AAA Batteries. Aaa battery power

Aaa battery power

Batteries are an incredibly popular power source that are used in a huge variety of projects. If you don’t want to plug your project into a wall, you’ll probably be using a battery to power it, so choosing the correct battery for your project is a very important step in the design process. There is a lot of variety in batteries, and a lot of factors that go into picking the perfect battery for your project. Here’s a quick rundown.

Form Factor

Batteries come in all sorts of shapes and sizes. In some cases the size and shape of the battery may be the most important factor. Coin cells and lithium-polymer batteries are great choices when a small form-factor is important. Other common battery sizes include AA, AAA, D, and 9V.


The chemistry that drives a battery is another characteristic to decide upon. Whether the battery is disposable or rechargeable is directly related to the battery’s chemistry. A few of the more popular disposable batteries include alkaline, lithium, and zinc-carbon. As far as rechargeable batteries go, there’s lead-acid (commonly found in automobiles), lithium-ion (often used to power consumer electronics), and NiCd and NiMH batteries (often take the same form as common alkalkine batteries: AA, AAA, etc.).

Nominal Voltage

A battery’s chemistry will also affect the nominal voltage that it will produce. For example, an alkaline battery, like a AA or AAA, has a nominal voltage of about 1.5V, while the voltage of a LiPo battery will usually be around 3.7V. The key word here is ‘nominal’, as the actual voltage of the battery will fluctuate depending on how much charge it has left. A fully charged LiPo battery will produce about 4.23V, while when discharged its voltage may be closer to 2.7V.

Common batteries, their chemistry, and their nominal voltage

Chemistry Battery Size Nominal Voltage Rechargable?
Alkaline or Zinc-carbon AA, AAA, C, and D 1.5V No
Alkaline or Zinc-carbon 9V 9V No
Li-MnO2 Coin Cell 3V No
Li-ion, Li-poly Various sizes 3.7V Yes
Li-poly Various sizes 3.7V Yes
NiMH or NiCd AA, AAA, C, D 1.2V Yes
Six-cell lead-acid Car battery 12.6V Yes

One more point on battery voltages: when two or more batteries are placed in series, the voltages of the batteries are added together. For example, lead-acid car batteries are actually made out of six single-cell lead acid batteries tied together in series; the six 2.1V cells add up to produce 12.6V. When tying two batteries in series, it’s recommended that they be of the same chemistry; also be wary of charging batteries in series as many chargers are limited to single-cell charging.


Capacity is another of the more important characteristics to observe when picking your battery. The capacity of a battery is usually rated in ampere-hours (Ah) or milliampere-hours (mAh), and it tells you how many amps a fully charged battery can supply over a period of one hour. For example, a 2000mAh battery can supply up to 2A (2000mA) for one hour. If you know the average current your project will require, and how long you want it to run before the battery dies, you can pick out a battery that will perfectly suit your project.

When you connect two or more batteries in parallel, the capacities add. For example, four AA batteries connected in parallel will still produce 1.5V, however the capacity of the batteries will be quadrupled.

Power Density

All of the characteristics above (size, voltage, and capacity) factor into a battery’s power density. Power density relates the amount of power (amps voltage) a battery can supply to its weight, and is usually displayed in terms of watt-hours per kilogram (Wh/kg). The higher the power density, the higher the power it can supply in smaller sizes. Lithium batteries (coin cells, LiPos) can pack a lot of punch into small spaces due to their high power density, while zinc-carbon and NiCd batteries have extremely low power densities. In general, disposable batteries are more power dense than rechargable batteries.

Example Question

With the above information at hand, here’s a quick quiz to test your shiny new knowledge:

Fill in the blanks: depending on a battery’s chemistry it can be either rechargeable or disposable. Alkaline batteries are a common example of batteries, while Lithium-polymer and lead-acid are very common batteries.

A lithium-polymer battery has a capacity rated at 2Ah. The battery is powering a circuit that consumes on average 10mA. If the battery is fully charged, theoretically how long can it power the 10mA circuit?

Four 1.5V alkaline batteries in series will produce what voltage?

Spoiler Alert! Highlight from here.

200 hours. How’d we get there? First convert the capacity of the battery to mAh: 2Ah (1000mA / 1A) = 2000mAh. Next, divide the capacity of the battery by how much current the circuit it powers will consume: 2000mAh / 10mA = 200h.

6V. How’s that work? Batteries in series have their voltages added together, so 1.5V 1.5V 1.5V 1.5V = 6V.

to here to reveal the answers. Because, you know, they’re so super-secret.

