Can I use rechargeable batteries in a torch that specifies the use of alkaline batteries?
A. The short answer is “NO”, unless recommended by the manufacturer. I am not aware of any that do. Manufacturers do not support the use of batteries other than those listed in the instructions. Normally the lamps and current regulators are designed for a specific type of battery and using other batteries often results in poor performance, either low output or extremely short lamp life, depending on the battery types involved. For example, many LED torches are designed to take advantage of the slow chemical reaction in alkaline batteries which actually regulates the current to the LED. If the alkaline was replaced with a NiMH rechargeable battery which can supply energy at a far greater rate, the LED may burn itself out or become very bright and run for a very short time. I have also read of instances where the extra heat generated actually began to melt the reflector. I have found contrary advice (not from torch manufacturers) but the suggested circumstances are very restrictive and c
