
Clip the coupon and subscribe to drop the Energizer Max AAA Batteries 24-Pack to $7.05. That's a $6 low and its best price. Shipping is free for Prime members. Buy Now at Amazon

At Woot, this 4-pack of Energizer 2032 lithium coin batteries is $3.49, down from a $5.99 reference price. New Woot customers can also get an extra $3 off at checkout without a promo code. It's the best deal we've seen for this battery multipack. Deal ends September 12. Buy Now at Woot! An Amazon Company

At Woot, get this Energizer MAX AAA Batteries 24-Pack for $9.99. It's the best price we could find by $16. They're built with Powerseal Technology, which guards against leaks for up to two years after the batteries are used, and carry a shelf life of up to 12 years in storage. Deal ends August 31.
New to Woot? New customers can add this multipack to cart to get it for $4.99 automatically at checkout. Buy Now at Woot! An Amazon Company

Amazon offers the Eveready CR2032 Lithium 3V Battery 10-Pack for $3.01 when you clip the coupon and subscribe. That's its best-ever price. Shipping is free for Prime members. Buy Now at Amazon

Amazon offers the Rayovac High Energy Alkaline AA Batteries 60-Pack for $10 when you check Sub & Save and clip the on-page coupon. That's the best price we could find by $8 and the lowest we've seen for it. Prime members get free shipping. Buy Now at Amazon

At Woot, get the Energizer MAX D Alkaline Batteries 8-Pack for $4.99. It's the best price we could find by $14. Shipping is free for Prime members. Deal ends August 1. Buy Now at Woot! An Amazon Company

Today only at Woot, use promo code "BIRTHDAY26" to get this DeWalt 20V MAX XR Powerstack 3.5Ah Battery 2-Pack for $134. It's the best deal we've seen for this 2-pack and $41 less than the price Amazon charges. Buy Now at Woot! An Amazon Company
- compatible with 20V MAX tools and chargers

As one of its daily deals, Home Depot has cut 71% off the price of this Ridgid 18V Cordless Inverter Kit. That puts the price at just $79, a great price considering you'd pay $63 for the inverter alone today at Amazon. This kit includes a battery, charger, and the AC inverter, which has a 120V outlet plus USB-A and USB-C ports for charging small electronics on the go. The deal ends today. Buy Now at Home Depot
- Includes an 18V AC inverter that powers and charges small electronics
- Includes a 2.0 Ah MAX Output lithium battery
- Includes an 18V lithium battery charger
- Has one 120V outlet for plugging in standard electronics
- Includes two USB-A ports and one USB-C port
- Backed by free parts and service for life with registration

This Milwaukee starter kit includes two high-output batteries and a charger for $188 at Amazon. You'd pay $299 for the same kit today at Home Depot, so this is a great deal. The batteries deliver 50% more power and run 50% cooler than Milwaukee's standard M18 RedLithium XC packs. Buy Now at Amazon
- Includes two M18 RedLithium High Output XC6.0 batteries
- Includes one M18/M12 multi-voltage charger
- Delivers 50% more power than standard M18 RedLithium XC battery packs
- Runs 50% cooler than standard battery packs
- Operates in temperatures below 0°F
- Compatible with over 200 Milwaukee M18 cordless tools

Subscribe for this price on these Duracell batteries. Shipping is free for Prime members. You'd pay around double this price elsewhere; it's also at its best price of the past few years on Amazon. Buy Now at Amazon

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
- 2 amp hour lithium-ion battery
- Compatible with the RYOBI USB Lithium system
- Charges mobile devices
- LED fuel gauge shows battery level status
- Compact, lightweight design

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
- 25% more power than standard M12 XC batteries
- 5.0Ah extended runtime for longer performance
- Performs in extreme temperatures down to -18C
- Chemical-resistant housing protects against oils and greases
- Compatible with 125+ Milwaukee M12 cordless tools

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
- 99Wh lithium-ion V-mount battery
- Supports up to a 14A draw at 14.8V
- Includes D-Tap, USB-A, USB-C, and two DC barrel outputs
- Charges via USB-C PD fast charging in under 2 hours
- Built-in OLED display shows battery capacity and status
- Includes a limited 2-year manufacturer warranty

This 48-count combo pack drops to $23.74 when you check out with subscribe and save, right around the best deal we've seen. The pack includes 24 AA and 24 AAA alkaline batteries, each rated to hold a charge for up to 10 years in storage. Buy Now at Amazon
- 24 pack of Energizer MAX alkaline double AA batteries and 24 Pack of Energizer MAX alkaline triple AAA batteries
- Our no.1 longest lasting Max battery powers everyday devices, powerful batteries aa size and batteries aaa size
- Leak resistant construction protects your devices from leakage of fully used batteries for up to 2 years. Bonus: it's guaranteed
- Holds power up to 10 years in storage so you're never left powerless
- Eligible for use with an Amazon Dash Smart Shelf auto-replenishment scale to keep you stocked on your favorite necessities

Use promo code "SUMMERFIND20" to take 20% off (up to $500) Eco-Worthy lithium batteries at eBay. We found some of the best prices of the season on RV batteries, battery server racks, and backup batteries. These are all new and sold directly by the Eco-Worthy via eBay. Coupon ends July 1. Shop Now at eBay
- LiFePO4 & lithium chemistries available
- Voltages: 12V, 48V, 60V
- Capacities from 50Ah to 314Ah per unit
- Multi-pack bundles up to 30.72kWh
- UL1973 & UL9540A certifications on select models

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

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

Amazon offers the DeWalt 20V MAX XR Powerstack 3.5Ah Battery 2-Pack for $134. That's half of what you'd pay elsewhere. Shipping is free. Buy Now at Amazon
- 50% more power
- longer lifespan
- compact size
- durable, overmolded base
- LED charge indicator
- compatible with 20V MAX tools and chargers
- Model: DCBP320-2

Update: The price has changed to $9.99 since this was originally published.
At Amazon, check out with Subscribe & Save to get this Bonai CR123A 3V Lithium Battery 12-Pack for $9.49. It's the best price Amazon has charged for this multipack. They're rated for a 10-year shelf life and can operate in temperatures from -40°F to 140°F, making them suited for outdoor sensors and flashlights. Buy Now at Amazon

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
- 12V, 6A output
- Compatible with AGM, gel, LiFePO4, and lead-acid batteries
- Digital display: real-time voltage, current, charge percentage, and status
- Pulse repair for mildly sulfated batteries
- Protections: reverse connection, short circuit, over-temperature, over-current
- Universal 100-240V input; operating range -10°C to +45°C