Bin 3 years HG-carrier and used previously Rayovac batteries. This thought usually just over 2 weeks. The Duracell batteries last contrast, just 1 week I had already which thereby, the only Five days held. Will therefore revert to Rajovac upon exhaustion (a larger depleted Duracell).
PS: NB after reading the other, mostly very good reviews - is completely incomprehensible to me and I find myself wondering, as if not one or the other fake case was (???).