Discount Battery Charger & Accessory Sales and Deals

Boaters who need reliable backup power for dead marine batteries will appreciate this jump starter, since it works as both an AC and DC adapter for flexibility on and off the water. Buy Now at Newegg

Anyone maintaining a car, boat, or seasonal vehicle battery over the winter can use this to keep it topped off without overcharging it, and it's $16.40 off the usual $36 price at Walmart. Buy Now at Walmart

This charger works for topping off a car, motorcycle, or lawn equipment battery over the winter without overcharging it, and Walmart has it for $15.59, about $14 off the $30 list price. Buy Now at Walmart

Anyone who's misplaced their laptop's original charger will appreciate this one, since 230W at 19.5V covers most higher-powered laptops that standard 65W adapters can't handle. Buy Now at Newegg

Useful if you need a reliable 12V power supply for a device whose original adapter has failed or gone missing, since 12V/12.5A covers a fairly wide range of routers, LED strips, and similar electronics. Buy Now at Newegg

Handy for content creators who need their Wireless GO mics charged and protected between shoots without carrying a separate case and cable, though this one's currently priced at list, so there's no discount to factor in right now. Buy Now at Best Buy

This charger works well for anyone maintaining a car, boat, or motorcycle battery through the off-season without overcharging it, thanks to the automatic maintenance mode. At $17.59, it's $15.40 off the $32.99 list price. Buy Now at Walmart

Designed specifically for MSI GF63 laptops, this 120W adapter covers you if your original charger fails or you need a spare for a second location. Buy Now at Newegg

A straightforward option if your Sony Vaio's original charger has failed and you need a replacement without paying Sony's first-party pricing. Buy Now at Newegg

These adapters let you use standard AA Eneloop rechargeables in devices that need C or D batteries, handy if you've already got a stash of AAs and don't want to buy separate C/D rechargeables. At $14.30, that's about 43% off the $25 list price. Buy Now at Amazon

A solid pick if your original HP Omen adapter has failed or you want a spare, since 120W third-party adapters for gaming laptops tend to be harder to find at a reasonable price than standard chargers. Buy Now at Newegg

This works for keeping car, boat, or lawn equipment batteries topped off over winter storage without overcharging them, since it switches between 12V and 24V and shuts off automatically once full. Walmart has it for $18.59, which is $14.40 off the $32.99 list price. Buy Now at Walmart

Schools and offices juggling a fleet of tablets or laptops can charge and store 36 devices in one locked cart, keeping cables organized and equipment secure between uses. Buy Now at Newegg

Update: The price has changed to $35.90 since this was originally published.

Keeping one of these in your trunk means you won't need to flag down a stranger when your battery dies on a cold morning, and at $36 it's about $13 off the usual $49 price. Buy Now at Amazon

Anyone who's dealt with a dead emergency light during a power outage knows the frustration, and this 12V 1.3Ah battery with charger keeps yours ready to go when you actually need it. Buy Now at Home Depot

Handy for powering devices that use AA batteries without constantly replacing them, particularly useful in home labs, photography setups, or anywhere you run gear that drains batteries quickly. Buy Now at Newegg

Anyone maintaining a home security system or backup alarm setup can grab this to keep a reliable power source on hand without hunting down a compatible battery later. The included charger means you're set up to test and recharge the battery right out of the box, which simplifies routine maintenance. Buy Now at Home Depot

Update: The price has changed to $99.99 since this was originally published.

Stalled batteries in cold weather or older vehicles are the main use case here, and this jump starter delivers enough amperage for most trucks and SUVs without needing another car around. Amazon has it for $100, which is $50 off the $150 list price. Buy Now at Amazon

Anyone who relies on a Solar Jump-n-Carry battery charger for vehicle or equipment maintenance will want a reliable replacement adapter on hand, since a worn-out cord can leave your unit unusable right when you need it. Buy Now at Newegg