The Marinco ChargePro On-Board Battery Charger is a high-quality charger designed for gel batteries with a capacity of 10 Ah and a voltage of 24 V. It is a reliable and efficient charger that can be used for a variety of applications. The charger is manufactured by Marinco, a well-known brand in the battery industry. The ChargePro is an on-board charger, meaning it can be installed directly onto a boat or other vehicle.