
Walmart offers the Great Value Alkaline C Batteries 12-Pack for $7.49. That's a savings of half off the list price. Shipping is free with orders of $35 or more. Buy Now at Walmart

This new Woot Power Hour sale has good deals on batteries and charging accessories, including a 24-pack of Energizer MAX AAA batteries for $10, down from $20. Discounts across the sale reach as high as 76% off, covering items like power banks, wireless charging stations, and USB cables in addition to batteries. Amazon Prime members get free standard shipping on Woot orders, too. This sale ends October 31. Shop Now at Woot! An Amazon Company
- Energizer MAX AAA batteries in a 24-pack and 48-pack
- Energizer 2032 3V lithium coin batteries in a 4-pack
- Duracell rechargeable AA batteries in a 24-count set
- Portable chargers with up to 50,000mAh capacity
- Wireless and multi-device charging stations
- USB-C and Lightning charging cables

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

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
- Includes AA, AAA, 9V, C, and D alkaline batteries from Energizer and Rayovac
- Hearing aid battery sizes available include 10, 13, 312, and 675
- Coin and lithium batteries included for watches, key fobs, and cameras
- Multi-pack counts range from 2 to 60 batteries per item

Handy for keeping old smart cards, key fobs, or small gadgets running once you can't find replacement coin cells, since it lets you power CR2032-based devices straight from a USB-C cable instead. Buy Now at Newegg
- USB Type-C to CR2032 adapter
- 3-12V input voltage range
- Thin FFC cable design

Anyone building portable electronics or repairing battery packs will appreciate having charging and power delivery combined in one small module instead of wiring up separate circuits. The Type-C input makes it easy to power from a standard phone charger or power bank you probably already own. Buy Now at Newegg
- Fast charge 5V 9V 12V output
- Integrated UPS power supply function
- Type-C input interface
- DC-DC step up booster module
- Compatible with 18650 lithium batteries

Handy for anyone with a drawer full of mismatched batteries, since the magnetic tip lets you check charge levels hands-free without holding leads in place, and it's $2 off the usual price. Buy Now at Amazon
- Magnetic tip ensures stable battery contact
- Clear analog display for instant status reading
- Compatible with AAA, AA, C, D, 9V, button cells
- Eliminate waste by identifying usable batteries
- Compact, portable design for household use

Handy for anyone juggling a laptop, tablet, and phone off one outlet, since the GaN design packs 128W across three ports without the bulk of older chargers, and it's currently $5.22 off the list price at Amazon. Buy Now at Amazon
- 128W total power output
- 3-in-1 multi-device charging
- Compact design with foldable prongs
- GaN III energy-efficient technology
- Universal fast charging compatibility

Anyone building custom battery packs for DIY electronics will appreciate having two of these on hand, since the Type-C input lets you charge 3S lithium-ion setups without needing a separate boost converter. Buy Now at Newegg
- 3S Type-C to 12.6V charging
- DC 3-6V input voltage
- 2A charging current output
- Step-up battery converter module
- Polymer Li-Ion battery compatibility

Update: The price has dropped to $19.59 since this was originally published.
These C batteries suit anyone stocking up for flashlights, radios, or other household devices that drain batteries fast, and at $19.99 you're saving $3 off the $22.99 list price. Buy Now at Walmart
- 1.5V consistent power output
- 10-year shelf life
- Mercury-free safe design
- 16-pack high-capacity C batteries
- 18-month product warranty