The GP DESIGN PSR51 is a lead-acid rechargeable battery designed for use in a variety of applications, including solar energy systems and emergency backup power systems. This battery is designed for long life and reliable performance, with the ability to provide reliable power for extended periods of time when properly maintained. The battery’s design includes features that help to limit damage caused by vibration and thermally induced heat, helping to prolong its service life. Its unique, patented “Cell Block Design” allows the battery to be safely discharged and recharged multiple times without any loss of performance. The battery also features a low self-discharge rate, which helps to increase its overall efficiency. This battery is available in two models, the PSR51-12V and the PSR51-24V, both providing an expected service life of 10 years.