 20000mAh Large Capacity & Up to 26 Hours Continuous Operation] Newly released in 2026, this DC21V high-output air-conditioned battery boasts a reliable 20000mAh capacity and can operate continuously for up to 26 hours. Even in the strongest wind mode (21V), it can operate continuously for about 6 hours, efficiently supporting outdoor work in the scorching sun while keeping you comfortable.

[USB/DC Dual Output & Wider Compatibility & Great for Various Scenes] This air-conditioned workwear mobile battery can function with both USB and DC output. (Note: USB and DC 2 ports cannot be used simultaneously.) Compared to regular mobile batteries, batteries with USB and DC dual output have higher compatibility and can charge not only air-conditioned vest batteries but also various devices such as all mobile phones, tablets, AirPods, Bluetooth headphones, neck coolers, smartwatches, and more. It can charge an iPhone 14 about 3.5 times, a Samsung Galaxy S10 about 3 times, and most other smartphones multiple times.
[PD15W Fast Charging & LED Remaining Capacity Display & Slim Design] The 21V battery is equipped with a Type-C input port (5V/3A), allowing it to be fully charged in about 6 hours with a fast charger. The battery's remaining power is also indicated by a lamp! The remaining capacity is clear at a glance: press the power button, and 4 levels of remaining capacity lamps will light up in green.

[Multi-Safety Circuit Protection & PSE Certified & Enhanced Safety]

CoolFlag Air-Conditioned Workwear Battery 21V High Output 20000mAh Large Capacity [PD15W Fast Charging Compatible & DC/USB 2-Way Output] Type-C Input 4-Level Airflow Adjustment LED Remaining Capacity Display Battery for Workwear Fans Smartphone Charger Lightweight Compact PSE Certified for Outdoor/Business Trips/Disasters/Emergencies Power Outage Countermeasures Disaster Preparedness Goods