• ch00f@lemmy.world
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      1 day ago

      The current a battery can accept/provide tends to scale with the size of the battery. So rather than measuring it in Amperes, it’s usually measured in C. 1C means that the battery will be full charged or discharged in 1 hour. 4C means it’ll be charged in 1/4 hour. The charge rating tends to be lower than the discharge rating though it depends on the cell.

      Basically, you take the battery capacity and divide it by the charge rate. If you exceed the C rating of the battery, it could cause it to overheat or even catch fire.

      When it comes to higher performance requirements (like in drones), you can get insanely high C rates like this though those batteries aren’t typically designed to survive too many charge/discharge cycles.