When should I charge my 12V deep cycle battery?

Charge your 12V deep cycle battery when its charge level drops to around 50%.

Explanation: Charging a 12V deep cycle battery at or before the 50% depth of discharge (DoD) helps prolong its life and ensures a reliable power supply. Deep cycle batteries, commonly used in applications like RVs, boats, and solar systems, benefit from regular charging to prevent deep discharges, which can lead to sulfation and reduced lifespan. Monitoring the battery voltage or using a battery monitor system can help determine the state of charge and indicate when it’s time to recharge. Regular maintenance charging during periods of inactivity is also advisable to keep the battery in optimal condition.