The Best Dc 3V Adapter Radio Shack – 2022

After hours of researching and comparing all models on the market, we find out the Best Dc 3V Adapter Radio Shack of 2022. Check our ranking below.

Our Picks For The Top Dc 3V Adapter Radio Shack

Overall Product Rankings

Rank No. 1
3-12-Volt/2500mA High-Power AC - DC Adapter
11 Reviews
3-12-Volt/2500mA High-Power AC - DC Adapter
  • Switching DC Power: 3, 5, 6, 7.5, 9, 12 Volts
  • 2.5A Power output through all settings.
  • Buit in short circuit protection.
  • Requires Adaptaplug connectors (sold separately) to use with this AC adapter.
Rank No. 2
3vdc -12 volt Universal AC/DC Power Adapter USB Port | 8 Reversible Polarity Positive or Negative Tips Center Tip 3v 4.5v 5v 6v 7.5v 9v 12v 1a 12w Transformer 5.5mm 2.5mm 2.1mm 3.5mm 4.0mm 5.0mm 1.7mm
268 Reviews
3vdc -12 volt Universal AC/DC Power Adapter USB Port | 8 Reversible Polarity Positive or Negative Tips Center Tip 3v 4.5v 5v 6v 7.5v 9v 12v 1a 12w Transformer 5.5mm 2.5mm 2.1mm 3.5mm 4.0mm 5.0mm 1.7mm
  • Multi-Voltage 12 Watt (12w/1-amp) replacement switching power adapter supply compatible with 1000s of small electronic devices using requiring 3 volt, 4.5 volt, 5 volt, 6 volt, 9 volt, or 12 volt up to 1.0a or 12 watts including many Electronics, Tablets, Routers, Smart Phones, Speakers, Monitors, TVs, LCDs, Cameras & Other USB Port Charging up to 12watt 1000ma with US 120 volt Plug
  • Includes 8 Interchangeable DC Tips/Plugs of the most popular sizes: 5.5mm x 2.5mm / 5.5mm x 2.1mm / 5.0mm x 2.1mm / 3.5mm x 1.35mm / 4.0mm x 1.7mm/ 2.5mm / 3.5mm / 2.5mm x 0.7mm. Please make sure your device is one of these size jacks on it for proper fit and the standard center positive polarity. New Upgraded model comes with a USB port built in
  • NEW model now has REVERSIBLE DC Tip Polarization - Both Center/Inside/Middle Tip Positive (+) Outer/Outside Tip Negative (-) and Inside/Center Negative (-) Outer/Outside Positive (+) Can be Set by Removing Tip and Placing it in Opposite Position. This allows for maximum device compatibility as it can be set to operate in both center tip pos and center tip neg polarities. Please be sure to verify your device polarity, tip size and voltage before purchasing.
  • Voltage is easy to change by the switch on the side of the adapter. Be sure you're using the correct VOLTAGE & POLARITY for your device before plugging it in. If you are not sure please use the "Customer Questions & Answers" section below before purchasing and provide your product brand, model, and part number if available and we will try to help verify your device's power requirements.
  • UL Listed & ROHS Compliant | Input: 110v - 220v AC / Output: 3v - 12v DC - Maximum Current from DC tip is up to 2.5a or 30 watts (USB Port Limit is 1.0amps) - If your device requires less power, such as 200ma, 300ma, 400ma, 500ma, 600ma, 750ma or any other up to 2500ma through the DC barrel connectors it will work with this adapter with a matching tip and proper voltage/polarization
Rank No. 3
Duracell - 2032 3V Lithium Coin Battery - with Bitter Coating - 1 Count
17,226 Reviews
Duracell - 2032 3V Lithium Coin Battery - with Bitter Coating - 1 Count
  • BITTER TASTE DISCOURAGES SWALLOWING: Non-toxic, bitter coating helps prevent accidental ingestion
  • CHILD SECURE PACKAGING: Nearly impossible to open without scissors
  • LONG-LASTING POWER: Reliable and efficient power for devices like key fobs, remote controls, thermometers, and many others
  • GUARANTEED 10 YEARS IN STORAGE
Rank No. 4
GZSZSBT 30W Universal AC/DC Adapter Multi-Voltage Regulated Switching Power Supply, with 8 Optional Adapter Plugs, Suitable for 3V to 12V Household Electronic Products and LED Strip, 2A Max
  • [Note]: The polarity of the 30W adapter DC plug is the positive "+" in the center. Before buying, make sure it is the same as your device. If the negative pole of the center of your device is "-", please use a cable with the opposite polarity.
