1. CCA: Cold start current amperage, which is a standard established by the International Battery Association. It measures the maximum current value that a battery can output at a specific low temperature (usually 0 ℉ or -18 ℃).
2. DIN: German standard that specifies the amperage that a battery should be able to reach at a cold temperature of 0 ℉ (-18 ℃) and maintain a certain voltage level for a specific period of time.
3. IEC: International Electrotechnical Association standard, which specifies the minimum voltage and duration that a battery should be able to maintain after cooling and soaking in an environment of 0 ℉ (-18 ℃) at a specific current intensity.
4. BSR and BCI: Standards developed by the British and International Battery Associations, respectively, both focus on the voltage performance and duration of batteries in a cooled state.
Next, let’s talk about the specifications of electric vehicle batteries. At present, the nominal voltage of a single electric vehicle battery is mainly divided into two types: 12V and 16V. After combination, various nominal voltage specifications such as 36V, 48V, 60V, 64V, 72V, and 80V can be obtained. National standard electric vehicle batteries typically use specific voltage and capacity combinations, such as 36V12AH, 48V20AH, etc.
In addition, the model of the battery also contains rich information. For example, the DZM series batteries commonly used in electric assisted vehicles usually have numbers in their models representing the specifications and capacity of the battery. Taking 6-DZM-20 as an example, 6 represents the number of battery cells connected in series, DZM represents the sealed battery suitable for electric bicycles, and 20 represents its 2-hour rated capacity of 20Ah.
Finally, let’s take a look at the national standards for lead-acid batteries. Lead acid batteries for electric road vehicles follow the national standard GB/T 18332.1-2001, which specifies the requirements, test methods, inspection rules, packaging and transportation of batteries in detail. It is applicable to lead-acid batteries with a rated voltage of 12V.
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