Lithium Batteries
Lithium Batteries last on average up to 8x longer than the equivalent alkaline battery, yet they are only around 2 – 3x the price. This makes them excellent candidates for devices with high drain requirements such as camera flashes and door locks. Lithium Batteries continue to provide power well after conventional batteries fail.
Many specialist batteries are lithium in chemistry but this now extends to AA, AAA and 9V batteries.