I'm wondering if anyone has constructed or used a CR123A 4-battery holder? I've seen very good discussions for CR123A performance here, and would like to find a lightweight (plastic if possible, but aluminum or other lightweight metal is fine) battery holder if possible. Ultimately I need to wire 3 sets of 4 in parallel for my application (military, so it also has to be "rugged enough" so that you can drop it and the batteries stay in).
@The_Driver - I did a comparison of battery dimensions - the 18650 is 18.3 x 65 mm, and the CR123A is 17 mm x 34.5 mm. I'm assuming I would put 2 CR123A batteries into 1 18650 slot (i.e. I would want a 2X 18650 battery holder for 4 batteries)? Have you ever tried this before - will the spring "give" the extra 4 mm to fit? Does the smaller diameter of the CR123s make it more likely for them to fall out? Is there a preferred way to hold them in (velcro straps or the like)?
Sorry for the bombardment of questions - just trying to figure out if I'm going to order these and need to experiment, or if you have experience doing this and know for sure it will work. They make it difficult for us to purchase things at my company, so I'm trying to make sure I order parts that are likely to work the first time.