Introduction: AA Battery Organizer

After years of chaos storing my rechargeable AA batteries, I realized I had to upgrade to a better storage system, and this is what I came up with.

The idea with this instructable is more to give you an idea for battery storage than to give you precise instructions for copying this one, although you are of course free to do so. Any piece of wood with 32 holes for batteries drilled into it will probably do much the same job.

Step 1: Features

The battery holder can accommodate four pairs of charged and four pairs of discharged batteries, in total 32 batteries.

When you remove a depleted battery from a device, it goes to the red section of the organizer, ready to be charged. After charging, it goes to the green section, ready to be used again. This way the batteries not only get stored neatly, but you also keep track of the charged and discharged ones.

Thanks to the handle, the unit is also extremely portable.

The only somewhat sophisticated feature the unit has, is that all the batteries rest on contacts (first photo) connected to a common measuring point (second photo), which means you can measure the charge of the individual batteries without removing them from the unit (third photo).

Step 2: General Construction Details

The total size of the unit is 225 mm in length, 95 mm wide, and 40 mm high, without the handle. The diameter of the holes for the batteries is 15 mm, and the distance between the centre points of the batteries is 20 mm.

I used two pieces of 16 mm chipboard for the upper and lower decks to ease construction, and also maintenance if necessary. The two decks also prevent dirt accumulating on the bottom of the battery wells. The lower deck is fixed to the upper deck with four wood screws from underneath. Note the two 6 mm nuts used with each screw as spacers between the decks (second photo).

Step 3: More Details

For the contacts I used common 2 mm thick 30 mm long nails (first photo), which were cut to a length of about 16 mm (second photo).

They were fixed into the bottom of each battery well through 2.5 mm holes drilled through the bottom deck. Their protruding ends were then soldered to wires (third photo), which eventually connect them all to the common measuring terminal (fourth and fifth photos).

I recessed the wires and solder joints on the bottom of the unit for a better appearance, but is probably not necessary. One can just use higher feet to raise the unit a bit, which should provide enough room for the wiring.

Step 4: Other Battery Sizes

Of course you can build similar units for other sizes of batteries. On the photo is one I built for AAA batteries. This one is just a storing unit because I don't use this size of battery as often as the AA's, and I also was a bit too lazy to go to more trouble.

Thanks for looking!

Comments

author
mxx (author)2017-02-15

Thanks for the tip!

author
apontecorvi (author)2016-04-28

Simple and ingenious ? ? ?

author
mxx (author)apontecorvi2016-04-29

Thanks, apontecorvi!

author
maria_AI (author)2016-01-17

awesome idea :)

author
mxx (author)maria_AI2016-01-17

Thanks, maria_Al !

author
dangardiner (author)2015-04-14

You sank my battleship!

author
MikB (author)dangardiner2015-04-18

My first thought too :)

What was the move though? AA to U2? :)

@mxx maybe you're not old enough to remember MB games "Battleships"

http://www.donsgamecloset.com/electronicbattleship...

author
mxx (author)MikB2015-04-20

Sadly, I think I'm too old... But thanks for enlightening me!

author
mxx (author)dangardiner2015-04-17

!!

author
aschulze (author)dangardiner2015-04-17

haha My thiought also

author
paul dito (author)2015-04-20

Simple genius! Thanks! I have two plastic beer cups (from Giants baseball games) full of rechargables. I often get the charged/uncharged mixed up (nothing to do with the beer of course!). Off to the drill press, picture to follow, thanks!

author
mxx (author)paul dito2015-04-20

Glad you like the design. Looking forward to your picture!

author
hats9994 (author)2015-04-14

this is an amazing idea, I may build one

author
mxx (author)hats99942015-04-14

Thank you, hats9994. Yes, by all means build one!

author
doo da do (author)2015-04-13

Niceidea

author
mxx (author)doo da do2015-04-14

Thank you, doo da do!

author
BeachsideHank (author)2015-04-12

This is an original idea and cleverly done, IT SHOULD BE FEATURED!

I can use this for my AA alkaline batteries that I dump a charge into- although technically you shouldn't, I'm cheap and like to get one last ride out of them.

author
mxx (author)BeachsideHank2015-04-13

BeachsideHank, thanks for the comment! I must try the alkaline trick myself.

author
tomatoskins (author)2015-04-13

I love the idea of this! Nothing better than being able to easily measure the voltage of your batteries in a conivieniet way!

author
mxx (author)tomatoskins2015-04-13

tomatoskins, thanks for your comment!

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