StackRack SR5K-UL
StackRack states 5 kWh usable energy (United States).
Warranty terms: 10 years (United States); warranted throughput: 26.1 MWh (United States); capacity at warranty end: 70% (United States).
Brand: StackRack
Published figures
No figures have been collected for continuous power and motor-start current.
| Figure | Value | Publisher | Source |
|---|---|---|---|
| Usable energy | 5 kWh | Manufacturer Not yet checked | Spec sheet, at p.1 / Specifications - Energy Capacity, retrieved Sep 25, 2026 |
| Units per system | 64 units | Manufacturer Not yet checked | Web page, at Features, retrieved Sep 25, 2026 |
| Largest stack | 325 kWh | Manufacturer Not yet checked | Web page, at Features, retrieved Sep 25, 2026 |
| Lowest operating temperature (discharging) | −20°C | Manufacturer Not yet checked | Spec sheet, at p.1 / Specifications - Temperature ranges, retrieved Sep 25, 2026 |
| Lowest operating temperature (charging) | 0°C | Manufacturer Not yet checked | Spec sheet, at p.1 / Specifications - Temperature ranges, retrieved Sep 25, 2026 |
| Highest operating temperature (charging) | 45°C | Manufacturer Not yet checked | Spec sheet, at p.1 / Specifications - Temperature ranges, retrieved Sep 25, 2026 |
| Highest operating temperature (discharging) | 50°C | Manufacturer Not yet checked | Spec sheet, at p.1 / Specifications - Temperature ranges, retrieved Sep 25, 2026 |
| Weight | 45 kg | Manufacturer Not yet checked | Spec sheet, at p.1 / Specifications - Unit Weight, retrieved Sep 25, 2026 |
Stated stack range
Largest stated stack: 325 kWh (energy basis not stated) (64 units).
Stated temperature limits
Stated charging range: 32°F (0°C) to 113°F (45°C).
Stated discharging range: −4°F (−20°C) to 122°F (50°C).
Warranty terms
| Term | Figure | Document |
|---|---|---|
| Warranty, United States | 10 years | Warranty, at §1 Limited warranty coverage, retrieved Sep 25, 2026 |
| Warranted throughput, United States | 26.1 MWh | Warranty, at §1 table, retrieved Sep 25, 2026 |
| Capacity at warranty end, United States | 70% | Warranty, at §1 table, retrieved Sep 25, 2026 |
The stated 26.1 MWh equals 5,220 full cycles of its 5 kWh usable energy.
Features the manufacturer states
| Feature | Stated | Source |
|---|---|---|
| Chemistry | LFP Not yet checked | Spec sheet, at p.1 / Specifications - Chemistry, retrieved Sep 25, 2026 |
| Compatible inverters | Luxpower, Sol-Ark, Schneider, Victron, Growatt and others (closed-loop) Not yet checked | Web page, at Features, retrieved Sep 25, 2026 |
| Nominal battery voltage | 51.2 V Not yet checked | Spec sheet, at p.1 / Specifications - Nominal Voltage, retrieved Sep 25, 2026 |
| Dimensions | 442 x 470 x 140 (L x W x H) mm Not yet checked | Spec sheet, at p.1 / Specifications - Unit Dimensions (L x W x H), retrieved Sep 25, 2026 |
| Product status | current Not yet checked | Web page, at product page, retrieved Sep 25, 2026 page cited, no quote |
Government and program lists
This product is on none of the lists this site reads.
Installs
No install count this site publishes covers this product.
Recalls and safety notices
No notice in the recall sources this site reads is matched to this product. That is not a safety finding. See every recall notice.
- UL 9540 listed: Yes as ESS with Luxpower 12K, site also claims Sol-Ark 12K/15K
- UL 9540A tested: Yes
The maker states the listing or test. The listing body's records have not been checked.
Backup hours from your load
This battery has no maker-stated continuous power on this site.