We bought the Energizer CR2450 DL2450 3V lithium coin cell battery in our smoke detectors. The smoke detectors are 3 of the batteries needed. The first smoke detector signaled after about 1 week that the batteries are weak and need to be replaced. Within a short time the other two smoke detectors signaled also that the batteries are too weak. We complained about the batteries then the supplier GWS Powercell but not yet received any response from the supplier (for a week). Neither the batteries nor the supplier, we can recommend.
