What is the best way to charge my Centennial Deep Cycle Battery?

Be sure the amps, the voltage, and the type of charger match the battery that you are charging. Never overcharge your battery. This can lead to water loss and grid corrosion that can greatly reduce the life of the battery. A charger with an automatic timer is a great idea. Never "fast charge" or "boost" a deep cycle battery. A slow charge is always best. Follow the instructions, safety manual, and procedural recommendations on the charger. Select a charger with a capacity sufficient to fully recharge the battery within 8 - 12hours. Charging tip: Recharge your battery as soon as possible after use. Allowing it to sit for several days will hamper its recharge acceptance and ultimately, its performance.