Deals on Discount Batteries

Use promo code "USAFF5" to drop the price. That makes for a total savings of $65 off. Shipping is free. Buy Now at AliExpress

At Amazon, get this 12V 6A Auto Battery Charger for $11.50 when you add it to your cart and proceed to checkout. It's the lowest price that Amazon has charged for this battery charger. Shipping is free for Prime members. Shop Now at Amazon

A 1,500-amp portable jump starter is worth having in your car if you've ever been stranded with a dead battery and no one around to help. Apply coupon code "HYEBZYXR" for a savings of $40.65. Buy Now at Amazon

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

A 48A Level 2 charger suits EV owners who want faster home charging than a standard 32A unit can provide, particularly those with longer daily commutes or larger battery packs that take longer to top off. It's currently listed at $123.11, which is 50% off the $246.30 list price. Apply coupon code "YIZM3OF2" for a savings of $123.19. Buy Now at Amazon

As one of Home Depot's daily deals, get this DeWalt 20V MAX 4Ah Lithium Ion Battery 2-Pack for $60. That's $12 less than our last mention and the best deal we've seen for a 2-pack. Shipping is free. Deal ends today. Shop Now at Home Depot

This battery tester drops to $4.74, down from $5.93. It supports AA, AAA, C, D, 9V, and 1.5V cells, including rechargeable batteries, with an LCD readout. Shipping is free on Amazon Haul orders of $25 or more. Shop Now at Amazon

This Rechargeable 9V Battery 4-Pack with Charging Cable is $18.99 at Amazon with Subscribe & Save. That's a $5 savings. Shipping is free for Prime members. Buy Now at Amazon

It's the best deal we've seen for these batteries. Each battery includes a 3-LED fuel gauge and is compatible with the full 20V MAX tool and charger lineup. Shop Now at Amazon

Amazon is offering an extra 40% off over 200 packs of batteries from Rayovac, Energizer, and Eveready when you checkout via Subscribe & Save. Prime members will get free shipping, too. 

Buy this if: You regularly stock up on batteries and want to lock in a lower per-unit cost across multiple sizes and brands. Shop Now at Amazon

Amazon offers the Panasonic CR2032 3-Volt Long-Lasting Lithium Coin-Cell Batteries 10-Pack for $6.99. That's $10 below the original price. Shipping is free for Prime members. Buy Now at Amazon

AliExpress offers the Eco-Worthy 3,584Wh 12V 280Ah LiFePO4 RV Battery for $243.25 (reduced from $278.25) in Orange via promo code "AEDN35" with free shipping from a U.S warehouse.

It's also available in Gold for $360.64 (reduced from $401.14) via promo code "AEDN50". Buy Now at AliExpress