Will this effectively charge a portable car battery charger?

It all depends on what ratings on the car battery are. Once you have volts & amps then match with incoming volts & amps on electrical source. Good luck.

Is there a usb version? if the cable connected to the transformer via usb, it would be more helpful to me.

Sorry my friend that information can only come from the manufacturer. Perhaps check a search engine you might get lucky. Good luck..

Will this work to power a toshiba canvio 3tb external drive hdwc130ek3j1?

If I’m right check on the Toshiba canvio. Where you plug in the dc cord it should tell you the products voltage requirement.

Does it have over charge protection?

Sorry for the wait but no it does not have overcharge protect. Sorry

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AC Adapter 9V 2A Power Supply AC110V to DC9V 2000mA 1500mA 1000mA 500mA Power Driver 8 DC Plug Tips 9 Volt Converter Inverter Charger Transformer ac dc Adapter

Product ID: 217339434

Details

Amperage
2 A
Brand
GuanTing
Color
2A
Compatible Phone Models
Universally DC
Connector Type
DC Barrel
Included Components
8 DC plug tips

⚡9V output, up to 2A power

🔌8 interchangeable DC plug tips

🛡️Multi-layer safety protections

€ 21.36

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power up your tech life with confidence and style!

ROCK SOLID SAFETY - Built-in overvoltage, overcurrent, short circuit, and surge protection for worry-free operation.
PLUG PLAY VERSATILITY - Includes 8 DC plug tips to seamlessly fit a wide range of gadgets from tablets to security cameras.
SILENT DURABLE DESIGN - Fireproof shell with superior heat dissipation ensures quiet, long-lasting performance without fan noise.
UNIVERSAL 9 V POWER BOOST - Delivers a stable 9V output with up to 2A current, powering your devices without compromise.
CERTIFIED QUALITY ASSURANCE - CE, FCC, and DoE VI certified with rigorous pre-shipment testing for guaranteed reliability.

This AC Adapter converts AC110V to a reliable DC 9V output at up to 2A, featuring 8 interchangeable DC plug tips for broad device compatibility. Engineered with advanced safety protections and a fireproof, heat-dissipating shell, it ensures silent, durable performance. Certified by CE, FCC, and DoE VI standards, it’s the perfect power solution for professionals seeking dependable, versatile charging for their essential electronics.

Specifications

ASIN	B087ZWS7CG
Amperage	2 A
Best Sellers Rank	#13,658 in Automotive ( See Top 100 in Automotive ) #36 in Power Inverters
Brand	GuanTing
Built-In Media	8 DC plug tips
Color	2A
Compatible Devices	Android Tablets, Webcam, Routers, Toys, Recorder, Bluetooth Speaker, Arduino UNO MEGA, radio, security cameras, CD Player etc.
Compatible Phone Models	Universally compatible with most Android phones using DC 9V power supply
Compatible Power Plug Type	Type A - 2 pin (North American)
Connectivity Technology	Easy plug and play
Connector Type	DC Barrel Connector
Current	AC
Current Rating	2 A
Customer Package Type	Standard Packaging
Customer Reviews	4.5 4.5 out of 5 stars (1,428)
Enclosure Material	Acrylonitrile Butadiene Styrene
Form Factor	Compact, portable design with interchangeable DC plug tips
Frequency Range	50-60hz
Input Voltage	120 volts
Item Weight	0.1 kg
Main Power Connector Type	2 Pin
Manufacturer	GuanTing
Mfr Part Number	GT-0902000
Model Number	GT-0902000
Mounting Type	Wall Mount
Number of Items	1
Number of Power Levels	1
Output Current	2 A
Output Voltage	9 volts
Power Plug	Type A - 2 pin (North American)
Power Source	Corded Electric
Special Features	Charging Indicator, Short Circuit Protection
Unit Count	1 Count
Voltage	9 volts
Wattage	18 watts

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