DIY Split Phase Battery Backup for Home – Step by Step June 26, 2023 Geraldine DIY Solar Power Systems Home » DIY Solar Power Systems » DIY Split Phase Battery Backup for Home – Step by Step DIY Solar DIY home battery backup 120/240V split phase step by step. Using Victron Multiplus-II and SOK 48V Server Rack batteries. Credit Projects With Everyday Dave PLease support our Sponsors - Or Buy an Item from our Catalog