Low self-discharge NiMH batteries
My frustration with NiMH rechargeable batteries had gotten to the point where I had gone back to alkalines on things like my GPS, flashlights, cameras, etc. The problem was that I used them so infrequently that when I did need them they were dead or close to it.
I was looking around for a solution that I could keep NiMH batteries trickle-charged so they would be ready in case of a power outage or just an outing with the camera or GPS. My other thought was to have something that I could charge with a portable solar array while in the field.
I discovered that there was a product developed by Sanyo called the Eneroop battery which solved the issue. They guarantee that the battery will not self discharge more than 35% in a year. Some of the standard NiMH batteries I have been using seem to discharge about 50% in a month and are dead shortly after that. These newer NiMH batteries come out of the package nearly fully charged and are being made by other manufacturers now.
There was a guy on one of the flashlight forums that tested a set. He was able to see 40 minutes of runtime on a fully charged set and 36 minutes after letting them sit for a year. Pretty impressive so I picked up a couple sets and a charger to give them a try.
Has anyone else had experience with these?
"The sword is more important than the shield, and skill is more important than either. The final weapon is the brain. All else is supplemental." John Steinbeck
Bookmarks