Why the fan doesn't spin when you connect the heatsink to the charger?

For the radiator to work properly, it must be connected to a charger that has at least 15W of power.After connecting the charger, the switch on the side of the radiator is also required to turn on to make the fan rotate.

Can I connect the FunCooler 4 cooler to a mobile power?

You can. However, FunCooler 4 coolers are 15W, so you need to use a mobile power source of 15W or higher to ensure proper operation.

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Black Shark FunCooler 5 Magnetic Smartphone Cooling Radiator with RGB Cooling Fan, Detachable Grip, Portable Phone Radiator, Smartphone Cooler for iPhone Magnetic Series/Android, Suitable for Gaming

Black Shark FunCooler 5 Magnetic Smartphone Cooling Radiator with RGB Cooling Fan, Detachable Grip, Portable Phone Radiator, Smartphone Cooler for iPhone Magnetic Series/Android, Suitable for Gaming

Product ID: 739860803

Details

Brand
Black Shark
Compatible Devices
Smartphone
Cooling Method
Air
Material
Copper Metal
Maximum Rotational Speed
6500 RPM
Noise Level
30 Decibels

🌈Dynamic RGB lighting effects

🔇Whisper-quiet <40dB operation

❄️15W ultra-fast Peltier cooling

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€ 63.60

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Stay Cool, Game On: The Ultimate Chill Companion for Your Smartphone

SILENT YET MIGHTY - 7 whisper-quiet fans hum below 40dB so you stay focused without distraction.
RGB AMBIANCE BOOST - Customizable RGB lighting elevates your gaming vibe, making every session a visual spectacle.
BLAZING FAST COOLING POWER - 15W Peltier tech slashes device temps by up to 58°F, keeping your phone chill under pressure.
ERGONOMIC VERTICAL AIRFLOW - Innovative vertical duct design directs heat away from your hand for ultimate comfort during marathon sessions.
UNIVERSAL FIT LIGHTWEIGHT - Telescopic clip fits any smartphone (68-85mm) and weighs just 90g — barely there, always ready.

The Black Shark FunCooler 4 is a compact, USB-C powered smartphone cooling fan featuring a high-performance 15W Peltier element and 7 silent fans that reduce device temperature by up to 58°F (32°C). Designed with ergonomic vertical airflow and a telescopic clip, it fits most smartphones (68-85mm) comfortably while weighing only 90g. Enhanced with dazzling RGB lighting and operating quietly below 40dB, it’s the perfect accessory for gamers and power users seeking sustained performance and style.

Specifications

ASIN	B0F4D5TFQ2
Amazon Bestseller	#1,267 in Computers ( See Top 100 in Computers ) #4 in USB Fans
Brand Name	Black Shark
Compatible Devices	Smartphone
Cooling Method	Air
Country Of Origin	China
Customer Reviews	4.0 4.0 out of 5 stars (1,404)
Included Components	2 x Removable Retainers
Item Dimensions L x W x H	6L x 6W x 2.7H cm
Item Weight	80 Grams
Manufacturer	Black Shark
Material Type	Copper, Metal, Plastic
Maximum Rotational Speed	6500 RPM
Model	BR50
Noise Level	30 Decibels
Number of Items	1
Part Number	BR50
Power Connector Type	USB Type-C
Voltage	5 Volts (DC)
Wattage	20 W

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