You get what you compensate for, I'll pass
I am a professional photographer and carry a lot of AA batteries, needed
something to coordinate my batteries in a manageable way. I found these at
a reasonable price, so I decisive to give it a try.
Plastic battery storage unit
AA / AAA 4 Cell Battery Storage Case Bundle of Six Cases: This AA-battery case may hold up to 4 AA-batteries, and it holds AAA batteries as well. It is made of see-through plastic, it is light-weight,it appears to be durable, and it has an attached cover. The unit is perfective for carrying charged batteries in my camera case, plus it may hold discharged batteries as well. I marked one of the cases to store the discharged ones. I would not hesitate to buy this item again.