  • [Universal AC/DC Adapter]: AC input: 110-240V, 50-60Hz, DC output: 3V/4.5V/5V/6V/7.5V/9V/12V-MAX 2A (2000 mA). This replacement power adapter provides 8 interchangeable adapter plugs of different sizes, comprehensive protection against over-voltage/over-current/short-circuit/over-temperature, which is very suitable for your electronic products and solves your various problems.
  • [8-in-1 adapter]: GZSZSBT 30w replacement AC adapter is suitable for 95% of AC/DC home appliances, such as 3V to 12V home electronics, tablets, scales, routers, speakers, LED strips, CCTV camera systems , USB rechargeable camera, etc.
  • [Powerful adapter]: Variable voltage is easy for you to choose, you can use the provided keys to easily convert to different voltages. 5.5mm*2.1mm DC power cord connector plug, convenient and practical to connect. Support DC 12V-2A or 12V-1.5A electrical appliances.
  • [Product includes]: 1 x power adapter, 1 x DC plug kit, 1 x switch key, 1 x manual, 1 x 12 months global warranty. 30W multifunctional adjustable charger, you can choose different sizes of output and different voltage levels. It is safe to operate, easy to set the correct voltage, and easy to connect the adapter plug.
Rank No. 5
3V 1A 0.8A 0.5A Charger AC Adapter Multi Jacks Universal 3 Volt Switching Adaptor Regulated DC 3.0V 1.0A 0.6A 1000mA 800mA 500mA 300mA Power Supply Transformer Plug 6FT Long Cord UL Listed
  • UL LISTED 3V 1A 0.8A Power Cord, Energy Efficiency VI, Regulated 3.0V Power Adapter Tested & Approved and Certified by UL, Replacement Power adapter build in short circuit/Over current/Over voltage/Over temperature protection, Safe charging for your 3V 1A input devices
  • 3 Volt 1A 0.8A 0.5A Switching Power Supply, DC 3W Max, Power supply works for various of devices which ask for a less than 3.0V 1A 3.0W power adaptor, Such as 3V 1000mA, 900mA, 850mA, 800mA, 700mA, 650mA, 600mA, 500mA, 450mA, 400mA, 300mA, 200mA, 100mA, 1A, 0.9A, 0.8A, 0.7A, 0.6A, 0.5A, 0.4A, 0.3A, 0.2A, 0.1A transformer charger
  • DC Polarity: Inner Positive(+), Outter Negative(-), Input AC 100-240V - 50/60Hz, Worldwide input voltage range, US standand wall plug, 6FT/1.8M extra long enough power cord
  • Interchangeable Multi Jacks - Selected 10pcs various popular connectors which can be used for most of your 3V DC devices, DC Jack Dimensions: 6.3*3.0, 5.5*2.1, 5.5*2.5, 4.8*1.7, 4.0*1.7, 3.5*1.35, 3.0*1.1, 2.5*0.7, 6.0*4.4 with pin inside, 5.0*1.0 with pin inside, DIY connector, ⚠️Please DOUBLE CONFIRM the DC jack dimensions to ensure the compatibility
  • What You Get: 1 x 3V 1A max AC/DC class 2 universal power adapter, 10 x Interchangeable DC jacks, 30 days refund, 12 months exchange, ⚠️ Please DOUBLE CONFIRM the DC jack dimensions to ensure the compatibility
SaleRank No. 6
SHNITPWR 30W Universal Power Supply 3V 4.5V 5V 6V 7.5V 9V 12V Adjustable Variable AC/DC Adapter with 5V 2.1A USB Port, 100V-240V AC to DC 3V~12V Converter 0.5A 1A 1.2A 1.5A 2A 2.5A Max with 14 Tips
  • Input: AC 100~240V, 50/60Hz; Output: DC 3V 4.5V 5V 6V 7.5V 9V 12V adjustable, Max 2.5A 30W; It can supply with any amp less than 2.5A, such as 300mA 500mA 800mA 1A 1.2A 1.5A 1.8A 2A 2.1A 2.2A 2.4A 2.5A. Equipped with a 5V 2.1A USB port at the bottom, you can connect any standard USB cable to it. (USB cable not included).
