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 Home > NiMH - AA / AAA / C / D / 9V > AA NiMH Batteries

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AA NiMH Rechargeable Batteries

AA NiMH (Nickel Metal Hydride) Rechargeable Batteries 

AA NiMH (Nickel Metal Hydride) are rechargeable batteries that are often used in consumer electronics, manufacturing and industry and in offices everywhere.

The strength of an NiMh AA battery is between two and three times stronger than the chemistry called Nickel Cadmium. This is abbreviated as NiCD, which are also rechargeable. They are very popularly used in high-drain (consuming a lot of power) devices like Digital Cameras, Flashes, Radios and Flash Lights, just to name some. In these products where a lot of power is required to operate them, it’s easy to understand why hi-power batteries are the ideal choice and mostly sought after cells.

One of the most beneficial features that NiMH battery chemistry offers, in all battery sizes, not only AA, is that they do not sustain what is known as MEMORY EFFECT, an effect which can be seen in NICD batteries.

What this translates to, is that they can be charged and recharged at any time, without concern for how much power they have left remaining in them. Memory effect is a result. It’s the result of charging a battery before it has become fully depleted of power. In a battery that can sustain memory effect, if it’s charged before being “dead”, it will only be topped off and this new level, (the point it was topped off from), will become the battery’s new total amount of power. Clearly this can drastically shorten the runtime of a battery. In NIMH technology, this effect doesn’t occur. It’s quite a freedom for many to charge and recharge NIMH batteries because don’t have to wait until those batteries have run out of power.

We mentioned run time. We’d like to explain what that is. Run time is simply the length of time (hours) that a cell will deliver power for, (over the span of one full charge).

AA NiMH batteries offer many life cycles of recharging. This is significantly higher than the single life span offered in Alkaline batteries, which are not rechargeable.

There is today, a more advanced battery chemistry in AA size, as well as many other sizes, that is available in NIMH chemistry. It’s called LSD or, in its unabbreviated form, Low Self Discharge. They hold, or retain their charge, much longer than standard or regular NIMH. They discharge (when not in use – idle) much more slowly than standard ones. They can actually hold about 85 percent of their power (charge) while just sitting on the shelf, over about a 2 year span! That’s extremely beneficial for institutions and other volume users of LSD batteries who’s inventory might remain on the shelf for extended periods of time, until needed. Schools, for example, close during the summer season. Upon reopening in the Autumn, their LSD stock is still as fresh as it was back in June when they closed. We sell a large quantity of LSD batteries to vocational and trade schools and universities.

Here’s a little summary about NiMH battery chargers because it’s only logical that if you use rechargeable batteries, as AA NIMH are, then you’d need a battery charger to protect that battery purchase and get the full life (many life cycles) out of your NiMH batteries.

Battery Chargers that charge AA size NiMH batteries are sold in two different types of processing technologies. This simply means the way they operate. The way they perform their charging function. The ways are actually quite different with pros and cons and price differences to match each.

One of the processes is called Timer-Control Battery Chargers and the other kind is known as Smart Battery Charger. Smart battery chargers are also referred to as Intelligent Chargers. These next paragraphs will clearly illustrate why they are so intelligent.

Overview about TIMER CONTROL Battery Chargers

As the name implies, these chargers operate with an automatic shut off timer that is predetermined and built in during manufacturing. Charging time for different chargers range. Some charge for 4 hours, while others charge for 27 hours. Regardless of how long they charge for, the point is that they STOP charging AUTOMATICALLY at this pre-set amount of time. Timer Control Battery chargers are inexpensive. Very inexpensive but understand that all they do is charge the batteries in it for NON-NEGOTIABLE amount of time. This means that ALL The batteries inside it receive THE SAME AMOUNT of charge.  But what happens when some batteries need less, or more? What happens to the batteries that were only used a little bit and only require a small topping off? What about the batteries that were almost dead at the time of charge if they are then charged for 15 hours? What happens is this:

