Power Management Deals

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

Dewenwils' 15A Digital Temperature Controller lets you plug in a heating or cooling device and have it automatically switch on or off based on a temperature threshold you set, which suits things like reptile enclosures, fermentation setups, or small greenhouses. At $21, that's about $9 off the $30 list price. Buy Now at Walmart

Handy for electronics projects where you need to power multiple USB devices or microcontrollers from a higher-voltage source, like a 12V battery or solar panel, without needing separate regulators for each one. Buy Now at Newegg

Useful if you travel frequently to Europe and want to avoid the bulk of a standard adapter, since the plating adds a layer of corrosion resistance that basic plug adapters typically skip. Buy Now at Newegg

Useful for travelers or expats who need to run appliances from one country on the electrical system of another, since it adjusts voltage output to match what your device requires. Buy Now at Newegg

Designed for anyone who wants to cut power to a vehicle's battery remotely, whether for security, storage, or preventing parasitic drain, this switch lets you disconnect without opening the hood. At $26, that's $8 off the $33 list price. Buy Now at Walmart

The WolfBox 4,000A jump starter is built for people who want a single device that can handle dead batteries across a wide range of vehicles, from compact cars to large trucks and diesel engines, without needing another car nearby. At $120, that's $58 off the $178 list price. Buy Now at Walmart

Wolfbox 4,000A 160-PSI Jump Starter and Air Compressor for $140, which is $138 (50%) off the $278 list price. The 4,000A peak current handles most gas and diesel engines, and the built-in 160-PSI compressor means you can top off tires without carrying a separate inflator, making this a useful single-unit solution to keep in your vehicle. Buy Now at Walmart

Designed for off-grid setups like cabins, RVs, or backup power systems, this controller manages how solar panels charge your battery bank, and the MPPT technology pulls more usable power from your panels compared to older PWM-style controllers. The 50A rating suits mid-sized systems, typically handling 600 to 800 watts of solar input depending on your battery voltage. Buy Now at Newegg

Plugs into your car's 12V outlet and converts it to a standard 110V AC socket, which is useful for charging laptops, running small appliances, or powering devices that don't have a car adapter on road trips or job sites. At $16, that's $4 off the $20 list price. Buy Now at Walmart

Handy for anyone traveling to Europe who wants to avoid buying adapters at the airport or destination at inflated prices, this covers the standard Type C outlets found across most of the continent. At $17, it's $13 off the $30 list price. Buy Now at Walmart

Handy for electronics hobbyists or anyone building a custom power circuit who needs to step down a voltage source to a specific output level without buying a fixed-voltage regulator for every project. Buy Now at Newegg

Useful if you're running 12V DC equipment, like ham radios, LED strips, or automotive accessories, from a standard wall outlet without needing a battery or inverter setup. Buy Now at Newegg

The Amener 4,000A jump starter bundles a high-output battery booster with a built-in air compressor, making it a two-in-one tool for roadside emergencies whether you're dealing with a dead battery or a flat tire. At $53, that's $107 off the $160 list price, or about 67% off. Buy Now at Walmart

A handy tool for anyone who needs to test electronics, adjust motor speeds, or run equipment that requires a specific voltage input rather than a fixed outlet. Buy Now at Newegg

Handy for anyone building a custom electronics setup who needs to drop a 12V or 24V source down to 5V to power USB devices, microcontrollers, or other low-voltage components without running a separate power supply. Buy Now at Newegg

Handy for anyone traveling from Europe to the US who needs to use European-plugged devices in American outlets, this 2-pack runs $12 right now, which is $8 off the $20 list price. Buy Now at Walmart

Compact jump starters like this one are useful to keep in your trunk for dead batteries without needing another car, and at $34 that's about $32 off the $66 list price. Buy Now at Walmart

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