Deals on Discount Batteries

As part of Home Depot's Labor Day Sale, this Ryobi 2.0Ah battery is free with a number of different power tools. You can choose to bundle it with a charger, ratchet or screwdriver kits, or other tools, which start as low as $40. The battery works with the Ryobi USB Lithium system and can also charge mobile devices, with a built-in LED fuel gauge to track remaining power. Shipping is free and the deal ends on September 9. Shop Now at Home Depot

This Milwaukee M12 5.0Ah battery pack comes free with the purchase of a selection of different M12 cordless tools right now at Home Depot. It's worth $129 and can be bundled with a Milwaukee power tool that costs as little as $199. Shipping is free on all bundles. This battery delivers 25% more power, runs 25% cooler, and offers 25% more runtime than standard Milwaukee battery packs, and it works across more than 125 M12 cordless tools. The deal ends on September 9. Shop Now at Home Depot

Amazon's Subscribe & Save promotion covers a wide range of household batteries from Energizer and Rayovac, including everyday AA and AAA packs as well as specialty hearing aid and lithium coin batteries. Shop Now at Amazon

Today only, this SmallRig VB99 Mini V-Mount Battery is $110 at B&H Photo Video. That's $140 off original list, $100 under our mention from two weeks ago, and the lowest price we've seen. It  supports up to a 14A draw and includes D-Tap, USB-C, USB-A, and dual barrel outputs for powering cameras, gimbals, and drones. It can fast charge via USB-C PD in under two hours and has a built-in OLED display for checking remaining capacity. Free shipping applies.  Buy Now at B&H Photo Video

This 48-pack of Great Value AAA batteries is $12.88 at Walmart, down from $15, working out to about 27 cents per battery. It's cheaper than any similar 48-pack at Amazon or Woot. A 10-year shelf life is rated for storage. Buy Now at Walmart

At Amazon, get the Energizer Alkaline Power AAA Batteries 20-Pack for $11 when you check out with Subscribe & Save. It's the best deal we've seen for this multipack. Shipping is free for Prime members. Buy Now at Amazon

At Home Depot, this RYOBI ONE+ 18V / 40V Starter Kit is $89, down from $307. It includes an 18V 2Ah battery, a 40V 2Ah battery, and a dual platform Hyper Charger that can charge either battery in 25 minutes. Both batteries work with any RYOBI ONE+ or 40V tool. Home Depot also offers free shipping on this bundle. Buy Now at Home Depot

This ECO-Worthy 12V 100Ah LiFePO4 battery drops to $134 when you apply promo code "MYUSAFF12" at AliExpress. That's within a couple bucks of the price we saw around Black Friday. It ships from the United States with free shipping and a rated capacity of 1,280Wh, Bluetooth connectivity, and low-temperature protection. Buy Now at AliExpress

Amazon's Subscribe & Save promotion knocks 40% off a first subscription order on more than 200 qualifying battery items. The discount spans brands like Energizer, Rayovac, and Eveready, covering everything from AA and AAA batteries to specialty hearing aid and coin cell batteries. Shop Now at Amazon

At Lowe's this Kobalt 24-volt battery and charger kit is $99. That's $60 off, $29 under Amazon. and the lowest price we could find. It includes two 4.0Ah batteries and one charger for Kobalt 24-volt power tools.  Free shipping applies.  Buy Now at Lowe's

At Amazon, clip the on-page coupon to get this 12V 6A Auto Battery Charger for $11. It's the best deal we've seen for this model. Shipping is free for Prime members. Buy Now at Amazon

This Milwaukee M12 RedLithium High Output 5.0Ah XC5.0 Battery Pack, which is compatible with more than 125 M12 cordless tools, is $63 less than Home Depot charges. It comes with a 3-year manufacturer warranty and ships free. Buy Now at eBay

A 3-in-1 stand that charges your iPhone, Apple Watch, and AirPods simultaneously from a single pad is a practical way to consolidate your nightly charging routine. Apply coupon code "2FLAE42Z" for a total savings of $18. Buy Now at Amazon

Amazon offers this Greenworks battery 2-pack with charger for $105. That's a 34% savings. Shipping is free.  Buy Now at Amazon

SmallRig's NP-F970-style battery is a go-to for videographers running monitors, LED lights, or other NP-F-powered accessories on longer shoots, where capacity matters more than keeping the kit light. At $60, it's $20 off the $80 list price. Buy Now at Amazon

A compact 35W USB-C wall charger that works for phones, tablets, and most laptops that charge over USB-C, at its standard $20 retail price with no discount currently applied. Buy Now at Best Buy

A straightforward replacement adapter for anyone whose Ever Glow DDU120120 power supply has failed or gone missing, saving you from tracking down an OEM part. Buy Now at Newegg

Useful if you need a replacement or spare 24V power adapter and want one that matches the specs without buying directly from the original manufacturer. Buy Now at Newegg

A straightforward pick if you have a Kawasaki portable DVD player and need a replacement power adapter without tracking down an OEM part. Buy Now at Newegg