Some batteries become overcharged and some batteries remain undercharged. Let us explain here that batteries that have become overcharged, are ruined. Ready for the trash! Garbag-io! Batteries that are undercharged are not ruined – but they won’t give the use the run time they were intended to deliver. And sooner rather than later, they’ll need to be charged again. With all this, less than outstanding news, why would people still choose timer-control battery chargers when they buy a charger? Simple. It’s price!  Perhaps they paid so little for their batteries, perhaps they were FREE, that they don’t mind losing them to t he trash by accidently overcharging them in a timer-control charger. The price of this type of charger is much less expensive than smart chargers and oftentimes it’s just a matter of budget. All they can afford to pay is the price of a timer-control charger. To be honest, for the user who always waits until their batteries are completely dead, this type of charger is good. It’s just that many of us, if not most, don’t keep track of the juice left in each of our individual batteries. When they get a little low, we usually want to top them off

Here, we explore SMART/INTELLIGENT CHARGERS

The best part about Smart Chargers is that they’re actually smart!! They have the ability to treat each battery placed inside it, individually. This means that each battery receives charge to the degree it requires it. One battery might be half full and only need to replenished half. Anotherh battery in the charger might be ¾ empty and would need and receive ¾ the topping off power. This is quite an amazing technology! Yes, it costs more than does a timer control charger but no batteries can become over or undercharged in one. Over time, this higher price, greatly become absorbed (amortized) by the preservation of batteries it gives you.  Your entire battery inventory can no longer be at risk for ruin, with a smart battery charger!

BATTERY TESTERS

A battery tester isn’t a product that many people use often but they sure can come in handy when you do need them to test your AA NiMh rechargeable batteries.  Being rechargeable, it’s handy to know when they need more juice and just how much more juice! And that’s just what a battery testers role is. There are testers to test all NIMH battery sizes, including AA, AAA, C, D and 9 Volt and you can pick one up for a very small, and worthwhile outlay. Think about how owning a battery tester would benefit you or someone you know who uses batteries frequently.

WHOLESALE BATTERIES

For all large volume users of AA NiMH rechargeable batteries, you can save good money by buying your inventory in bulk packaging. If you’re a reseller, you might need them in display cards for retail sale. No problem.

We supply AA size NiMh rechargeable batteries at wholesale pricing to those who purchase quantity lots. We welcome Government Agency, School and University, Library, Corporate and Industrial Purchase Orders and will work with you closely, to deliver exactly what you require, when you require it. We are fully stocked and can accommodate scheduled shipments over time, as some customers require them, while others, prefer to have their order subdivided to several satellite locations of their organization. However you need them, just tell us! We are dedicated to becoming your number one battery supplier and will work hard to make it happen! We’ll work closely with you to meet just what your needs are! That’s the MEGA difference! 

Kindly scroll up to the top of this page and you’ll find our inventory of AA NiMH rechargeable batteries, if you are shopping around for them. Should you spot an item of interest, simply click on it and add it to your shopping cart. If BEFORE you buy however, you have questions about the product, that’s what we’re here for. Please contact us with your query so we can technically assist you before the buy. Our mission is to deliver just the best level of customer service we can with the hope you’ll return to us time and time again for all your future battery and battery charger requirements.


Call Toll-Free: 1-866-595-3317

 

Fax Toll-Free: 1-888-735-9475 

 

Email:sales@megabatteries.com

 

Wholesale Inquiries: wholesale@megabatteries.com


Daily Featured Specials
Reg. Price:
USD 169.99


Sale Price:
USD 119.99
100 x AA Rayovac Pre-Charged NiMH Batteries (1350 mAh) click for more info Item ID #19681
Reg. Price:
USD 13.99


Sale Price:
USD 9.79
4 x AA Rayovac (2400mAh) NiMH Batteries click for more info Item ID #18089
Reg. Price:
USD 153.89


Sale Price:
USD 124.99
48 x AA 2450 mAh Duracell (HR6 & DC1500) NiMH Batteries click for more info Item ID #18034
Reg. Price:
USD 82.79


Sale Price:
USD 69.99
24 x AA 2450 mAh Duracell (HR6 & DC1500) NiMH Batteries click for more info Item ID #18033
Reg. Price:
USD 57.99


Sale Price:
USD 42.99
8 x D 5000 mAh NiCd Rechargeable Batteries click for more info Item ID #13638
Reg. Price:
USD 49.99


Sale Price:
USD 27.99
24 x AA 700 mAh NiCd Batteries click for more info Item ID #13588
Reg. Price:
USD 124.99


