19kWh Batteries

19kWh Batteries for Home & Commercial Energy Storage

Shop 19kWh batteries at PES Supply for whole-home and commercial energy storage. 19 kilowatt-hour battery systems provide substantial backup capacity—enough to power essential home loads through the night or during multi-day outages. Available as modular LiFePO4 units from leading brands including EG4, Fortress Power, BYD, SONNEN, and more.

19kWh Storage Applications

• Whole-home backup – power essentials for 1-2 days
• Self-consumption – store solar for evening use
• Time-of-use optimization – charge cheap, use peak
• Off-grid living – overnight solar storage
• Stackable – add units for more capacity

A 19kWh battery paired with solar can power a typical home's essential loads (refrigerator, lights, well pump, internet, furnace fan) through the night and recharge during the day. For whole-home coverage including HVAC, multiple batteries may be needed. Our team helps size the right storage for your load profile.

Browse the full selection below and order today with fast shipping from PES Supply. Questions? Our solar and backup power experts are ready to help you spec the right system—contact us.