When at all possible, I try to get everything in AA size. This allows for easier logistics, battery maintenance, and overall group standard.
Historically, there were some items (like high-powered flashlights) that may do better with other options, such as CR123’s – but this is not always the case. If there is a product line you prefer, chances are there is a AA option.
For example, I really like the Fenix E21 flashlight – 150 lumens, sturdy construction, waterproof and you guessed it, takes AA’s.
This also goes over to weapon optics, the EOTech 512 Holographic Sight takes AA’s, as well as the Aimpoint Comp M4:
You could easily make a small solar charging station to take care of just your AA needs, and never be without. Take a look at the Sanyo Eneloop line of rechargeable batteries – they seem to be made with the prepper in mind. One note to keep in mind, price seems to vary considerably – even on Amazon – so do your homework.
Eneloop’s can also be found here:
Eneloop SEC-MQN064N 4-Position Charger With 4 AA eneloop Batteries
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