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 Home > Cases, Adapters & Testers > Battery Cases, Adapters & Testers

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Battery Rack Organizer for 82 Batteries with Battery Tester

Price: USD 30.99
Qty:  

Battery Rack Organizer for 66 Batteries with Battery Tester

Price: USD 27.99
Qty:  

Battery Rack Organizer for 40 Batteries with BatteryTester

Price: USD 24.99
Qty:  

Universal Battery Tester for more than 12 Types of Batteries

Price: USD 21.99
Qty:  

Digital Multimeter - Multi Function

Price: USD 19.99
Qty:  

Eneloop Battery Case Organizer for AA / AAA / C and D Batteries

Price: USD 6.99
Qty:  

12VDC Car Cigarette Charger plug (5.5 x 2.5mm barrel male)

Price: USD 6.99
Qty:  

Battery Tester for AA / AAA / C / D Batteries

Price: USD 6.99
Qty:  

IPowerUS AA & AAA Battery Cases

Price: USD 1.69
Qty:  

Spacers for 6 Slot Li-ion Smart Charger

Price: USD 1.39
Qty:  

Sony AA & AAA Battery Cases

Price: USD 1.29
Qty:  

Sony AA & AAA Battery Cases

Price: USD 1.29
Qty:  

2 x D Size Battery Adapters from 1 AA Battery

Price: USD 3.99
Qty:  

2 x C Size Battery Adapters from 1 AA Battery

Price: USD 3.89
Qty:  

4 Pack Maxell D Size Battery Adapters from 1 AA Battery

Price: USD 9.99
Qty:  

4 Pack Maxell C Size Battery Adapters from 1 AA Battery

Price: USD 8.99
Qty:  

4 x D Size Battery Adapters from 1 AA Battery

Price: USD 7.59
Qty:  

4 x C Size Battery Adapters from 1 AA Battery

Price: USD 7.29
Qty:  

8 x D Size Battery Adapters from 1 AA Battery

Price: USD 14.49
Qty:  

8 x C Size Battery Adapters from 1 AA Battery

Price: USD 12.59
Qty:  

12 x D Size Battery Adapters from 1 AA Battery

Price: USD 20.59
Qty:  

12 x C Size Battery Adapters from 1 AA Battery

Price: USD 19.29
Qty:  

16 x D Size Battery Adapters from 1 AA Battery

Price: USD 25.69
Qty:  

16 x C Size Battery Adapters from 1 AA Battery

Price: USD 23.99
Qty:  

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Battery Cases, Battery Racks/Organizers and Battery Testers

If you use batteries, perhaps you want to check out some of our products that go with them like hand-in-glove, here.

At MEGAbatteries.com, we take care of all your battery and battery-related product needs. If it’s your first time here, welcome! Have a look around: Here’s our index.

If you’re a return visitor, we’re very glad to have you back. There are many new items to see. Have you seen our daily specials in a while? You should probably bookmark that section of our website for easy access in the future!

Whether you use Alkaline or Lithium (non rechargeable) batteries, or NiMH and NiCD rechargeable batteries, you can benefit from related products to test, organize, store, transport and even change them! Well, when we say, we mean, “adapt”. Read on to discover what we mean….

First, we’ll describe our Battery Adapters.

Battery Adapters convert small batteries into larger ones. Well, when we say convert, we mean their size. No longer do you need to own batteries in all sizes, if you only use a couple of sizes in total. Battery Adapters will allow you to power your battery-operated devices if the batteries you own are too little to fit into battery compartment. They’re really a truly practical solution!

So as you can see, you need never again be out of luck, in operating an old radio or CD player that needs c or d batteries if you have aa or aaa batteries and battery adapters. Get some at the top of this page! You only have to buy them once and you’re good to go from then on!

Here We Cover Battery Cases

Many people have cluttered work spaces, work-shops, and offices. Their briefcases and knapsacks might look as though they’ve been ransacked! Yikes! It’s battery cases to the rescue! They’ll keep your batteries from rolling off the tabletop, keep them from hiding under paperwork in your drawer or briefcase and are just plain sensible to use to store and protect your batteries. We have cases for so many other things in our lives. Why not for our batteries too?

Does your workshop have loose batteries in it, sometimes rolling off the table?

Battery Racks Rock!

