Deals on Discount Batteries

Useful for anyone who travels with multiple devices and wants to consolidate charging into a single wall plug, with the foldable prongs making it more pocket-friendly than most 100W chargers. Prime members can apply coupon code "NVLEMW3N" for a savings of $20. 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

Useful for households that regularly burn through AA and AAA batteries in remotes, toys, or flashlights, this bundle includes the charger plus eight batteries. The 50% discount applies at checkout to drop the price to $10. Buy Now at Amazon

This Eco-Worthy 48V 60A charger is $191, down from $792, and the lowest price we could find by $186. It's built for LiFePO4 battery setups, including server rack batteries, and offers adjustable voltage and current for more control over charging. Shipping is free from a U.S. warehouse. This deal ends August 7.  Buy Now at AliExpress

A solid pick for households that run through AA or AAA batteries regularly in remotes, toys, flashlights, or similar devices. Apply coupon code "Y39RM9IL" for a savings of $18. Deal ends September 1.  Buy Now at Amazon

CR2032 batteries power a wide range of small devices like key fobs, watches, calculators, and glucose monitors, so having a stock on hand saves you from scrambling when something dies. Apply coupon code "2Q9L9Z38" for a total savings of $7. Deal ends August 25.  Buy Now at Amazon

Rechargeable AA batteries in bulk make sense for households running lots of remotes, game controllers, flashlights, or kids' toys. Apply coupon code "6VTG9QRH" for an extra savings of $14. Buy Now at Amazon

Ending today, AliExpress has this RV Pozwer 12V 100Ah LiFePO4 Battery for just $97. You'll need to add the promo code "YUSAF16" in cart to get this deal. That's $59 cheaper than Amazon's price. Shipping is free from a local US warehouse, too. The battery offers 1280Wh of capacity with a built-in 100A battery management system and a rated lifespan of up to 25,000 charge cycles, making it suited for solar, RV, or off-grid power setups. Buy Now at AliExpress

With promo code "NEWFINDS20", this 2-pack of third-party 20V Max 8.0Ah lithium-ion batteries compatible with DeWalt 20V Max tools drops to $26 at eBay. Similar generic batteries cost at least $45 at Amazon. The batteries carry CE, UL, FCC, and RoHS certifications and are listed with a 5-year manufacturer warranty. Coupon ends August 9. Buy Now at eBay

CR2032 batteries are the coin cells used in key fobs, watches, glucose monitors, and a wide range of small electronics, so a 16-pack is worth stocking up on. Apply coupon code "4QVDRTD4" for an extra savings of $3. Buy Now at Amazon

CR2032 batteries power a wide range of small devices like key fobs, remotes, calculators, and watches, so keeping a supply on hand saves you the frustration of hunting one down when something dies. At $3, that's 50% off the $6 list price for a 16-pack via coupon code "4XEHVJ99". Deal ends August 26.  Buy Now at Amazon