{"id":270,"date":"2009-01-24T19:24:16","date_gmt":"2009-01-24T19:24:16","guid":{"rendered":"https:\/\/www.garfnet.org.uk\/cms\/battery-formulation-iec-codes\/"},"modified":"2026-09-09T04:35:10","modified_gmt":"2026-09-09T04:35:10","slug":"battery-formulation-iec-codes","status":"publish","type":"page","link":"https:\/\/garfnet.org.uk\/cms\/tables\/general\/battery-formulation-iec-codes\/","title":{"rendered":"Battery formulation – IEC codes"},"content":{"rendered":"

The open circuit voltage and the capacity of  battery depends on what its made of, i.e. its formulation. This table lists the various formulations and the IEC letter used to indicate them, as mentioned in the Batteries \u2013 button cell equivalents<\/a> and Batteries \u2013 dry & alkaline international equivalents<\/a> tables.<\/strong><\/p>\n

Letter Code<\/span><\/a><\/div><\/th>
Positive Electrode<\/span><\/a><\/div><\/th>
Electrolyte Type<\/span><\/a><\/div><\/th>
Negative Electrode<\/span><\/a><\/div><\/th>
Nominal Voltage<\/span><\/a><\/div><\/th>
Actual Voltage<\/span><\/a><\/div><\/th>
Formulation Name<\/span><\/a><\/div><\/th><\/tr><\/thead>
none<\/div><\/td>
Manganese dioxide<\/div><\/td>
Ammonium chloride, Zinc chloride<\/div><\/td>
Zinc<\/div><\/td>
1.5<\/div><\/td>
1.725<\/div><\/td>
Zinc-carbon battery <\/div><\/td><\/tr>
A<\/div><\/td>
Oxygen<\/div><\/td>
Ammonium chloride, Zinc chloride<\/div><\/td>
Zinc<\/div><\/td>
1.4<\/div><\/td>
1.55<\/div><\/td>
Zinc-air battery <\/div><\/td><\/tr>
B<\/div><\/td>
Carbon monofluoride<\/div><\/td>
Organic electrolyte<\/div><\/td>
Lithium<\/div><\/td>
3<\/div><\/td>
3.7<\/div><\/td>
Lithium battery <\/div><\/td><\/tr>
C<\/div><\/td>
Manganese dioxide<\/div><\/td>
Organic electrolyte<\/div><\/td>
Lithium<\/div><\/td>
3<\/div><\/td>
3.7<\/div><\/td>
Lithium battery <\/div><\/td><\/tr>
E<\/div><\/td>
Thionyl chloride<\/div><\/td>
Non-aqueous inorganic electrolyte<\/div><\/td>
Lithium<\/div><\/td>
3.6<\/div><\/td>
3.9<\/div><\/td>
Lithium battery <\/div><\/td><\/tr>
F<\/div><\/td>
Iron disulphide<\/div><\/td>
Organic electrolyte<\/div><\/td>
Lithium<\/div><\/td>
1.5<\/div><\/td>
1.83<\/div><\/td>
Lithium battery <\/div><\/td><\/tr>
G<\/div><\/td>
Copper(II) oxide<\/div><\/td>
Organic electrolyte<\/div><\/td>
Lithium<\/div><\/td>
1.5<\/div><\/td>
2.3<\/div><\/td>
Lithium battery <\/div><\/td><\/tr>
L<\/div><\/td>
Manganese dioxide<\/div><\/td>
Alkali metal hydroxide<\/div><\/td>
Zinc<\/div><\/td>
1.5<\/div><\/td>
1.65<\/div><\/td>
Alkaline battery <\/div><\/td><\/tr>
M withdrawn<\/div><\/td>
Mercuric oxide<\/div><\/td>
Alkali metal hydroxide<\/div><\/td>
Zinc<\/div><\/td>
1.35<\/div><\/td>
<\/div><\/td>
Mercury battery <\/div><\/td><\/tr>
N withdrawn<\/div><\/td>
Mercuric oxide, manganese dioxide<\/div><\/td>
Alkali metal hydroxide<\/div><\/td>
Zinc<\/div><\/td>
1.4<\/div><\/td>
<\/div><\/td>
Mercury battery <\/div><\/td><\/tr>
P<\/div><\/td>
Oxygen<\/div><\/td>
Alkali metal hydroxide<\/div><\/td>
Zinc<\/div><\/td>
1.4<\/div><\/td>
1.68<\/div><\/td>
Zinc-air battery <\/div><\/td><\/tr>
S<\/div><\/td>
Silver oxide<\/div><\/td>
Alkali metal hydroxide<\/div><\/td>
Zinc<\/div><\/td>
1.55<\/div><\/td>
1.63<\/div><\/td>
Silver-oxide battery <\/div><\/td><\/tr>
Z<\/div><\/td>
Manganese dioxide, nickel oxyhydroxide<\/div><\/td>
Alkali metal hydroxide<\/div><\/td>
Zinc<\/div><\/td>
1.5<\/div><\/td>
1.78<\/div><\/td>
Nickel oxyhydroxide battery<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
\n

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The open circuit voltage and the capacity of  battery depends on what its made of, i.e. its formulation. This table lists the various formulations and the IEC letter used to indicate them, as mentioned in the Batteries \u2013 button cell equivalents and Batteries \u2013 dry & alkaline international equivalents tables. Home | Tables | General<\/p>\n","protected":false},"author":1,"featured_media":44732,"parent":646,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"_kad_post_transparent":"default","_kad_post_title":"default","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-270","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nBattery formulation - IEC codes - GarfNet<\/title>\n<meta name=\"description\" content=\"This table lists the various commonly-used battery formulations and the IEC code letter used to indicate them.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/garfnet.org.uk\/cms\/tables\/general\/battery-formulation-iec-codes\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Battery formulation - 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