I was wondering: How many batteries should I store for all my radios, flashlights, smoke detectors, and so forth? I’m also planning to get night vision goggles, soon. I assume rechargeables, right? If so, what kind [of rechargeables], and who has the best prices? – T.E. in Memphis.
JWR Replies: I recommend buying mainly nickel metal hydride (NiMH) batteries. Stock up plenty of them, including some extras for barter and charity. Unlike the older Nickel Cadmium (NiCd) technology, NiMHs do not have a “memory” effect. (The diminished capacity because of the memory effect has always been one of the greatest drawbacks to NiCds batteries.) The best of the breed are the latest Low Self Discharge (LSD) variants, such as the Sanyo Eneloop.
One discount supplier with a very good selection that I can enthusiastically recommend is All-Battery.com. They also have great prices on “throw away” batteries, such a lithium CR-123s.