Y&H 12kW All-in-one solar charge inverter – Combines solar power, battery storage, and grid electricity for uninterrupted power supply. Supports 120V/240V split-phase output (L1-L2: 208V/240V, L1-N/L2-N: 120V), 500V max PV input with dual MPPT trackers (99.9% efficiency) ideal for home and off-grid applications. with Lead-Acid & Lithium Batteries – Supports GEL/SLD/FLD lead-acid and LFP/NCM lithium batteries (BMS communication via RS485/CAN). 4 charging modes: Solar Only, Utility Priority, Solar Priority, and Hybrid (PV + Grid). 220A max charging current for fast battery replenishment. Parallel Operation (Up to 6 Units) – Expandable system for higher power needs. Anti-feed-in CT detection ensures no backflow to the grid (self-consumption mode). Time-based charging/discharging for energy cost optimization. Wi-F i/RS485 monitoring for remote control via app. UL1741 Certified – Meets US safety standards. Full protection suite: Overload, short-circuit, over-temperature, and reverse polarity protection. Low battery recovery (52V) and over-discharge cutoff (42V) to extend battery life. Pure sine wave output for sensitive electronics. Smart Time-Based Control – Set 3 customizable periods for charging/discharging to maximize solar usage and reduce electricity bills. Automatically switches between grid/battery power during peak/off-peak hours while protecting battery lifespan. Easy Setup & Versatile Use – Includes ring terminals, expansion bolts, and pre-drilled mounting holes. Suitable for homes, RVs, and small businesses. Wide operating range (-10°C to 55°C) with intelligent cooling fans. No battery mode allows direct PV-to-load power (solar + grid hybrid).for optimal solar harvesting. Product Features 1. It has the function of sectional charge and discharge (can set the time period for battery charging or discharging). 2、 Allowing access of lead-acid battery and lithium battery. 3. Anti feed-in, self-consumption function (can be hybrid power supply from solar, battery and grid). 4、 It can be used without battery. Solar and utility grid can power loads at the same time. 5. With dual activation function of lithium battery. It can be triggered by any power supply of the mains or solar (when the li-ion battery was dormant). 6. Power saving mode available to reduce no-load loss. 7. Available in four charging modes: Only Solar, Mains Priority, Solar Priority and Mains & Solar hybrid charging. 8、 Two output modes: mains bypass and inverter output; Uninterrupted power supply. 9. Complete protections, including over voltage and under voltage protection, overload protection, reverse protection, etc. 360° all-round protection with a number of protection functions. 10. With touch resistance LCD screen dynamic flow diagram design, easy to understand thesystem data and operation status. 11. Full digital voltage and current double closed loop control, advanced SPWM technology, output of pure sine wave; support split-phase and single-phase pure sine wave output; Supports five different voltage levels of 100Vac, 105Vac, 110Vac,120Vac ,127Vac per phase. 12. Supports two independent MPPTs, advanced MPPT technology with a tracking efficiency of 99.9%.