# Powerwall 3 vs SOLIX X1 (15 kWh): specs and price compared

A sourced, side-by-side comparison of the Powerwall 3 (Tesla) and SOLIX X1 (15 kWh) (Anker) among home battery backup.

## Side by side

| Spec | Powerwall 3 | SOLIX X1 (15 kWh) |
| --- | --- | --- |
| US price | $9200 | not published |
| Brand | Tesla | Anker |
| Released | 2023 | 2024 |
| Usable capacity kwh | 13.5 | 15 |
| Continuous power (kW) | 11.5 | 6 |
| Peak power (kW) | 22 | 12 |
| Battery chemistry | NMC | LiFePO4 (LFP) |
| Round trip efficiency | 97.5 | 90.2 |
| Scalable stackable | Yes | Yes |
| Warranty years | 10 | 10 |
| Backup transfer time ms | — | — |
| Weight (lb) | 287 | 389 |

## Key differences

- Usable capacity kwh: Powerwall 3 13.5 vs SOLIX X1 (15 kWh) 15
- Continuous power (kW): Powerwall 3 11.5 vs SOLIX X1 (15 kWh) 6
- Peak power (kW): Powerwall 3 22 vs SOLIX X1 (15 kWh) 12
- Battery chemistry: Powerwall 3 NMC vs SOLIX X1 (15 kWh) LiFePO4 (LFP)
- Round trip efficiency: Powerwall 3 97.5 vs SOLIX X1 (15 kWh) 90.2
- Weight (lb): Powerwall 3 287 vs SOLIX X1 (15 kWh) 389

## Sources

- Powerwall 3: https://www.thegreenwatt.com/tesla-powerwall-3-specs/ (thegreenwatt.com, verified 2026-08-01)
- SOLIX X1 (15 kWh): https://www.ankersolix.com/x1-energy-storage-system-hes (ankersolix.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/home-battery-backup/tesla-powerwall-3-vs-anker-solix-x1/
Cite: Per The Front Desk Review, Powerwall 3 ($9200) vs SOLIX X1 (15 kWh) (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/home-battery-backup/tesla-powerwall-3-vs-anker-solix-x1/
License: CC BY 4.0.