  • It comes with an original 5.5x2.5mm tip (inside"+", outside"-") and 14pcs frequently used tips: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C and DC terminal connector. We especially add a reverse polarity converter, which will double its application scope.
  • The 30W all-in-one multipurpose AC/DC adapter fit for many 3~12V under 30W small electronics such as LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, Wifi IP camera, USB Hub, hard disk box, CD Player, DVD Player, DC motor, DC pump, digital photo frame, DVR NVR surveillance system etc.
  • Built-in multiple safety protection systems. Automatic over voltage cut-off, over current cut-off, over temperature cut-off, short circuit cut-off. We focus on producing premium quality and safety power adapters. No noise, no spontaneous combustion, no explosion, no fire hazard, safe to use. 6ft long power cable makes it convenient to use.
  • Please choose correct voltage before plug it to your device. Wrong voltage may damage your device. We recommend to use less than 80% of the full load. We always stand behind our products. If there is any issue, please feel free to contact us. We have 30 days money back guarantee, 24 months exchange.
Rank No. 7
POWSEED 3V 4.5V 5V 6V 7.5V 9V 12V Universal AC Adapter 12W AC/DC Power Adapter for Household Elecronics Pedals Routers Speakers CCTV Cameras Smart Phone USB Hub GPS Tablet Recorder etc.
100 Reviews
POWSEED 3V 4.5V 5V 6V 7.5V 9V 12V Universal AC Adapter 12W AC/DC Power Adapter for Household Elecronics Pedals Routers Speakers CCTV Cameras Smart Phone USB Hub GPS Tablet Recorder etc.
  • POWSEED 3V 4.5V 5V 6V 7.5V 9V 12V AC Adapter 12W Universal AC/DC Power Adapter for many kinds of small household electronics, like Router, Speaker, CCTV camera system, LED strips, webcam, pulse performance scooter and more devices. Especially added a micro USB plug and a mini USB, they will give much convenience for powering most smart phones and tablets.
  • Input:110-240V, Output: 3V, 4.5V, 5V, 6V, 7.5V, 9V, 12V, Max 12W 2A. Total 9 different DC Power Plugs: Micro USB, MINI USB; 3.0x1.1mm; 2.5x0.7mm; 3.5x1.35mm; 4.0x1.7mm; 4.8x1.7mm; 5.5x2.5mm. This power adapter meet your indoor power needs for lots of small digital devices at home. With these DC plugs and different voltage outputs, saving you a lot to buy various power supply..
  • [IMPORTANT] DC Plug Polarity: inner Positive(+), outer Negative(-). Some musical device requires inner Negative and outer positive (totally opposite), please check carefully before buying
  • [Choose Correct Voltage before Powering] It is important to choose the right voltage before powering your device. If your device use Alkaline battery AA or AAA , then each piece is 1.5V, 2 piece choose 3V, 3 piece choose 4.5V, 4 piece choose 6V, etc
  • Package include: 1 x 12W Power cord Charger adapter, 8 x Plugs, 1 x Iron Sheet
Rank No. 8
SoulBay 12W Universal AC Adapter Reversible Polarity Multi Voltage DC Power Supply, with 9pcs Adaptor Tips, Compatible with 3V to 12V Household Electronics, 1.2Amp Output
  • WHAT IS Reverse Polarity: Most adapters only have single polarity, positive (+) or negative (-) polarity. This SoulBay AC Adapter owns Dual Polarity, reversible and changeable.
  • Versatile POWER SUPPLY: straightforward adjustment for All-in-one multi adapters and multi amp devices, solid and well built. Voltage range, connector jacks and polarity are Selectable.
