Myers Model MBSP-2 (battery backup) and MBSP-2C (primary+backup combo) Myers CLASSIC Smart Battery Backup Systems - The Myers Smart Battery Backup Sump Pump System will help protect the basement from water damage by kicking into action during power outages or primary sump pump failures. Most home buyers don’t think about their sump pump, but when the consequences of unexpected pump failures are understood, the solution from Myers will assist them in making the right decision. The CLASSIC version is available in backup-only (MBSP-2) or a pre-plumbed primary+backup system (MBSP-2C). Both offer smart charging technology and dual battery capacity. In addition to the CLASSIC series, the PREMIUM series is available in backup-only (MBSP-3) or a pre-plumbed primary+backup system (MBSP-3C). Both offer remote monitoring through our Virutal Water Assistant, smart charging technology, and dual battery capacity.