No matter how many or how few batteries have, a battery rack will house all your batteries neatly and out of the way from where you actually live and work. Most batteries are cylindrical and roll around if not held in place. Always have your AA, AAA, AAAA, C, D and 9 Volt batteries front-facing, neatly placed in battery rack and always know where to find them!

Now We Get to Battery Testers

As we mentioned, regardless of the chemistry of your batteries or if they are rechargeable or not, battery testers have been around for a long time and serve an extremely useful purpose, namely, that they test the power of batteries. If you are ever unsure about what power remains in any of your batteries, it’s a battery tester that will tell you. Suppose you’re planning a trip to the beach for the whole day and of course, what’s a day at the beach without a portable radio. Everyone gathers around it listening to songs as they tan on a gigantic beach blanket. Well, the batteries required for that radio are likely C’s or D’s. And you’d want to know they are charged full before you head out for the day. That’s just one example of where a battery tester would be useful to you. Anytime at all that it would help you to know the strength left in your cells without having to guess at it, is when a battery tester does the trick.

In terms of rechargeable batteries, NiMH cells do not suffer from something called memory effect. This means that you don’t have to wait until they are fully “dead” before charging them. In cells that to sustain memory effect, you must wait until the battery has no more power in it before recharging, so as not to lessen it’s memory to the point where they are topped off. NiCD (Nickel Cadmium) rechargeable batteries however, can suffer from this effect and so they must only be charged and recharged once they are fully discharged. You can therefore use your battery tester on NiCD’s to see what power exactly, remains in them and know when and if to charge. Of course, with all non rechargeable batteries, it’s always helpful to know how much power remains in them for whatever your application is. You might be intending to attend a sporting event or birthday party for example. You might wish to capture the moments on video or take still shots. Instead of carrying around additional batteries to use in case the ones in your camera “die”, testing them first with a battery tester will ensure you only take the fully charged cells with you to your event.

Battery testers, cases, racks, and adapters all cost very little relative to the services they perform and benefits they offer you for the use, and maintenance of your inventory of batteries.

Please scroll up to the top of this page where you’ll see our inventory of Battery testers, cases, racks, and adapters. Simply click on any of the links that appeal to you to read more detailed descriptions about them and then add tem to your shopping cart at anytime.

We invite you to check out our terrific daily specials located at the bottom of this page and accessible through our left-side index on each page of our site. In this section, you’ll see the 50+ items we slash the prices on each day. The items change on a daily basis, so when you see a product you want that is reduced so much, grab it then and if we may suggest, stock up on a healthy quantity to fully appreciate the most savings!

At MEGAbatteries, we’re always here for you, our valued visitor. If you have any questions about Battery testers, cases, racks, and adapters that haven’t been discussed on this page, please reach us and we’ll provide all the technical information you need in order for you to make an informed and correct purchase. That’s the MEGA difference!

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 69.99


Sale Price:
USD 49.99
8 x C 6000 mAh Accupower NiMH Rechargeable Batteries click for more info Item ID #14583
Reg. Price:
USD 69.99


Sale Price:
USD 56.99
12 Volt 4500 mAh (10 x 4/3 A) NiMH battery pack For 12V Devices, Laptops, Camcorders Etc.. click for more info Item ID #16209
Reg. Price:
USD 38.99


Sale Price:
USD 29.99
12 Volt 2200 mAh (10 x AA) NiMH Battery Pack with Leads click for more info Item ID #16208
Reg. Price:
USD 99.99


Sale Price:
USD 44.19
100 x Panasonic CR2016/F2N 3 Volt Lithium Coin Cells w/ Tabs click for more info Item ID #19874
Reg. Price:
USD 14.79


Sale Price:
USD 6.79
5 x  CR2032 Panasonic 3 Volt Lithium Coin Cell Batteries (On a Card) click for more info Item ID #19144
Reg. Price:
USD 23.99


Sale Price:
USD 9.79
10 x CR2025 Panasonic 3 Volt Lithium Coin Cell Batteries (On a Card) click for more info Item ID #19154
Reg. Price:
USD 45.99


Sale Price:
USD 30.49
8 Energizer CR1/3N (2L76) 3V Lithium Batteries click for more info Item ID #17935
Reg. Price:
USD 194.99


Sale Price:
USD 72.99
100 x Camelion P7 1.5 Volt 2900 mAh AA Lithium Batteries click for more info Item ID #16370
Reg. Price:
USD 50.99


