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Amazon · Expired Aug 1, 2026
$9 $18
free shipping w/ Prime
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Hearing aid batteries have a short shelf life in daily use, so buying in bulk makes sense. Apply coupon code "CRX6LDE8" for a savings of $9. The 24-pack is also reduced via the same code, from $9.99 to $4.99. Offer ends July 31. Buy Now at Amazon
Features
- Easy-access dial storage design
- 3-year shelf life
- Compatible with remotes, alarms, toys, and handheld devices
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eBay · Expired Aug 16, 2026
$164 $269
free shipping
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With promo code "BRANDS20", this Makita BL4040F 40V Max XGT battery drops to $164. It's the best deal we could find by $50. The battery is built to run cooler under continuous heavy use, which can help maintain performance during extended jobs. Coupon ends August 16. Buy Now at eBay
Features
- 40V Max XGT lithium-ion battery rated at 4 Ah
- Designed to run up to 32% cooler under continuous heavy load
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Best Buy · Expired Jun 27, 2026
$80 $230
free shipping
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Wolfbox 4000A Car Battery Jump Starter for $80, which is $150 off the $230 list price. A jump starter like this is useful to keep in your trunk if you drive older vehicles, live somewhere cold, or just want a backup that doesn't require another car nearby, and 4000A of peak current means it can handle most gas engines and larger diesel ones too. Buy Now at Best Buy
Features
- Massive 4000A Peak Current & Capacity
- 65W Two-Way USB-C Fast Charging
- Smart HD LCD Display & One-Touch Boost
- Advanced Safety Protection & Weather Resistance
Amazon · Jun 23, 2026
$60 $80
free shipping
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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
Features
- 10500mAh true capacity for longer shoots
- PD 36W fast charging in 3.5 hours
- 54W dual-port charging for camera and phone
- OLED touch display shows remaining battery
- 8-layer protection for safer outdoor use
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Amazon · Expired Jul 1, 2026
$59 w/ Prime $70
free shipping
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SmallRig makes well-regarded third-party camera accessories, and this NP-FZ100-compatible battery set is a practical pickup for Sony Alpha shooters who want backup power without buying directly from Sony. At $59, that's $10 off the $70 list price. Buy Now at Amazon
Features
- Charges two NP-FZ100 batteries in about two hours
- Works with Sony Alpha, FX3, and ZV-E1 cameras
- USB-C fast charging from wall, car, or power bank
- Shows battery level with five-LED power indicators
- Protects batteries with over-temperature and over-voltage safeguards
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eBay · Expired May 14, 2026
$30 $50
free shipping
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At eBay, get the Refurb Greenworks 80V 2A Standard Charger for $30. That's a savings of $20. It's backed by a two-year Allstate warranty. Buy Now at eBay
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