Growatt APX 5.0P-S0-US 5.0kWh-30Kwh Battery Module

✅ In stock — ships in 1–2 business days from our US warehouse, or pick up in Las Vegas, NV.
✅ UL 9540 certified and UL 9540A tested — the energy-storage safety listings US inspectors and utilities look for.

⚠️ Power module required, sold separately. Every APX system needs one APX 55042-P0-US Power Module + Base ($899.99), which carries the battery management and DC-DC stage. You need one power module per stack, whatever its size; the prices below are for the battery modules only.

Growatt APX high-voltage LiFePO4 battery, 5 kWh to 30 kWh

The stackable high-voltage battery for Growatt's MIN XH-US and SPH hybrid inverters. Each APX 5.0P module holds 5 kWh (4.5 kWh usable) of cobalt-free lithium iron phosphate cells. A complete system is one power module on top with one to six battery modules stacked under it, so a home starts at 5 kWh and grows to 30 kWh by adding modules. Choose the total battery capacity from the options above, and add one power module to your cart.

Price by size (battery modules only — add one power module, $899.99):

• 5 kWh (1 module): $1,659.99 — complete system with power module $2,559.98
• 10 kWh (2 modules): $3,269.99 — complete system $4,169.98
• 15 kWh (3 modules): $4,899.99 — complete system $5,799.98
• 20 kWh (4 modules): $6,499.99 — complete system $7,399.98
• 25 kWh (5 modules): $7,999.99 — complete system $8,899.98
• 30 kWh (6 modules): $9,499.99 — complete system $10,399.98

The stack runs at a nominal 385 V (330 to 450 V), which is what lets the MIN XH-US charge and discharge it at full inverter power with small currents and thin cable. It is rated IP66 for outdoor mounting on a wall or the floor, works from -10 °C to 50 °C, cools by convection, and talks to the inverter over CAN. Each module weighs about 50 kg (110 lb) and measures 690 × 185 × 295 mm.

Sizing: 5 kWh carries a fridge, lights, internet and a furnace fan through a night; 10 kWh adds a well pump and some cooking; 20 kWh or more is for a whole-home backup with air conditioning or an EV charger, paired with the 10 kW or 11.4 kW MIN XH-US and the ATS-XH-US transfer switch. The system finder sizes it from your loads. 10-year warranty. Specifications are from Growatt's datasheet and are for reference; the installation must follow the manual, the NEC and local code, be carried out by a licensed electrician, and the interconnection approved by your utility.