Power Management Deals

This power adapter is built specifically for Xreal Air AR glasses, so it's a straightforward pick if you already own the headset and need a dedicated charging solution rather than hunting for a compatible generic one. It's currently priced at its $40 list, so there's no discount factored in right now. Buy Now at Best Buy

Handles both dead batteries and flat tires from a single portable unit, which makes it useful for anyone who wants roadside self-sufficiency without carrying two separate devices. At $171, that's about $29 off the $200 list price. Buy Now at Walmart

Anyone with a squeaky or slow-moving power lift chair or recliner can use this as a direct replacement transformer to get it back to running smoothly, since it's built to the 29V 2A spec most units call for. Buy Now at Walmart

Anyone building or repairing precision instrumentation that needs a stable high-voltage rail will find this handy for converting a standard 12V input into a regulated 2kV output without a separate bulky power supply. It suits engineers working on sensor calibration, photomultiplier tubes, or other applications where low current, high voltage DC is required. Buy Now at Newegg

Anyone juggling multiple gadgets across countries will appreciate having nine ports and 205W of GaN charging in one compact adapter instead of packing separate converters, and Amazon has it $47 off the list price. Buy Now at Amazon

The GCZ jump starter delivers 2,000 amps of peak current, which is enough to start most gas engines and diesel trucks, and at $40 it's $49 off the $89 list price. Buy Now at Walmart

Handy for DIY solar setups where you're combining panels or battery banks, since it stops current from flowing backward and potentially damaging your components. Buy Now at Newegg

Designed for use in vehicles or mobile setups where you need to power a laptop or device from a 12V/24V DC source rather than a wall outlet, this adapter converts DC power directly without needing an inverter, which keeps things simpler and more efficient on the road. Buy Now at Newegg

Handy for running sensitive electronics off a battery bank during outages or in a van build, since the pure sine wave output won't damage laptops or medical equipment the way modified sine wave inverters can, and it's currently $28 off the list price. Buy Now at Amazon

Anyone setting up low-voltage LED strips or landscape lighting needs a reliable driver like this, and 60W gives you enough headroom to run longer runs without flickering or dimming issues. Buy Now at Newegg

Anyone who's misplaced the original charger for their Sony TV or monitor can grab this as a direct replacement without hunting down discontinued OEM parts. Buy Now at Newegg

Anyone whose MelodySusie nail dust collector's original power supply died can swap in this adapter without hunting down a discontinued part, since it's built to match the same voltage and output specs. Buy Now at Newegg

A compact step-up converter module that lets you take a lower DC input voltage and boost it to a higher output, useful for DIY electronics projects, bench power supply setups, or anyone who needs adjustable voltage regulation without building a circuit from scratch. Buy Now at Newegg

Handy if you've misplaced the charger for a small electronic and just need a reliable 5V 2A replacement without hunting down the original brand. Newegg carries this Ablegrid adapter for those routine swaps where any compatible plug will do the job. Buy Now at Newegg

Anyone who's lost the original power brick for a high-wattage laptop or all-in-one desktop can use this as a direct replacement without paying original-manufacturer prices, and Newegg's spec list makes it easy to check compatibility before buying. Buy Now at Newegg

Update: The price has changed to $26.99 since this was originally published.

A car power inverter converts your vehicle's 12V outlet into a standard AC plug, letting you run small electronics or charge devices on the road. At $25, that's $2 off the list price. Buy Now at Amazon

Anyone rewiring an AC motor for DC control setups will find this rectifier module handy for converting current cleanly without building a circuit from scratch, and Newegg has it if you need one on hand. Buy Now at Newegg

Frequent international travelers who juggle multiple devices will get the most out of the 170W output, which can handle laptops alongside phones through the built-in USB-C and USB-A ports; it's $33.50 off the list price at Amazon. Buy Now at Amazon

Useful for travelers heading to the U.S. from countries with 220V power grids, or Americans bringing 110V appliances abroad who need to run higher-wattage devices like hair dryers or curling irons without frying them. Buy Now at Walmart