
Product technical datasheet
Model numberSL-WA-5-20RevisionRev 1.0Issue dateAugust 2026
WallLoop Series · Energy Storage
WallLoop ESS (5 kWh – 20 kWh)
WallLoop is a residential wall-mounted LiFePO4 energy storage system engineered for solar self-consumption, UPS backup and peak-load management. Modular 5–20 kWh capacity with parallel expansion to 15 units.

Product summary
- Product family
- WallLoop Series
- Category
- Energy Storage
- Market segment
- residential
Electrical characteristics
| Nominal Voltage | 48V / 51.2V DC |
|---|---|
| Capacity Range | 5 kWh – 20 kWh (expandable) |
| Cell Chemistry | LiFePO4 Grade A |
| Cycle Life | ≥ 6,000 cycles @ 80% DOD |
| Efficiency | ≥ 95% round-trip |
| Parallel Units | Up to 15 units |
Mechanical specifications
| Mounting | Wall-mounted, indoor/outdoor rated |
|---|---|
| Display | Integrated LCD status panel |
| Dimensions (typ.) | 580 × 260 × 180 mm (5 kWh unit) |
| Weight (typ.) | 45 – 95 kg depending on capacity |
Environment and protection
| Operating Temperature | -10°C to +50°C |
|---|---|
| IP Rating | IP65 |
| Cooling | Natural convection |
| Altitude | ≤ 2,000 m |
Certifications
IEC 62619UN 38.3CERoHS
Warranty
| Warranty 1 | 10 Years Product Warranty (Battery & BMS) |
|---|---|
| Warranty 2 | 5 Years Extended Service Available |
Typical applications
- • Residential solar self-consumption
- • Home UPS backup
- • Time-of-use tariff optimization
Ordering information
Contact Sunloop Energy sales for configuration matrix and inverter compatibility guide.