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Title: Junk
Review: These batteries last less than half as long as brand name ones. In addition, they caused serious problems with my equipment. I used them with a Sonosax microphone preamp (a $1200 piece of equipment.) When they started to die I got a high pitched loud noise that ruined several recordings and the preamp clipped. This never happened with any other battery. They must be real junk to cause the preamp to clip when they die - as soon as I put a new pair, the noise disappeared, only to return after 2 hours, when the battery indicator showed "low" (they are supposed to last 5 hours on that preamp.) Dangerous junk is what they are.
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