
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

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 tired of fumbling with cables between VR sessions will get the most out of this dock, since you just set the controllers down and swap batteries without stopping to plug in a cord. Walmart has it for $39, which is $31 off the $70 list price. Buy Now at Walmart
- Charge headset in 2-3 hours, controllers in 4 hours
- Magnetic USB-C interface for stable, long-lasting charging
- RGB ambient light for status monitoring and immersion
- Includes rechargeable batteries for 1,000+ uses
- Organizes headset and controllers for clean storage

Anyone building or repairing a 3S lithium-ion pack will find this useful, since it handles charging directly over USB-C at up to 2A without needing a separate power brick. It's a good pick for DIY power banks, drones, or small electronics projects where space and simplicity matter. Buy Now at Newegg
- 3S 12.6V battery charging
- DC 3-6V input voltage
- Integrated step-up boost converter
- Supports 2A charging current
- Polymer Li-Ion battery compatibility

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

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