Abstract: The invention relates to a battery monitoring device. In particular, the invention relates to a battery monitoring device which may be easily associated with a battery in order to monitor a number of the battery's physical characteristics. The battery monitoring device may comprise an electrolyte level sensor, a temperature sensor, a voltage sensor, and a wireless communications unit. A unit integrated as the present invention can monitor the electrolyte levels, the temperature, and the voltage of a battery. In the event of a potentially damaging battery condition, the wireless communications unit may send a notification to a remote device, such as a battery controller, a computer, a smart phone, or tablet.