Quiz Question. Billy’s Battery’s Capacity I

Billy needs a night light when he goes to bed but when he sleeps in his tent in the backyard he has nowhere to plug his light in. So he reprogrammed his LectroCandle to constantly illuminate the 9 LEDs (3 RGBs) on there. Each LED has 10mA flowing through it and on top of that the ATTiny85 microcontroller consumes 8mA. The LectroCandle is powered by two fully charged AA alkaline batteries, placed in series, which each have a capacity of 1500mAh. Will the batteries last long enough to ward off the bogeyman? Theoretically, how long could they last?

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AAA Batteries

The AAA (triple-A) battery is a dry cylindrical cell defined by its roughly 44.5mm length and 10.5mm diameter. The AAA is commonly used in smaller home devices such as remotes and electronic toys. Triple-A batteries are typically button tops with either a 1.2 or 1.5 voltage, and come with an array of chemistries such as aklaline, NiMH, and lithium. Learn more about AAA batteries here.





1.2V / 1.5V
Alkaline / NiMH / Lithium / Carbon Zinc / Zinc Chloride
300 – 2600mAh
Yes, some

24A, 24D, 24LF, 3AAA, 824, AAA, AL-AAA, AM4, E92, EN92, FR03, K3A, L92, LR03, LR03XWA, MN2400, MX2400, PC2400, R03, Triple A, UM4

Are there rechargeable AAA batteries?

Yes, rechargeable AAA batteries use NiMH (nickel-metal hydride) chemistry and have a 1.2V voltage compared to the typical 1.5V. You can also buy 10440 li-ion batteries, which are the same size as AAA cells. Note that non-rechargeble triple-A batteries typically have a 1.5V voltage, which may differ from most 10440 batteries (3.6V) and rechargeable NiMH AAAs (1.2V). Always check with your device’s user manual to see if a battery voltage, chemistry and terminal-type is compatible.

Do AAA batteries expire?

Yes, all batteries eventually expire. AAA batteries have a range of shelf lives between 3 and 20 years, wholly dependent on the battery’s chemistry and storage conditions. We list the rated shelf life on all our product listings when available so you can make an informed choice when buying spares or bulk cells. For more information, check out our battery expiration guide!

What AAA battery brand lasts the longest?

We don’t play favorites at Battery Junction, and runtimes are often dependent on your device’s battery drain and operating temperature. Typically, batteries with larger capacities (mAh) have longer overall runtimes. Triple-A cells tend to max out at 2,600 mAh, and you can filter our wide-selection of batteries by ‘Capacity (mAh)’.

Do you offer bulk-pricing on AAA batteries?

Yes! A large selection of our batteries can be bought in bulk, letting you take advantage of huge discounts! You can filter our selection of batteries by bulk-eligibility, fill out a wholesale request form, or directly contact a member of our sales team now via phone or email!

batteries, battery, power

AAA Mobile Battery Service

Sometimes it’s better to replace a dead battery than jumping it. That’s why AAA provides convenient testing and replacement service that comes to you. If your battery fails the test and needs to be replaced, our professional technicians can install a AAA battery 1 and recycle the old one. We also offer a nationwide 3-year free replacement warranty.

You can request service online or call our 24/7 roadside mobile battery line at 1-877-516-0528.

AAA Mobile Battery Service options

Input your vehicle make and model to get a car battery quote with a AAA member discount. After reviewing the quote and requesting service, a technician will be dispatched to you.

Skip the phone and chat with our virtual assistant. Requests take an average of less than 4 minutes and can be submitted 24/7.

What do members get with AAA Mobile Battery Service?

AAA Mobile Battery Service offers competitively priced premium AAA-branded batteries provides:

We’ll come to your home, business, or the side of the road to test and replace your battery if needed

3-year free battery replacement warranty

We’ll dispose of and recycle your old battery

We’ll test your vehicle’s electrical system and battery, then print or email you the results

AAA Mobile Battery Service provides fresh AAA batteries (less than 150 days after factory activation)

AAA Mobile Battery Service tips frequently asked questions

They do more than start the car, and these important facts will help improve the life of your car battery.

Absorbent glass mat batteries have grown in popularity alongside hybrid cars. We look at what makes these batteries special and whether one may be right for you.

When the temperature drops near freezing, a battery maintainer or trickle charger may not keep your battery alive. But it’s not the battery charger’s fault; it’s that the weather is too cold.

Recharging your car battery any time is a good idea to extend its life. However, at 32 F, a typical battery is only 65% efficient, both at recharging and giving power. This means you’ll need more voltage or hours to recharge. In fact, your alternator may not be able to give your battery all the power it needs to spring back to life unless you’re traveling a long distance.

Your best move is to visit a repair shop. If a test shows significant weakness, a shop will have equipment to recharge your battery.

Driving every day keeps cold-weather damage at bay, since the car engine warms the battery. A good rule of thumb is to drive the length of your commute, even during holiday breaks.