Sale Price:
USD 28.99
24 x Camelion P7 AA 2900 mAh 1.5 Volt Lithium Batteries click for more info Item ID #16368
Reg. Price:
USD 92.79


Sale Price:
USD 84.99
144 x Size 312 Duracell (DA312) Easy Tab Hearing Aid Batteries click for more info Item ID #16312
Reg. Price:
USD 92.79


Sale Price:
USD 69.99
144 x Size 13 Duracell Activair (DA13) Easy Tab Hearing Aid Batteries click for more info Item ID #16302
Reg. Price:
USD 92.79


Sale Price:
USD 77.99
144 x Size 10 Duracell Activair (DA10) Easy Tab Hearing Aid Batteries click for more info Item ID #16293
Reg. Price:
USD 72.99


Sale Price:
USD 62.99
2 x iRobot Roomba 4905 400 Series Vacuum Battery - 14.4 Volt  2.1 Ah NICD Pack click for more info Item ID #17891
Reg. Price:
USD 72.99


Sale Price:
USD 57.99
2 x iRobot Roomba 500, 600, 700 & 800 Series Vacuum 14.4 Volt 2.1 Ah NiCd Battery Packs click for more info Item ID #17890
Reg. Price:
USD 54.99


Sale Price:
USD 48.99
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 17.99


Sale Price:
USD 9.69
10 x SR44 1.5 Volt Silver Oxide Button Batteries (LR44 AG13  L1154 PX76A G13 A76 S76  357) click for more info Item ID #16917
Reg. Price:
USD 69.99


Sale Price:
USD 42.99
50 x 364 Sony Silver Oxide Button Battery (SR621SW, AG1, SR60, LR621, 164, SR621W) click for more info Item ID #18510
Reg. Price:
USD 21.99


Sale Price:
USD 12.99
6 x 377 Energizer (SR626SW, 376, SR66, LR66  AG4) Silver Oxide Button Batteries (2 Pack) click for more info Item ID #18410
Reg. Price:
USD 4.29


Sale Price:
USD 1.69
4SR44 6 Volt Silver Oxide Battery (L1325, 28A, A544, PX28A) click for more info Item ID #15927
Reg. Price:
USD 10.29


Sale Price:
USD 9.29
4  x 9 Volt Duracell Procell (PC1604) Alkaline Batteries click for more info Item ID #15402
Reg. Price:
USD 56.99


Sale Price:
USD 48.99
25 x 9 Volt Duracell (MN1604) Alkaline Batteries click for more info Item ID #14424
Reg. Price:
USD 79.99


Sale Price:
USD 56.99
250 x AAA Panasonic Industrial Alkaline Batteries click for more info Item ID #19638
Reg. Price:
USD 61.69


Sale Price:
USD 49.99
96 x AAA Duracell Alkaline Batteries (48 Cards of 2) click for more info Item ID #19473
Reg. Price:
USD 6.99


Sale Price:
USD 6.19
C Energizer Alkaline Batteries (4 Card) click for more info Item ID #19953
Reg. Price:
USD 109.99


Sale Price:
USD 79.99
72 x C Duracell Procell PC1400 Alkaline Batteries (1 Case) click for more info Item ID #15617
Reg. Price:
USD 1.69


Sale Price:
USD 1.39
C Duracell Procell PC1400 Alkaline Battery (great for outdoor speakers) click for more info Item ID #15611
Reg. Price:
USD 91.95


Sale Price:
USD 39.99
60 x D Panasonic Industrial Alkaline Batteries click for more info Item ID #14994
Reg. Price:
USD 41.69


Sale Price:
USD 36.99
24 x D Energizer Industrial EN95 Alkaline Batteries click for more info Item ID #15936
Reg. Price:
USD 349.99


Sale Price:
USD 239.99
216 x D Duracell Procell PC1300 Alkaline Batteries  (3 Case) click for more info Item ID #15626
Reg. Price:
USD 56.99


Sale Price:
USD 44.19
16 AA + 16 AAA + 8 C + 8 D + 4 9 Volt Energizer Industrial Alkaline Battery Combo click for more info Item ID #19780
Reg. Price:
USD 29.49


Sale Price:
USD 23.89
25 x AA & 25 x AAA Duracell CopperTop Alkaline Battery Combo click for more info Item ID #17397
Reg. Price:
USD 79.99


