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Home Depot · Jul 24, 2026
Popular Deal
$89 $307
free shipping
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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
Features
- Includes one 18V ONE+ 2Ah battery and one 40V 2Ah battery
- Dual platform Hyper Charger works with both 18V and 40V batteries
- Charges the 18V ONE+ 2Ah battery in 25 minutes
- Charges the 40V 2Ah battery in 25 minutes
- Batteries are compatible with any RYOBI ONE+ or 40V tool
eBay · Aug 5, 2026
$66 $129
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This Milwaukee M12 RedLithium High Output 5.0Ah XC5.0 Battery Pack, which is compatible with more than 125 M12 cordless tools, is $63 less than Home Depot charges. It comes with a 3-year manufacturer warranty and ships free. Buy Now at eBay
Features
- 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
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staff pick
Amazon · Jun 22, 2026
Popular Deal
$11
free shipping w/ Prime
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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
Features
- 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
Amazon · Jun 11, 2026
$105 $160
free shipping
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Amazon offers this Greenworks battery 2-pack with charger for $105. That's a 34% savings. Shipping is free. Buy Now at Amazon
Features
- Two 4.0Ah (96Wh) 24V lithium-ion batteries included
- Dual-port rapid charger included
- Compatible with Greenworks 24V and 48V (2x24V) products
- Built-in USB port; 24,000mAh power bank capacity per battery
- On-board battery charge indicator
- 3-year battery and charger warranty