Speaking of Trustfire chargers, I have had 3 of them, the first one died on me, the second had a really loud buzzing noise so i got another and it also has a buzzing noise....also i can spin the batts around in the charger and the LCD will go from green to red to green and so on.....is this normal?
Mine does/did that too. With the noise It must be a noisy component. It is a power converter after all, and unless made with the latest and greatest hardware it will make
some noise. Mine also has a high pitched sound that pierces my skull, so I unplug it when not in use. On the lights changing with turning the
batteries, I noticed that straight off on the first charge and cleaned the battery ends and the charger contact areas and it stopped doing that.
One of the best things you can use to clean small
batteries is -- fortunately -- denim fabric. (Bluejeans) Just rub the top and bottom vigorously on yer pant-leg for ~5 seconds and it will be sparkly clean. On the charger I used a q-tip with a wee bit of Isopropyl alcohol to remove any manufacturing grease/oil that may have been on the contacts and the lights always stay on now, even when turning the cells. I also flexed the springs a few times to make sure they were free to clamp the cell in place. A tiny amount of some thin oil will ease any sticking. I used a silicone spray as it has excellent dielectric properties. Also avoid touching the battery ends and charger contacts to keep any finger grease from beggaring things.
I am ultra paranoid about keeping the battery ends spotless as that is likely where any spark will originate in an explosive failure. I am probably being overly concerned about such issues, but ya never know right?
Lot of fussing for a cheap gizmo!
