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Q. What is the maximum amperage rating of the LM2S?A. The max stall current of a LM-2 is 2.0 amps. The continuous running current should be less than 1.0 amp. The LM-2 motor output is short circuit, overload, and module over temperature protected. So if you connect a motor that is too big for it to drive it will turn off and report one of the above faults.