Power Management Deals

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

At Amazon, get the Ecarke 220W Portable Power Inverter for Milwaukee 18V Battery for $22.49 when you clip the coupon on the product page. It's the best price Amazon has charged for this model. This compact inverter weighs under 1 lb and converts Milwaukee 18V battery power to 110V AC, with one AC outlet, two USB-A ports, and a 20W USB-C port for charging multiple devices at once. A built-in 200-lumen LED work light with three brightness levels and an SOS strobe mode adds utility for job sites or emergencies. Buy Now at Amazon

Amazon offers the Ecarke 200W Portable Power Inverter for $21. That's $9 less than what it's typically listed at. Shipping is free for Prime members. Buy Now at Amazon

Avapow's combo unit handles both dead batteries and tire inflation, which makes it a practical trunk item for anyone who wants one tool covering two roadside scenarios. At $46, it's $44 off the $90 list price. Buy Now at Walmart

Utrai bundles a 4,000-amp jump starter with a 150-PSI air compressor into one unit, which makes it a practical keep-in-the-trunk tool if you want to handle a dead battery or low tires without needing a second device. At $53, it's $47 off the $100 list price. Buy Now at Walmart

Useful for electronics hobbyists and DIY builders who need to convert a lower-voltage source, like two AA batteries, into a stable 5V output to power microcontrollers, sensors, or other USB-standard components. Buy Now at Newegg

Useful for anyone running 12V accessories in a vehicle or system that operates on a higher voltage, as it steps down the input to a stable 15A output without the energy loss you'd get from a resistor-based solution. Buy Now at Newegg

A variable voltage transformer lets you manually adjust AC output from 0 to 130V, which is useful for testing electronics, running equipment rated for different voltages, or gradually powering up older gear. The 2,000VA rating gives you enough capacity to handle most bench work or small appliances without tripping the unit. Buy Now at Newegg

Useful for electronics hobbyists, students, or anyone who needs a stable DC power source for testing circuits, powering small projects, or running 12V accessories on a bench without relying on batteries. Buy Now at Newegg

Useful for anyone doing custom electronics projects or vehicle installs who needs to pull clean 5V USB power from a higher-voltage source like a car battery or DC power supply. Buy Now at Newegg

A variable voltage transformer lets you manually dial in the exact voltage output you need, which makes it useful for testing electronics, running older equipment with different voltage requirements, or any work where fixed outlet voltage isn't sufficient. At 2000VA, it has enough capacity to handle larger loads than most bench-top units. Buy Now at Newegg

A practical buy if your Apple TV has died due to a power issue and you'd rather repair it than replace the whole unit — this board targets a common failure point in older Apple TV models. Buy Now at Newegg

Useful if you're running sensitive electronics like medical equipment, audio gear, or anything with a motor off a 12V battery, since pure sine wave output won't cause the interference or damage that modified sine wave inverters sometimes do. Buy Now at Newegg

Handy for electronics hobbyists and DIY builders who need to drop voltage from a higher source down to a stable 5V, which suits powering microcontrollers, Raspberry Pi boards, or other low-voltage components in a custom circuit. Buy Now at Newegg

Useful for frequent international travelers who need a single adapter that works across multiple regions, rather than carrying a country-specific plug for each destination. Buy Now at Newegg

Handy for electronics hobbyists or anyone building a bench setup who needs to power multiple circuits at different voltages from a single source — the LM2596 chipset is a well-regarded buck converter, so you're getting reliable step-down regulation without building the circuitry yourself. Buy Now at Newegg

Useful for anyone running 12V car accessories or CB radios from a standard wall outlet, since it converts household AC power to the 12V DC that most automotive electronics require. Buy Now at Newegg

Handy for DIY electronics projects where you need to power a 12V component directly from a standard AC outlet without a bulky external adapter. Buy Now at Newegg