Black Diamond AAA Rechargeable Battery 4 Pack

Great batteries, but....

These batteries work great. Plus the whole concept of a rechargeable headlamp is awesome. Especially in conjunction with a solar recharger. But it is a little silly to make us buy four when we can only use three. Especially considering you shouldn't just trash batteries into your local landfill.

very good batteries and a great way to reduce carbon footprint

I've used a lot of NiMH rechargeable batteries (and NiCad before) as well as other types of rechargeable batteries. Rechargeables make a great deal of sense on an expedition. When combined with a solar roll or panel set up, weight and bulk can be reduced, over time money will be saved by not buying throw-away batteries (and packing so many more of them in as well as out as trash), and this is a good way to reduce carbon footprint. Reuse, repurpose, recycle, and all that great stuff. There a...re a number of 1000ma AAA batteries available, and even a few 1,100ma ones, but the consumer needs to carefully read labels as often this information is not readily apparent on packaging or on the batteries. It is often in VERY small print, and many batteries are far less than 1000ma. I've noted 300ma rated AAA on the market in a couple of places. An un-cautious consumer might be thinking he or she was saving a lot of money and buying smart, until the very short battery life became apparent. These batteries from Black Diamond have proved very durable for the past 2 winters. As I live in Alaska and we have a lot of darkness in the winters, not to mention cold, my batteries and lightening systems get a workout. The one curious thing that I have noticed with these batteries, is that they do tend to self-discharge a little faster than most that I have used, so beware if they have been left unused for a few weeks in your avy beacon or gps. By the way, ANY new NiMH battery should be fully charged before use out of the package if you want to maximize battery life. Nickel-Metal Hydrate batteries produce 1.2 volts at full charge rather than 1.5 volts. Despite some manufacturers claims, this does not seem to matter on the majority of electronics that I used them in, but occasionally you will find the battery life will be reduced on some types of gadgets that might be more voltage sensitive. Black Diamond: On your webpage, the packaging photo for this item is clearly visible and you can read the Milli-ampere-hour rating on the package, but you should post this number under specifications as well.