The following shows the devices for the battery errors.
• [SM51] Battery low latch
  Turn ON when the voltage of battery reduces to less than 2.5[V].
  Remains ON even if the condition is restored to normal thereafter.
• [SM52] Battery low
  Turn ON when the voltage of battery reduces to less than 2.5[V].
  Turn OFF when the voltage of external battery returns to normal.
• [SM58] Battery low warning latch
  Turn ON when the voltage of battery reduces to less than 2.7[V].
  Remains ON even if the condition is restored to normal thereafter.
• [SM59] Battery low warning
  Turn ON when the voltage of battery reduces to less than 2.7[V].
  Turn OFF when the voltage of external battery returns to normal.