These are the common abbreviations for the battery systems. These are the terms that are universally used and you can also find them in this product catalogue. A round battery (see table) is round and flat. A P is the designation for all batteries that are not round. Many chemical abbreviations may therefore be followed by an F (flat) or a P, in addition to an R.
| B = Lithium carbon monofluoride (low drain) | BR |
| C = Lithium mangaan dioxide (high drain) | CR |
| E = Lithium thionyl chloride | ER |
| F = Lithium iron disulfide | FR |
| G = Lithium Copper oxide | GR |
| K = Cadmium | KR |
| L = Alkaline | LR |
| M = Mercury | MR |
| P = Oxygen | PR |
| S = Silver | SR |
An LR battery is a round alkaline battery. So a flat alkaline battery would become an LF battery and so on.