BattCheck is a free Android app developed by QTC under the Utilities & Tools category. It is designed to monitor the battery systems of 6V, 12V, and 24V in real-time. The app is capable of recording up to 5 batteries, one at a time, providing instant battery capacity, status, and charging records.

One of the most useful features of BattCheck is its ability to give early warning alerts. The app rings and vibrates on the smartphone when the voltage is too low or the charging voltage is too high. This helps users to avoid overcharging and undercharging of their batteries, which can cause long-term damage to the battery life.

Overall, BattCheck is an efficient and easy-to-use app for battery monitoring that provides accurate real-time data and alerts to help users maintain their battery health.