function. The most common power source for

Posted by shiekh shazia on July 28th, 2016

function. The most common power source for flashlights is the battery. Primary (disposable) battery types used in flashlights include button cells, carbon-zinc batteries in both regular and heavy duty types, alkaline, and lithium. Secondary, rechargeable, types include lead acid batteries,

http://www.dermayouth.org/which-tactical-flashlight-to-choose

NiMH, NiCd batteries and lithium ion batteries. The choice of batteries will play a determining role in the size, weight, run time, and shape of the flashlight. Flashlight users may prefer a common battery type to simplify replacement. Primary cells are most economical for infrequent use. Some types of lithium primary cell can be stored for years with less risk of leakage compared with zinc-type batteries. Long storage life is useful 

http://www.dermayouth.org/which-tactical-flashlight-to-choose