Sale Price:
USD 58.99
90 pcs (6 Packs of 15) x 18 Volt Sub C NiCd (1700 mAh) Batteries click for more info Item ID #18187
Reg. Price:
USD 325.99


Sale Price:
USD 235.99
100 x Energizer CR2 3 Volt Lithium Batteries (50 Cards of 2) click for more info Item ID #19852
Reg. Price:
USD 63.59


Sale Price:
USD 39.99
8 x Duracell Ultra CRP2 (DL223) 6 Volt Photo Lithium Batteries click for more info Item ID #14612
Reg. Price:
USD 63.59


Sale Price:
USD 39.99
8 x 2CR5 Duracell Ultra 245 Photo Lithium Battery (245, dl245, el2cr5, el2cr5) click for more info Item ID #15193
Reg. Price:
USD 39.99


Sale Price:
USD 27.99
12 x Energizer CR123A 3 Volt Lithium Batteries (CR17345) click for more info Item ID #19687
Reg. Price:
USD 37.99


Sale Price:
USD 22.99
50 x CR2032 3 Volt Lithium Coin Cell Batteries click for more info Item ID #18664
Reg. Price:
USD 319.99


Sale Price:
USD 146.99
250 x CR2016 Panasonic 3 Volt Lithium Coin Cell Batteries (On a Card) click for more info Item ID #19167
Reg. Price:
USD 81.99


Sale Price:
USD 36.99
50 x CR2025 Panasonic 3 Volt Lithium Coin Cell Batteries (On a Card) click for more info Item ID #19156
Reg. Price:
USD 499.99


Sale Price:
USD 279.99
500 x CR2032 Panasonic 3 Volt Lithium Coin Cell Batteries (On a Card) click for more info Item ID #19150
Reg. Price:
USD 102.99


Sale Price:
USD 56.99
250 x AG13 (303, 357, LR44) Camelion Button Batteries click for more info Item ID #18925
Reg. Price:
USD 9.99


Sale Price:
USD 5.29
3.7V 1100 mAh Li-Ion UF653450R Sanyo Rectangular Battery click for more info Item ID #17000
Reg. Price:
USD 39.79


Sale Price:
USD 28.99
Universal Li-Ion Battery Charger + 2 Pcs 3.7 Volt 2200 mAh Li-Ion 18650 Batteries click for more info Item ID #16876
Reg. Price:
USD 63.49


Sale Price:
USD 42.99
12 x 3.2 Volt 400 mAh LiFePO4 14430 battery (14 mm x 43 mm) click for more info Item ID #18726
Reg. Price:
USD 32.99


Sale Price:
USD 28.99
LIR 2450 Charger + 2 x LIR 2450 3.6 Volt Li-Ion Rechargeable Button Cells click for more info Item ID #14510
Reg. Price:
USD 32.99


Sale Price:
USD 26.99
LIR 2032 Charger + 2 x LIR 2032 3.6 Volt Li-Ion Rechargeable Button Cells click for more info Item ID #14509
Reg. Price:
USD 8.99


Sale Price:
USD 2.69
4 Pack Maxell C Size Battery Adapters from 1 AA Battery click for more info Item ID #18325
Reg. Price:
USD 9.99


Sale Price:
USD 3.19
4 Pack Maxell D Size Battery Adapters from 1 AA Battery click for more info Item ID #18324
Reg. Price:
USD 30.99


Sale Price:
USD 25.99
Battery Rack Organizer for 82 Batteries with Battery Tester click for more info Item ID #18638
Reg. Price:
USD 6.99


Sale Price:
USD 4.69
Eneloop Battery Case Organizer for AA / AAA / C and D Batteries click for more info Item ID #16570
Reg. Price:
USD 89.99


Sale Price:
USD 69.99
2 x Genuine Welch Allyn 72200 3.5 Volt Medical Batteries click for more info Item ID #16549
Reg. Price:
USD 36.49


Sale Price:
USD 26.99
Medical Battery 72300 3.5 Volt Battery for Welch Allyn Handles click for more info Item ID #13969
Reg. Price:
USD 36.49


Sale Price:
USD 22.99
Replacement Welch Allyn 72200 3.5 Volt (NiCd) Nickel Cadmium Medical Battery for Welch Allyn Otoscope Handles click for more info Item ID #13968
Reg. Price:
USD 35.99


