5.12kWh Solar Backup: MidNite Solar MNPowerflo5 LiFePO4 Battery + 6.5kW Phocos Any-Grid Hybrid Inverter - ESS Kit

This kit includes the primary components listed below. Additional wiring, mounting hardware, or balance-of-system equipment may be required depending on your installation requirements. Contact our team for a personalized equipment review and custom add-on pricing.

The 5.12kWh Solar Backup: MidNite Solar MNPowerflo5 LiFePO4 Battery 6.5kW Phocos Any-Grid Hybrid Inverter ESS Kit is a pre-engineered solar battery backup system that pairs a 5.12kWh rack-mount LiFePO4 battery with a 6,500W hybrid inverter — both selected and verified for 48V compatibility. Rather than sourcing and cross-referencing components individually, this ESS kit gives residential and light commercial buyers a single, pre-matched 48V energy storage solution ready for backup power, solar self-consumption, or off-grid operation.

What's included

• MidNite Solar MNPowerflo5 — 5.12kWh, 51.2V, 100Ah LiFePO4 server rack battery; rack-mount form factor
• Phocos PSW-H-6.5KW-120/48V — 6,500W single-phase hybrid inverter/charger, 120Vac pure sine wave output

One purchase, one verified system

Building an energy storage system from separate components means hours of cross-referencing voltage windows, charge rate tolerances, and communication protocols — with no guarantee the pieces will actually work together. This kit eliminates that research burden. The MNPowerflo5 and the Phocos PSW-H-6.5KW-120/48V share a common 48V architecture; the MNPowerflo5's PYLON-protocol CAN/RS485 interface is compatible with the Phocos inverter's CAN Bus and RS-485 ports, enabling the inverter to read battery state of charge from the BMS and coordinate charge cycles during commissioning — without the need to source and pair components from separate suppliers.

Who this kit fits

• Whole-home partial backup — powers refrigerators, lights, fans, and small appliances through a grid outage without a transfer switch overhaul
• Solar self-consumption — pair with a rooftop or ground-mount PV array across the dual MPPT inputs to reduce daytime grid draw and store surplus energy for evening use
• Off-grid cabin or workshop — 5.12kWh of storage paired with up to 10,000Wp of PV input (2× 5,000Wp) covers overnight power from a typical day's solar harvest
• Light commercial facility — reliable backup for critical loads: point-of-sale systems, servers, lighting, and communications equipment
• Scalable starting point — add up to 15 additional MNPowerflo5 batteries in parallel, or parallel up to 9 Phocos inverters, as energy needs grow

How the system connects

The MNPowerflo5 connects to the Phocos PSW-H-6.5KW-120/48V's 48V battery terminals and links over CAN or RS485 using PYLON protocol, enabling the inverter to monitor state of charge and manage charging from PV, grid, or generator sources. Solar panels feed into the inverter's dual MPPT inputs (2× 90–230Vdc, up to 5,000Wp each, 250Vdc max OCV per MPPT), which charge the 48V battery bank and simultaneously supply connected loads at 120Vac. When grid or generator power is available, the inverter uses it as a secondary charge source or pass-through for loads during low-solar periods. The 10ms transfer time (UPS mode) keeps connected equipment running through brief outages. Buyers will also need a battery rack enclosure, solar panels and racking, AC/DC overcurrent protection per local electrical code, 2 AWG battery cables with ring terminals, and conduit.

Why choose this solar backup kit?

Where most backup kits use generic lithium cells with short warranties, this pairing uses EVE A grade LiFePO4 cells — the same grade used in electric vehicles — backed by MidNite Solar's industry-leading 10-year warranty and rated for 6,000 cycles at 77°F. The Phocos PSW-H-6.5KW-120/48V adds substantial headroom: dual MPPT inputs accept up to 10,000Wp of PV, a 120A solar charging current is 50% higher than comparable 5kW inverters, and the 13,000VA peak surge handles motor-start loads without derating. For buyers who want a professionally matched ESS without the integration risk, this 5.12kWh Solar Backup kit available through A1 SolarStore delivers a scalable, dual-certified 48V pairing ready for residential and light commercial installations.