Home batteries
Home batteries store solar for evenings and outages. Compare usable kWh, continuous power (what you can run at once), chemistry (LFP is now standard), warranty terms, and whether it can back up your whole home.
| Brand | Share of new installs | Certified models | Capacity | Chemistry | Best round-trip | Notes |
|---|---|---|---|---|---|---|
| Tesla | 71.6% | 1 | 13.5–13.5 kWh | Lithium Ion Phosphate | — | Market leader. |
| SolarEdge | 11.8% | 4 | 4.9–9.7 kWh | Lithium Ion, Lithium Iron Phosphate | — | Operating; being moved to the Nexis platform. |
| EG4 | 2.4% | 10 | 5.12–16 kWh | Lithium Iron Phosphate | — | Popular in DIY/off-grid. Had a 2024-2025 battery recall/firmware issue (check). |
| PointGuard Energy | 0.8% | 2 | 5.38–8.06 kWh | Lithium Ion | — | |
| Storz Power | 0.6% | 1 | 5.12–5.12 kWh | Lithium Iron Phosphate | — | |
| LG | 0.4% | 5 | 9.6–17.7 kWh | Lithium Ion | — | Large battery maker. Had a 2020-2021 RESU NMC fire recall. |
| Anker SOLIX | 0.2% | 2 | 5–6.14 kWh | Lithium Ion | — | Newer US entrant. |
| Fortress Power | 0.1% | 28 | 5–56.32 kWh | Lithium Iron Phosphate | — | Operating; small private company. |
| Tigo | 0.1% | 11 | 5–30 kWh | Lithium Iron Phosphate | — | |
| Pytes | 0.1% | 29 | 5.12–56.32 kWh | Lithium Ion, Lithium Ion Phosphate | — | |
| Panasonic | 0.1% | 3 | 10–20 kWh | Lithium Iron Phosphate | — | DISCONTINUED April 2025. Panasonic says warranties will be honored. |
| Renon Power Technology | <0.1% | 48 | 4.8–40.96 kWh | Lithium Iron Phosphate | — | |
| Pylon Technologies | <0.1% | 84 | 3.55–56.83 kWh | Lithium Iron Phosphate | — | |
| Ningbo Deye Ess Technology | <0.1% | 25 | 5.12–56.32 kWh | Lithium Iron Phosphate, Lithium Iron phosphate | — | |
| Qcells | <0.1% | 3 | 10–20 kWh | Lithium Iron | — | Operating. |
| Kowint Energy | <0.1% | 32 | 4.8–30.72 kWh | Lithium Iron Phosphate | — |
Share: residential systems installed 2024–2026 in public records. Models and specs: California Energy Commission certified equipment lists (October 2026). PVEL: Kiwa PVEL Module Reliability Scorecard. Notes reflect public reporting as of October 2026.