It stopped working, when a device is plugged the digits start blinking. What is happening?

Probably a fuse on the load side.

Do you think I can use it , to charge a motorcycle battery and or “ trickle charge “ ( maintain) a car battery?

You would need some electrical experience and battery charger know how and wire in an amp meter to insure volts times amps does not ever exceed the safe rating of this device. Also need to insure the voltage does not exceed safe voltage to charge a battery at. If you know how, I think it could work for lead-acid batteries but probably not other rechargeable batteries. I recommend instead to use a dedicated battery charger designed for what you are doing.

Will this accept the adapters with a 5.5mm x 2.1mm dimensions? I ask because the images show the plug to be 5.5mm x 2.5mm and 2.1 seems to be standard

The product description says, Output DC connector:5.5mm x 2.5mm (inside"+", outside"-") Reverse polarity converter: 5.5mm x 2.1mm

Will this work and is it safe for a device with 120vac 60hz 5w input and 16v 100ma dc output?

Hi, The 3V~24V 3A power supply just power any device which its input voltage is between 3V and 24V, and input current is equal or less than 3A.Thanks.

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SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm

Product ID: 222351374

Details

Brand
SHNITPWR
Color
Black
Connector Type
Micro USB USB
Item Weight
300 Grams
Material
Metal Plastic

⚡72W max power output

🔄3V-24V adjustable voltage range

🔌14 versatile DC tips included

€ 48.75

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power up smarter, not harder — the ultimate universal adapter for the modern pro.

EFFORTLESS CONTROL - Convenient off switch lets you power down without unplugging—because your time is valuable.
POWER ON YOUR TERMS - Adjust voltage smoothly from 3V to 24V with precision knob and LCD display for zero guesswork.
SAFETY FIRST ALWAYS - Built-in multi-layer protection guards against overvoltage, overcurrent, overheating, and short circuits.
PLUG PLAY VERSATILITY - 14 frequently used tips plus polarity converter cover almost every device—DIY projects just got easier.
UNIVERSAL COMPATIBILITY - Works seamlessly with a wide range of electronics from LED strips to smart speakers and DC motors.

The SHNITPWR 72W adjustable power supply delivers a flexible 3V to 24V output at up to 3A, featuring 14 interchangeable tips and a polarity converter for broad device compatibility. Its precision voltage control with LCD readout ensures safe, accurate power delivery, backed by comprehensive safety protections. Ideal for professionals and DIY enthusiasts needing a reliable, versatile AC/DC adapter for diverse electronics.

Specifications

ASIN	B08BL4QMGM
Amperage	3 Amps
Best Sellers Rank	#10,274 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Power Converters
Brand	SHNITPWR
Built-In Media	1x 72W Universal Power Supply Adapter, 14x DC Tips, 1x Reverse polarity converter cable
Color	Black
Connector Type Used on Cable	Micro USB, USB
Customer Reviews	4.4 4.4 out of 5 stars (3,142)
Enclosure Material	Metal, Plastic
Form Factor	Wall-mounted, not portable
Input Voltage	240 Volts
Item Weight	300 Grams
Manufacturer	SHNITPWR
Maximum Power	72 Watts
Mfr Part Number	eggreh-001
Model Number	SNT-0324-72
Output Current	3 Amps
Output Voltage	24 Volts
Output Wattage	72 Watts
Specification Met	CCC, CE, FCC, RoHS
UPC	619191115082 619191115303
Unit Count	1.0 Count
Warranty Description	1 year

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€ 48.75

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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