The third review of last packet coming from DealExtreme is 23A battery pack GP. Of all the batteries I bought those are the only brand, GP is a well-known Chinese brand that is highly touted in Brazil. Batteries are 12 volts and are used in car alarms, controel remote electronic gates, among other applications. The battery 23A has a diameter similar to a stack skewer, however, the height is smaller. The blister contains 5 Batteries, and duly sealed with cardboard perforated to facilitate the resale of individual units. I did not test the meter as I did in the other batteries of this package because the batteries are properly sealed and, therefore, I think I need ná. At the rear there are instructions only in Chinese.
The package cost 3,58 USD, which gives a cost of approximately 72 cents por bateria, or about U.S. $ 1,68 the U.S. dollar today, well below the approximately R $ 7,00 such that each battery costs here.