  • WIDE APPLICATIONS: for router, speaker, monitor, camera, smartphone, led strip, piano, keyboard, effect pedal board, and a variety of household electronics require 3 volt, 4.5 volt, 5 volt, 6 volt, 7.5 volt, 9 volt, 12 volt DC output with 1200ma load.
  • SAVES ON ADAPTERS: Own this adapter, you could use it for multiple devices and replace a lot old power adapters, saving on buying a new electronic device or extra original expensive power supply.
  • PACKAGE INCLUDES: 1 x 3-12V multi-voltage ac adapter, 9 x changeable adapter tips, 1 x key. Each adapter tip has the clear dimension mark, no mess and convenient for you! (Note: Not compatible with some Sensitive Electronics, such as AM/FM Radio. )
Rank No. 9
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
  • Input: AC 100~240V, 50/60Hz ; Output: DC 3~24V Adjustable, Max 3A 72W ; It can supply with any voltage between 3~24V,such as 3V 4V 4.5V 5V 5.5V 6V 9V 12V 14V 15V 19V 20V 24V, etc and any amp less than 3A, such as 300mA, 500mA,1A, 1.5A, 2A, 2.5A, 3A. LCD display will show the output voltage, in case that wrong voltage regulation damage your device.
  • It comes with an original 5.5x2.5mm tip and 14pcs frequently used tips: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C and DC terminal connector. You can screw wires onto it easily, perfect for DIY projects.
  • The 72W all-in-one multipurpose AC/DC adapter fit for many 3~24V small household electronics such as LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, Wifi camera, USB Hub, hard disk box, DC motor, DC pump, digital photo frame, DVR NVR surveillance system etc.
  • Built-in multiple safety protection systems. Automatic over voltage cut-off, over current cut-off, over temperature cut-off, short circuit cut-off. We focus on producing premium quality and safety power adapters. No noise, no spontaneous combustion, no explosion, no fire hazard, safe to use. 6ft long power cable makes it convenient to use.
  • Please choose correct voltage before plug it to your device. Wrong voltage may damage your device. We recommend to use less than 80% of the full load. We always stand behind our products. If there is any issue, please feel free to contact us. We have 30 days money back guarantee, 24 months exchange.
SaleRank No. 10
Basicvolt 18W Universal Power Supply 3V 4.5V 5V 6V 7.5V 9V 12V AC to DC Power Adapter 1A 1.5A for LED Strip Light Router Speaker CCTV Camera Tablet Mp3 and More Household Electronics
  • Multi-Voltage AC/DC Adapter - AC Input: 100-240V 0.25A 50/60Hz, DC Output: 3V 4.5V 5V 6V 7.5V 9V 12V, 0-1500mA. DC plug output polarity is inner positive (+) and outer negative(-). [Note: if your device is inner negative(-), please take a Basicvolt polarity reverse cable with it.] You can regulate the voltage to 3V 4.5V 5V 6V 7.5V 9V or 12V by the provided small key.
  • Universal AC DC Power Adapter - This ac adapter comes with 11 optional tips, which makes it fits most of AC/DC home appliances, Such as 3/ 4.5/ 5/ 6/ 7.5/ 9/ 12 Volts Household Electronics, LED Strip Lights, Desk Lamps, Scales, Routers, Speakers, CCTV cameras, USB Charging Cameras, Webcams, Baby Monitors, Game Consoles, Tablets and so on.
  • This AC/DC Adapter complies with VI Level Energy Efficiency. Average 90% energy conversion efficiency, friendly to our earth. Made by premium materials(Pure copper tip and stick), manual welding, very durable.) Upgraded structural design, stronger connection, easy to plug in, safe and reliable.
  • Switching Power Supply - Made of Premium Material. Durabe, Reliable, Stable, A good helper for your daily life. Built-in multiple security protection. There’re short-circuit protection, overheating protection, overvoltage protection, overcurrent protection, and surge protection. Don’t hesitate to choose one for you, your families or friends.
  • You will get - 1 X 18W Universal AC Adapter, 11 X DC adapter tips, 1 X user guide, 12-month global worry free warranty.

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