The average commute in the United States and Canada is more than 20 minutes one way, according to the U.S. Bureau of Statistics and Statistics Canada. Driving a similar distance—to a cafe, the in-laws, or a grocery store on the far end of town—can keep your battery healthy.

However, visit a repair shop the moment your car is slow to start. That’s an early sign your car battery is on its way out, and driving won’t revive a dead battery.

  • In your garage
  • In parking garages with a lot of come-and-go traffic
  • Near heated equipment
  • Close to warm buildings
  • In spaces with lots of direct sunlight, which will warm the car
  • Anywhere warmer than shaded, direct outdoor weather

How warm does it need to be? That depends on your car battery’s size, power, and age. The weaker the battery, the warmer it has to be to ensure you can start your car.

Battery warmers, insulators, electric battery blankets, thermal wraps are all corrosion-resistant heat blankets you can buy to protect your battery. In a pinch, throw a dry, thick bath towel on the battery after you’ve driven enough to warm the engine. As soon as you park, pack the towel onto the battery. The extra coating will retain engine heat. Be sure to remove the towel before starting the engine again.

1 AAA Mobile Battery Service is part of Roadside Assistance for AAA members, generally provided by independent service providers, and is only available in select areas during select hours. Batteries and battery warranties are provided by independent suppliers. The battery test and replacement service counts as one of the member’s four (4) allowable service calls per membership year. Batteries are available for most makes and models. Battery vary depending on vehicle make and model. Warranty valid in the United States and Canada. Copies of the warranties are available for inspection from the technician at any time upon request. Membership Roadside Assistance terms and conditions apply to mobile AAA Battery Service. See the member guide for details.

2 Price does not include tax and environmental fee. Certain vehicles due to the location of the battery may require both additional time and labor costs to install. Batteries are available for most, but not all vehicles. Service may not be available in all areas and times.

USB-Rechargeable AAA Battery Kit

Never Buy Traditional AAA Batteries Again! Always have power on hand for your critical devices with your 4Patriots USB-Rechargeable AAA Battery Kits. These rechargeable batteries work anywhere you’d use “regular” AAA Batteries. And they pay for themselves hundreds of times over.

  • Rechargeable up to 500 times
  • Fast charge in as little as 1.5 hours
  • 500x the lifespan of traditional batteries
  • Kit includes 4 AAA Batteries, 1 clamshell case, and 1 micro USB charging cord
  • Ships from Utah, USA
  • FREE digital blackout report
  • FREE Shipping for orders of 97 (USA 48)

USB-Rechargeable AAA Battery Kit

Never Buy Traditional AAA Batteries Again!

Your USB-Rechargeable AAA Battery Kit is in it for the long haul. Drain them down and charge them again… up to 500 times! And you can use your USB-Rechargeable Battery Kits to power multiple devices like.

  • Radios
  • Clocks
  • Flashlights
  • Toys
  • TV remotes
  • Digital Cameras
  • Electric razors
  • Handheld games
  • Wireless mouse

And much more! Click “Add to Cart” to start your order now.

24 Hours a Day / 7 Days a Week / 365 Days a Year

Battery performance varies based on charging and usage conditions.

“You WILL Want These In An Emergency”

Real reviews from real customers. Sometimes customers receive a free product to test or receive a free product as a thank you for submitting honest feedback. For more information, see footnote 1.

Real reviews from real customers. Sometimes customers receive a free product to test or receive a free product as a thank you for submitting honest feedback. For more information, see footnote 1.

Just Think of all the Places You’ll Use These Rechargeable Batteries

You can use your USB-Rechargeable AAA Battery Pack to power multiple devices. So be sure to keep these handy batteries in cars, at home, at the cabin, or in your RV. Anywhere you might need an extra oomph of portable backup power like.

  • At home
  • Power outages
  • In emergencies
  • Camping
  • Hunting
  • Fishing
  • Road Trips
  • RVing

And much more! These batteries could truly make a difference for you and your family in a crisis. Click “Add to Cart” to start your order now.

24 Hours a Day / 7 Days a Week / 365 Days a Year

Battery performance varies based on charging and usage conditions.

“Fast Recharge” with Any USB

Your batteries can be charged using the included micro USB cord. So you can recharge these batteries anywhere, anytime with just a USB outlet.

Battery charge times vary based on individual battery capacity. For more information, see footnote 2.

500x the Power of a Traditional Battery!

These rechargeable battery collections will pay for themselves thousands of times over. You’ll save a ton of money. because you can drain them down and recharge them… 500 times!

