Ritar 12v 40ah Sealed Lead-Acid Battery (Model Dc12-40 or Ra12-40).

It is a maintenance-free, valve-regulated battery designed for deep discharge applications. It is suitable for use in solar energy systems, UPS (uninterruptible power supply), telecommunications, and emergency lighting. The battery is made in Vietnam and weighs approximately 12.4 kg. It has a long lifespan, potentially up to 10 years, and is spill-proof. The battery is available for purchase from various online retailers specializing in power solutions and solar products