Sale Price:
USD 32.99
25 x CR2450 Camelion 3 Volt Lithium Coin Cell Batteries click for more info Item ID #14385
Reg. Price:
USD 12.49


Sale Price:
USD 9.29
5 x CR1632 Toshiba 3 Volt Lithium Coin Cell Batteries click for more info Item ID #18580
Reg. Price:
USD 74.99


Sale Price:
USD 52.99
120 x Size 312 Rayovac Hearing Aid Batteries click for more info Item ID #18295
Reg. Price:
USD 54.99


Sale Price:
USD 42.99
iRobot Roomba 4905 400 Series Vacuum Battery - 14.4 Volt  3.3 Ah NIMH Pack click for more info Item ID #15537
Reg. Price:
USD 33.99


Sale Price:
USD 17.99
100 x AA EXCELL Alkaline Batteries click for more info Item ID #19294
Reg. Price:
USD 22.99


Sale Price:
USD 17.99
50 x AAA Panasonic Industrial Alkaline Batteries click for more info Item ID #19636
Reg. Price:
USD 38.89


Sale Price:
USD 28.99
24 x C Duracell Procell PC1400 Alkaline Batteries (great for outdoor speakers) click for more info Item ID #16545
Reg. Price:
USD 52.99


Sale Price:
USD 42.99
48 x D Panasonic Industrial Alkaline Batteries click for more info Item ID #14993
Reg. Price:
USD 84.99


Sale Price:
USD 56.99
24 AA + 24 AAA + 12 C + 12 D + 6 9 Volt Duracell Procell Alkaline Battery Combo click for more info Item ID #19784
Reg. Price:
USD 39.99


Sale Price:
USD 32.99
16 x 20H 1.2 Volt NiMH Button Batteries click for more info Item ID #19839
Reg. Price:
USD 22.89


Sale Price:
USD 19.99
8 x 80H 1.2 Volt NiMH Button Batteries click for more info Item ID #19832
Reg. Price:
USD 47.99


Sale Price:
USD 36.99
16 x 2/3 AAA 200 mAh NiCd Battery - Button Top (For Solar Lights) click for more info Item ID #18344
Reg. Price:
USD 3.69


Sale Price:
USD 2.99
C Energizer Alkaline Batteries (2 Card) click for more info Item ID #19706
Reg. Price:
USD 3.99


Sale Price:
USD 3.49
D Energizer Alkaline Batteries (2 Card) click for more info Item ID #19703
Reg. Price:
USD 147.99


Sale Price:
USD 96.99
48 Cards of 4 AA Energizer Alkaline Batteries click for more info Item ID #19716
Reg. Price:
USD 4.29


Sale Price:
USD 2.89
9 Volt Energizer Alkaline Battery (On a Card) click for more info Item ID #19702
Reg. Price:
USD 72.99


Sale Price:
USD 43.99
8 Bay AA / AAA LCD Battery Charger + 8 AAA 1200 mAh AccuPower NiMH Batteries click for more info Item ID #19557
Reg. Price:
USD 102.99


Sale Price:
USD 73.99
8 Bay AA / AAA LCD Battery Charger + 16 AA 2600 mAh AccuLoop-X NiMH Batteries click for more info Item ID #19565
Reg. Price:
USD 71.99


Sale Price:
USD 45.99
S03 Tactical 900 Lumens Flashlight + Lithium Ion Charger + 18650 Samsung Li-Ion 3.7 Volt Battery (2600 mAh) click for more info Item ID #19221
Reg. Price:
USD 122.59


Sale Price:
USD 77.99
5 x CREE XR-E (4W) LED Aluminium Flashlight + 10 Duracell Ultra CR123A 3 Volt Lithium Batteries click for more info Item ID #17027
Reg. Price:
USD 15.99


Sale Price:
USD 6.59
24 Head Power Led Super Bright Emergency Light (PL-24) click for more info Item ID #17971
Reg. Price:
USD 11.99


Sale Price:
USD 6.29
24 Head Led Ultra Bright Rubber Puck Light click for more info Item ID #15442
Reg. Price:
USD 12.99


Sale Price:
USD 6.49
14 Head Led Ultra Bright & Light Flashlight (Black) click for more info Item ID #15362