Review on HiQuick 9V Rechargeable Batteries: 4 Pack, High Capacity 280mAh Ni-MH, Low Self-Discharge for Smoke Alarm Detectors by Negil Dunnigan

I have bought 2 (total 8) orders of these 9v batteries. They came preinstalled. I started using it and of course the charge didn't last long. As far as I know they are not fully charged. So I charged them overnight. Only lasted less than an hour. Got them recharged. The same thing. These batteries do not hold a charge as advertised. Basically useless. Hopefully it was the fool of the bunch. But no. They are ALL not fully charged. My charger even has flashing red lights indicating a problem. These are NEW batteries! Shouldn't you do that. I tried charging several times before writing this review. No change other than my window to return them closed. I have better old batteries in my arsenal than these. I can understand that one out of eight batteries failed. But that's ALL. you have been warned Try other brands.