Good Housekeeping UK has been quoted as saying that you shouldn use rechargables in smoke alarms is this correct?
Good Housekeeping rationale: “when rechargeable batteries run out of power, they do so very quickly, whereas disposable alkaline batteries tend to ‘die’ slowly. This means you won’t get the warning beeps that tell you when the battery in your smoke alarm needs changing if you use rechargeables.” Due to its safety nature, the smoke alarm is not an ideal device for standard rechargeable batteries. Indeed standard rechargeable batteries discharge with time, and this means that for essential safety devices such as a smoke alarm, it is not recommended. We also need to remember that even if disposable batteries are used in smoke alarms, it is highly recommended to change the battery a minimum of once a year.