Starting power (EN)
Battery starting power measured according to EN standard. According to this standard, the starting power is the maximum power that a battery at an electrolyte temperature of -18 °C can produce for 30 s without the voltage dropping below a certain level (for standard 12 V batteries - not lower than 7.2 V). The term “starting” appeared because this mode of operation is similar to starting an engine, when the battery has to supply high power power to the starter for a short time.
The recommended starting power value is generally related to the weight category of the machine: the heavier it is, the more powerful the power is usually needed to start. And many manufacturers directly indicate recommended values in the characteristics of a particular vehicle model. If the battery is purchased as a replacement, then the general rule is this: its starting power should be no less than that of its predecessor.
Note that in practice there may be designations for starting power according to 3 more standards: SAE (USA), DIN (Germany) and TU (GOST 959-91). The first is almost identical to EN, and DIN and TU are quite easy to convert to EN and vice versa: they are similar to each other, and each of them gives a number approximately 1.7 times smaller than NE. That is, for example, to replace a 200 A battery according to the specifications, you should look for a model with a power of at least 340 A (200 * 1.7) according to EN.
