Deals on Discount Batteries

Anyone still running D-cell devices like flashlights, boomboxes, or camping lanterns can skip the endless pack of disposables and reach for these instead, since they're built to handle repeated charging cycles for years of use. Buy Now at Walmart

These come in handy for the less common devices that need AAAA cells, like styluses, laser pointers, and some remote controls, and Walmart has this 8-pack for $3 off the usual price. Buy Now at Walmart

Handy to have on hand if your desktop won't hold the date, time, or BIOS settings after a shutdown, since that's usually a sign your motherboard's battery has died and needs a quick swap. Buy Now at Newegg

Handy for anyone who's dealt with a dead battery in a parking lot, this jump starter delivers enough power for most gas and diesel engines without needing a second vehicle around to help. Buy Now at Walmart

This SLA AGM battery works well as a replacement power source for things like emergency lighting, alarm systems, or kids' ride-on toys, and Walmart has it for $4 off the $20 list price. Buy Now at Walmart

This replacement battery suits anyone with a fleet of 40V yard tools who's tired of buying new packs at brand-name prices, offering 4,000mAh of runtime for mowers, trimmers, and blowers alike. It's a straightforward way to keep older tools running without paying for the original manufacturer's logo. Buy Now at Walmart

This works well for anyone whose Dyson V8 has started losing runtime or won't hold a charge anymore, giving the vacuum a second life without buying a new unit. Walmart has it for $29.99, about $1.50 off the $31.49 list price. Buy Now at Walmart

This works for anyone whose Dyson V7 runtime has started to fade, since a fresh battery restores full suction and cleaning time without buying a whole new vacuum, and Walmart has it for about $4 off the list price. Buy Now at Walmart

This works well for Dyson V7 owners whose original battery no longer holds a charge, with a higher 7.0Ah capacity than the stock battery for longer run time between charges. Walmart has it for $32, which is $6 off the $38 list price. Buy Now at Walmart

Designed for Tesla owners who want to use non-Tesla Level 1 or Level 2 charging stations, this adapter lets your car plug into the far more common J1772 network without any workarounds. At $120, that's $20 off the $140 list price. Buy Now at Best Buy

A straightforward replacement power adapter if your original Teac R-1 or R-2 clock radio charger has gone missing or stopped working, saving you from replacing the whole unit over a missing cable. Buy Now at Newegg

Handy for anyone whose Logitech Z515 speaker system won't hold a charge anymore, since replacing the battery costs a fraction of buying a new set. Newegg carries it as a standalone part, so you don't need to track down the whole unit just to fix a dead battery. Buy Now at Newegg

Keeping a car battery topped off between drives is the main job here, and the automatic shutoff means you can leave it connected without worrying about overcharging. At $18, that's exactly half off the $35 list price. Buy Now at Walmart

Anyone replacing a lost or frayed power supply for a 12V device will get reliable output without paying brand-name prices, and Newegg's return policy adds a safety net if the fit isn't right. Buy Now at Newegg

Anyone still running an older Dell XPS will want a reliable way to keep it going without paying Dell's replacement battery prices, and this 87Wh 9-cell pack gives you the extra capacity for longer stretches away from an outlet. Newegg carries it as a straightforward option if your original battery is finally losing its charge. Buy Now at Newegg

Handy for anyone still holding onto their Pure-Fi Anywhere 2 who's noticed the battery life isn't what it used to be, since Logitech doesn't sell replacements for this speaker anymore. Newegg carries the NTA2335 pack if you'd rather revive the speaker than replace it outright. Buy Now at Newegg

Worth a look for anyone whose Toshiba laptop battery no longer holds a charge, since this replacement swaps in without needing to send the machine off for repair. Buy Now at Newegg

Owning an EV without a home charging setup gets old fast, and this Level 2 unit plugs into a standard outlet to charge significantly faster than a regular wall socket. Amazon has it for $121, about $13 off the $134 list price. Buy Now at Amazon

Charges your phone and a second Qi2-compatible device simultaneously, which makes it a practical pick for iPhone users who also want to top off AirPods or a watch on the same pad. At $20, that's $5 off the $25 list price. Buy Now at Best Buy

Update: The price has dropped to $49.99 since this was originally published.

This sealed GEL battery suits motorcycle and powersport owners who want a maintenance-free replacement that won't leak, and it's currently $4.44 off the list price at Amazon. Buy Now at Amazon

Anyone running a fleet of Datalogic Memor X3 handhelds will want a spare or two of this battery on hand, since swapping in a fresh one keeps devices in service instead of sitting on a charger during a shift. Buy Now at Newegg

Warehouse and inventory teams running MC32N0 or MC3300 scanners through long shifts will get the most out of the added capacity, since it keeps handhelds running without a mid-shift swap. Newegg carries it if you need a direct replacement without hunting down third-party alternatives. Buy Now at Newegg

This one's suited for powering scooters, alarm systems, or backup equipment that takes a standard 12V 7Ah battery, and at $16 it's $4 off the usual $20 list price. Buy Now at Amazon

Anyone still running the original Beats Pill 1.0 that won't hold a charge anymore can get more life out of it with this replacement battery instead of replacing the whole speaker. Newegg carries it as a straightforward fix for a speaker that's otherwise perfectly functional. Buy Now at Newegg