Building of a Low-Cost Wireless Battery Analyzer

This paper presents the design methodology, implementation and testing of a low cost wireless battery analyzer. The initial goal of this project is to build a battery analyzer to enable the remote monitoring of a 24V backup battery installed in a submarine. The implemented battery analyzer is microcontroller-based, incorporates features to sense and monitor the battery voltage level, discharge current and the surrounding ambient temperature. Each of the sensing signals is converted and stored as 10 bits stream. The data values are reported to the crew via the screen of a laptop/PC over a Bluetooth wireless communication link. Alarm will be triggered whenever the battery voltage level, current and/or ambient temperature fall out of preset allowable limits.