Power Management Deals

This Ecarke power inverter is $22 off its regular price of $117 at Amazon, and it matches the lowest price the item has seen. It runs on DeWalt 20V batteries, which aren't included, and outputs pure sine wave power meant to safely charge sensitive electronics like laptops and phones. Free shipping applies.  Buy Now at Amazon

At Amazon, get the Bestek 2000W Pure Sine Wave Power Inverter for $112. It's the best price we could find by $61. It includes a pure sine wave output, 3 AC outlets, a USB-C port, and a wired remote control for added convenience. Buy Now at Amazon

Use promo code "29USAFFSS" to drop the price. That's a total savings of more than $300. This Renogy 2000W pure sine wave inverter is $196 off its regular price of $482.  Buy Now at AliExpress

Fiber technicians who need a reliable backup power source for their Noyes Turbotest 500 will find this a straightforward way to keep testing without relying solely on battery power, and Newegg carries it if your original adapter goes missing or fails. Buy Now at Newegg

Anyone setting up or expanding an outdoor landscape lighting system will want a transformer with reliable output, and this Kichler 15V model handles that job while running $20 below its usual $210 list price. Buy Now at Amazon

Frequent flyers juggling multiple devices across different countries will get the most use out of this one, since 170W is enough to charge a laptop and several smaller gadgets at once through the same outlet. At $66.49, that's $33.50 (about 34%) off the $99.99 list price. Buy Now at Amazon

Handy for road trips or emergency kits where you need to run small electronics off your car battery, and at $31.19 it's $4.80 below the $35.99 list price. Buy Now at Amazon

Handy for anyone running Milwaukee 18V tools or accessories off standard wall power instead of burning through batteries, and Amazon has it for $45, about $8 off the $53 list price. Buy Now at Amazon

Handy for frequent travelers juggling multiple devices, since it handles 140W of combined output across different plug types without needing separate adapters; the current discount is minimal, just $2 off the $90 list price. Buy Now at Amazon

Small electronics projects that only need a low-current 12V output work well with this module, converting standard AC mains directly down without a bulky external adapter taking up space in your enclosure. Buy Now at Newegg

Anyone with an older Samsung SyncMaster monitor whose original power brick died or went missing can grab this as a direct replacement without hunting for a discontinued part. Buy Now at Newegg

Anyone replacing a lost or fried power brick for a 18V device will want to double-check their equipment's voltage and amperage rating before buying, since this adapter is built to match that exact 18V, 2.5A spec rather than serve as a universal fit. Buy Now at Newegg

Anyone tinkering with electronics projects that need to drop voltage from a battery or power supply will want a couple of these on hand, since having two on hand means you can run separate components at different voltages without buying more later. Buy Now at Newegg

Handy for anyone replacing a worn-out power brick for LED strips, security cameras, or small electronics that call for a steady 12V 1.5A output, and Newegg's price makes it an easy swap without hunting down the original manufacturer's part. Buy Now at Newegg

Handy for road trips or job sites where you need to run larger tools or electronics off your vehicle's battery, and Best Buy has it for $12 off the list price. Buy Now at Best Buy

For anyone building or repairing 48V equipment, this power supply delivers a stable 3A output without the higher cost of industrial-grade units, making it a solid fit for DIY electronics or embedded systems projects. Buy Now at Newegg

Powers DIY electronics projects, portable tools, or bench testing straight from a Dewalt 20V battery you already own, converting it to a usable adjustable voltage range instead of buying a separate power supply. It's $7.96 off the $52.99 list price at Amazon. Buy Now at Amazon

Anyone running an older Drobo 5D and dealing with a lost or failed power brick can swap this in without hunting down the original manufacturer's part, and Newegg carries it if you want a straightforward replacement. Buy Now at Newegg

Handy for anyone building or repairing electronics that need a stable stepped-down voltage, like powering microcontrollers or accessories from a car battery or higher-voltage supply without frying the circuit. Buy Now at Newegg