In Switzerland as of 2008, C batteries totalled 5.4 % of primary battery sales and 3.4 % of secondary battery sales.
22.
Formerly, discarded zinc air primary batteries were dropped into the water around buoys, which allowed mercury to escape into the environment.
23.
Occasionally the design is also used for primary ( non-rechargeable ) batteries, although most primary batteries use the conventional rod-paste-tube design.
24.
Initially this process used electricity from primary batteries; when generators became available after 1870, the cost of production of batteries greatly declined.
25.
Primary batteries make up about 90 % of the $ 50 billion battery market, but secondary batteries have been gaining market share.
26.
Due to their high pollutant content compared to their small energy content, the primary battery is considered a wasteful, environmentally unfriendly technology.
27.
An extra battery is not a bad idea either, in case your primary battery for some reason fails to run its full time.
28.
An AA battery is composed of a single electrochemical cell that may be either a primary battery ( disposable ) or a rechargeable battery.
29.
The battery nomenclature is defined by the International Electrotechnical Commission ( IEC ) in its 60086-3 standard ( Primary batteries, part 3 Watch batteries ).
30.
Silver-oxide primary batteries account for over 20 % of all primary battery sales in Japan ( 67, 000 out of 232, 000 in September 2012 ).