Sale Price:
USD 65.99
24 AA + 24 AAA + 12 C + 12 D + 6 9 Volt Duracell Coppertop Alkaline Battery Combo click for more info Item ID #19785
Reg. Price:
USD 6.99


Sale Price:
USD 5.89
Saft LS14250 (ER14250) 3.6V 1/2 AA 1200mAh Lithium Battery click for more info Item ID #17955
Reg. Price:
USD 69.99


Sale Price:
USD 49.99
8 Pcs RFA-188 Compatible Petsafe Fence / Dog Collar Battery click for more info Item ID #18014
Reg. Price:
USD 21.99


Sale Price:
USD 14.29
4 Pcs RFA-67 Rayovac Compatible Petsafe Fence / Dog Collar Battery (2 x 2 Pack) click for more info Item ID #19049
Reg. Price:
USD 56.49


Sale Price:
USD 39.99
12 x CRP2 (223A) 6 Volt Lithium Batteries click for more info Item ID #17655
Reg. Price:
USD 639.99


Sale Price:
USD 449.99
100 x Panasonic 2CR5 6 Volt Photo Lithium Batteries (245, dl245, el2cr5) click for more info Item ID #18858
Reg. Price:
USD 32.99


Sale Price:
USD 25.99
4 x 2CR5 Duracell Ultra 245 Photo Lithium Battery (245, dl245, el2cr5, el2cr5) click for more info Item ID #15192
Reg. Price:
USD 63.59


Sale Price:
USD 54.99
8 x Duracell Ultra CRP2 (DL223) 6 Volt Photo Lithium Batteries click for more info Item ID #14612
Reg. Price:
USD 21.99


Sale Price:
USD 11.29
3 pcs Fidget Spinners - Variety Pack (Yellow, Green and Purple) click for more info Item ID #19918
Reg. Price:
USD 39.99


Sale Price:
USD 26.99
8 Bay AA / AAA Charger + 8 AA (600 mAh) NiCd Batteries click for more info Item ID #15198
Reg. Price:
USD 39.99


Sale Price:
USD 26.99
4 Hr AA / AAA Smart Charger + 8 AA Rayovac (2400mAh) NiMH Batteries + Bonus Offer click for more info Item ID #19301
Reg. Price:
USD 29.99


Sale Price:
USD 19.99
4 Hr AA / AAA Smart Charger + 4 AA 2300 mAh Energizer Recharge NiMH Batteries + Bonus Offer click for more info Item ID #19298
Reg. Price:
USD 28.99


Sale Price:
USD 16.99
4 Hr AA/AA Smart Charger + 4 AA 2700 mAH Green NiMH Batteries click for more info Item ID #16221
Reg. Price:
USD 38.99


Sale Price:
USD 18.99
Quest Q2 Smart Charger + 8 AAA (1200 mAh) NiMH Batteries click for more info Item ID #16850
Reg. Price:
USD 29.99


Sale Price:
USD 18.29
Quest Q2 Smart Charger + 4 AAA 1100 mAh NiMH Acculoop-X Batteries (Low Discharge) click for more info Item ID #18882
Reg. Price:
USD 35.99


Sale Price:
USD 23.99
Quest Q2 Smart Charger + 4 AA 2900 mAh NiMH Accupower Batteries click for more info Item ID #18851
Reg. Price:
USD 149.99


Sale Price:
USD 79.99
16 Bay AA / AAA LCD Battery Charger + 32 AAA 750 mAh Rayovac NiMH Batteries click for more info Item ID #19627
Reg. Price:
USD 160.99


Sale Price:
USD 98.99
16 Bay AA / AAA LCD Battery Charger + 32 AA 2600 mAh AccuPower NiMH Batteries click for more info Item ID #19624
Reg. Price:
USD 102.99


Sale Price:
USD 64.99
8 AA (2600 mAh) + 8 AAA (1200 mAh) + 4 C (3000 mAh) + 4 D (4000 mAh) AccuPower NiMH Batteries click for more info Item ID #17857
Reg. Price:
USD 155.99


Sale Price:
USD 119.99
8 AA (2600 mAh) + 8 AAA (1100 mAh) + 4 C (4500 mAh) + 4 D (10000 mAh) AccuLoop NiMH Batteries click for more info Item ID #17856