Power Management Deals

Handy for electronics hobbyists or anyone working on DIY projects that require converting a lower DC voltage to a higher one, such as powering a 12V device from a smaller battery source. The digital display lets you dial in your output voltage without guessing. Buy Now at Newegg

Useful if you're powering LED strip systems, 3D printers, or other 12V electronics that need a reliable, higher-amperage supply rather than a small wall adapter. Buy Now at Newegg

A 350W inverter at this wattage handles small appliances and device charging from a 12V car outlet, making it a reasonable option for road trips or keeping gear powered during outages. At $72, it's about $8 off the $80 list price. Buy Now at Walmart

Designed for powering laptops or devices from a vehicle's DC power source, this adapter suits anyone who works on the road and needs a reliable way to run equipment without relying on AC outlets. Buy Now at Newegg

Rated at 8,000W, this inverter is built for running high-draw appliances or tools off a 12V battery, which makes it useful for job sites, RVs, or emergency backup situations. At $81, that's $15 off the $96 list price. Buy Now at Walmart

A compact jump starter rated at 5,000A peak current handles most passenger vehicles, trucks, and SUVs, and is worth keeping in your car or garage if you've ever been stranded with a dead battery. At $42, it's essentially at its list price. Buy Now at Walmart

Combines a jump starter and tire inflator in one unit, which makes it a practical grab for anyone who wants roadside emergency coverage without carrying two separate devices. Buy Now at Walmart

Combines a jump starter and tire inflator in one unit, which makes it a practical grab for anyone who wants roadside emergency coverage without carrying two separate devices. Buy Now at Walmart

Rated at 6,000A peak current, this jump starter is built for larger vehicles and can handle trucks, SUVs, and diesel engines that lower-rated units struggle with. At $72, it's $8 off the $80 list price. Buy Now at Walmart

Rated at 5,000 amps peak, this jump starter is overkill for most passenger cars but well-suited if you're working with diesel trucks, large SUVs, or just want serious headroom for cold-weather starts. At $50, it's $40 off the $90 list price. Buy Now at Walmart

Handles gas engines up to 10L and diesel up to 8L, so it covers most passenger vehicles and light trucks, and at $52 it's roughly half the $100 list price. Buy Now at Walmart

Handles both jump starting and tire inflation in one unit, which cuts down on the gear you need to keep in your trunk, and at $63 it's $47 off the $110 list price. Buy Now at Walmart

Update: The price has changed to $39.99 since this was originally published.

A compact option for frequent travelers who want a single charger that works in multiple countries and can handle up to 70W of GaN charging output across devices simultaneously. At $40, that's $10 off the $50 list price. Buy Now at Amazon

Useful if you're building or modifying a power supply system and need to step up DC voltage to a higher level — the 30A output capacity makes it suitable for heavier loads like motors, audio amplifiers, or battery charging setups. Buy Now at Newegg

Handy for electronics hobbyists or anyone building custom power supplies, this module lets you take a higher DC voltage input and dial it down to whatever output level your project needs. Buy Now at Newegg

Rated at 3,000A peak current, this jump starter handles most gas and diesel engines and doubles as a USB power bank for charging devices on the road. At $38, that's $12 off the $50 list price. Buy Now at Amazon

Anyone who's misplaced the original charger for a 19V laptop or monitor can grab this as a reliable replacement without paying brand-name prices. Buy Now at Newegg

Handy for anyone building solar setups or battery projects where input voltage swings above and below your target output, since it adjusts automatically instead of requiring separate boost and buck circuits. Buy Now at Newegg

Converts 12V DC battery power to standard AC power, making it a practical buy for van builds, off-grid setups, or running home appliances during an outage. At $286, that's about $94 off the $380 list price. Buy Now at Walmart