AAA Batteries

AAA batteries are slim and lightweight cells often used to power small electronic devices like remotes and clocks. Triple-A batteries deliver the same voltage as AA batteries but are more suitable for compact devices that draw low current. While there are different types of AAA battery, they all have the same dimensions and sleek profile. Staples® carries a large inventory of AAA cells from different leading battery brands.

Choose From Different Types of Disposable AAA Batteries
A primary AAA battery can be an alkaline, lithium, or zinc-carbon cell. Each of these options offers certain advantages. Zinc-carbon AAA cells are the most affordable but with the least capacity. Alkaline batteries are the most common while lithium ones are more powerful. AAA lithium batteries have capacities between 1100 and 1250mAh while a typical AAA alkaline can hold about 1000mAh of electrical charge. Zinc-carbon AAA cells have half the capacity of lithium cells. They are good for low-drain devices. For electronics that require frequent battery changes, get a set of alkaline or lithium cells. Primary disposable batteries are not ideal for powering high-drain devices that deplete fresh AAA cells quickly. For such electronics, choose secondary rechargeable units.

Power Electronics for Less With Rechargeable AAA Batteries
One rechargeable AAA battery can replace hundreds of disposable ones. The ability to replenish the charge means that users don't have to throw away their AAA cells after depleting them. Besides lowering the cost of running portable electronics, AAA rechargeable batteries also have a much lower impact on the environment. While there are rechargeable alkaline cells in AAA form, the most popular type of batteries in this category are ones with NiMH cells. Nickel-metal hydride batteries have higher capacities than other types of rechargeable AAAs. They also boast longer lifespans. Rechargeable NiMH AAA cells come in capacities ranging from 800mAh to 2400mAh. High-quality models can last 500 to 1000 recharges.

How Can You Extend the Lifespan of Rechargeable AAA Batteries?
The two major ways to make AAA rechargeable batteries last longer is to avoid overcharging them and to refrain from fully depleting them before putting them back in their chargers. Overcharging strains the cells in a battery and reduces their capacity to hold a charge. To avoid this, only use smart chargers for AAA NiMH batteries. These cut off power when cells attain full charge. Batteries in storage also self-discharge. NiMH cells lose about 15 percent of stored charge every month even when unused. To keep them in peak condition, remember to top up stored batteries once every 2 or 3 months.

What Are LSD AAA Batteries?
LSD batteries are rechargeable NiMH units with low self-discharge. These can handle long-term storage better than regular rechargeable cells. LSD batteries usually have lower capacities but come pre-charged and ready to use out of the box. They retain 75 percent of their charge even when left idle for a year.

Are There Rechargeable Lithium AAA Batteries?
No. There are no rechargeable lithium batteries but there are rechargeable lithium-ion AAA cells. While they have similar names, lithium and lithium-ion batteries use different cell chemistries. Note that while AAA lithium batteries have a nominal voltage of 1.5V, rechargeable lithium-ion AAA cells put out 3.7V. Only use them in devices designed to accept 3.7-volt batteries.