Liquid detection inside a battery tray to avoid battery malfunction

A vehicle battery safety sensor system providing liquid detection inside a battery pack, comprising:

• a frame having four side walls connected to a bottom wall;
• a plurality of cross beams extending from an opposite two of the four side walls to define battery cell bays for storing batteries;
• a battery pack having multiple batteries, wherein each of the battery cell bays has at least one battery disposed therein positioned between the successive cross beams;
• a first moisture sensor mounted to a first one of the cross beams, the first moisture sensor positioned proximate to a low point area of the battery cell bay, the first moisture sensor configured to sense an operating condition within the low point area of the battery cell bay;
• a second moisture sensor mounted to the first one of the cross beams and elevated above the first moisture sensor, the second moisture sensor configured to sense an operating condition above the low point area of the battery cell bay;
• a safety module processing signals received from the first moisture sensor and the second moisture sensor and identifying if an operating condition within the low point area of the battery cell bay defines a liquid present in the battery cell bay;
• and
• wherein, when a relative humidity difference indicated by a first signal from the first moisture sensor differing from a second signal from the second moisture sensor exceeds a first threshold, and when a relative humidity indicated by the first signal from the first moisture sensor is higher than a second threshold, the operating condition in the battery cell bay is defined as a liquid present in the battery cell bay.