Your Best Choice for Value Convenience

Truth be told, your USB-Rechargeable AAA Battery Kits can save you a mountain of money, time and boxes full of wasted and hazardous single-use batteries.

batteries, battery, power

USB-Rechargeable AAA Battery Information:

Compatible Devices

batteries, battery, power

100% Satisfaction Guarantee

Claim Your USB-Rechargeable AAA Battery Kits Now

24 Hours a Day / 7 Days a Week / 365 Days a Year

batteries, battery, power

Battery performance varies based on charging and usage conditions.

You Get a FREE Bonus Gift with Your Order

With your order you’ll get a FREE bonus gift, digital gifts will be sent to your inbox immediately after purchase:

[FREE] Blackout Response Guide

In this exclusive digital report, you’ll learn how to keep your life ON even when the power is OFF. It’s packed with tips and tricks on how to handle a blackout like:

  • 13 items to have ready before a power outage
  • When NOT to use candles (it’s not what you think)
  • 1 phone number to never call for blackout updates
  • How to prepare your pets
  • Step-by-step tips for keeping food and water safe

Your USB-Rechargeable Batteries and FREE bonus gift could truly make a difference for you in a crisis. Click the “Add To Cart” button below.

24 Hours a Day / 7 Days a Week / 365 Days a Year

Battery performance varies based on charging and usage conditions.

Customer Reviews: Folks Love These USB Batteries

I Bought 4 Kits to Charge EVERYTHING

I bought 4 four-packs of USB batteries and I am so glad I found these. After charging all the batteries I’m using them everywhere. Flashlights, PC mouse, led lighting, blood pressure cuff.

The four-battery charger port that comes with each pack is a neat nesting device that can not only charge the batteries but also other USB devices.

This product will pay for itself very quickly. Did I mention that I can charge my drone too and use the batteries in the wireless controller too.

I Feel Secure Having This

These batteries can be a lifesaver when something unexpected happens. Especially along with the 4Patriots solar-powered charger. They can all work hand-in-hand together.

Grab as many of these as you can get. You never know when you’ll need them, but you’ll be thankful you have them when that time comes!

Real reviews from real customers. Sometimes customers receive a free product to test or receive a free product as a thank you for submitting honest feedback. For more information, see footnote 1.

Your 4Patriots Order is 100% Risk-FREE

100% Money-Back Satisfaction Guarantee

If for any reason you’re not satisfied with your 4Patriots products, just return them within 365 days (that’s a full year) from the date of purchase and we’ll refund 100% of your purchase price. So there is no risk to you.

Your Order Helps USA Veterans

When you shop with 4Patriots, a portion of the proceeds goes to charities that support our veterans and their families. Including Operation Homefront, Fisher House, A Soldier’s Child-Foundation and Team Rubicon.

4Patriots and our affiliated brands have donated more than 975,000 since we founded the company. And the number keeps growing!

You can feel good knowing that you’re supporting our veterans while getting the peace of mind you deserve.

An American Company You Can Count On

Thanks to your support, we’re able to employ 175 American men and women from all across the USA. People who work hard and truly enjoy helping folks get prepared for emergencies.

Our office is located in Nashville, Tennessee. We’re real people – Americans. Not some 800 number in a foreign call center.

So, if you need help… please call or chat with our friendly, America-based customer service team today.

Claim Your USB-Rechargeable AAA Battery Kits Now

24 Hours a Day / 7 Days a Week / 365 Days a Year

Battery performance varies based on charging and usage conditions.

Frequently Asked Questions

Q: What if I change my mind?

Q: Is it safe to buy online?

  • All testimonials in this advertisement are from real people; sometimes names and photos have been changed to protect their privacy and some were given free products in exchange for their honest feedback. Testimonials represent exceptional results, don’t apply to the average purchaser and are not intended to guarantee that anyone will achieve the same results. The organizations, publications and people referenced on this site are not affiliated with 4Patriots. They have not endorsed, sponsored or recommended this product; no affiliation or endorsement is claimed. Terms conditions apply.
  • Battery charge times will vary based on the power capacity (mAh) of the battery. Always follow proper charging and usage instructions. Approximate charge times per battery type are as follows… AAA-batteries: 1.5 hours.

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Testimonials featured on this site are from real people. Sometimes names pictures are changed to protect their privacy safety; some were given free products in exchange for honest feedback. Testimonials represent exceptional results, don’t apply to the average purchaser, and don’t guarantee that you’ll achieve results. Cade Courtley is a former Navy SEAL who served 9 years of active duty and has been compensated by 4Patriots for his hard work in helping us test and endorse products. The United States Military (including the U.S. Navy SEAL Team) and other organizations, publications and people referenced on this site, are not affiliated with 4Patriots. They have not endorsed, sponsored or recommended this product; no affiliation or endorsement is claimed.

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