Growatt 3kW Stackable Off-Grid Inverter | SPF 3000TL LVM-48P 48 V battery | 80 A MPPT | Pure-sine output | Parallel up to 6 units Unlock clean, reliable power for cabins, RVs, tiny homes, or whole-house backup with the Growatt SPF 3000TL LVM-48P. This all-in-one off-grid inverter combines a high-frequency pure-sine inverter, an 80 A MPPT solar charge controller, and UPS-grade transfer switching in a single compact chassis—ready to stack for true 120/240 V split-phase or scalable to 18 kW in parallel. Installer-approved advantages 3,000 W continuous / 6,000 W surge keeps essential loads running smoothly. Wide PV window (60-115 VDC, 4,500 W max) lets you string up to 145 VOC without combiner loss. High-current 80 A MPPT squeezes every watt from your array while safeguarding battery life. 48 V battery platform pairs effortlessly with today’s popular LiFePO4 rack batteries or sealed lead-acid banks. Stackable design: run two in split-phase for 120/240 V or parallel up to six (18 kW) for larger off-grid systems. UPS-grade transfer (