Description
5.1kWh BSL Lithium Battery Rack Mount
The 5.1kWh BSL Lithium Battery Rack Mount is an energy-storage solution for compatible solar, backup and off-grid systems. It is intended to store surplus energy and supply supported loads when solar production is low or grid power is unavailable, subject to correct inverter communication and system design.
Key Features
- Provides rechargeable energy storage for compatible backup and solar systems.
- Lithium-based storage platform designed for repeated charge and discharge operation.
- Rack-mount format for organised modular installations.
- Must be paired with an inverter that supports the battery voltage and communication protocol.
- Final usable energy and discharge capability depend on the exact model settings and system design.
Technical Specifications
| Brand | BSL |
|---|---|
| Product | 5.1kWh BSL Lithium Battery Rack Mount |
| Product category | Batteries |
| Nominal energy capacity | 5.1kWh |
| Mounting format | Rack-mounted |
| • Usable energy | 5.12kWh (nominal) |
| • Nominal voltage | 51.2V (48V class) |
| • Capacity | 100Ah |
| • Chemistry | LiFePO₄ (LFP) with integrated BMS |
| • Cycle life | ≥6000 cycles @ 80% DoD (typical) |
| • Continuous charge current | up to 80A (module level) |
| • Continuous discharge current | up to 100A (module level) |
| • Parallel expansion | up to 63 modules (installer to confirm limits and cabling) |
| • Communications | CANBus / RS485 (inverter profile dependent) |
| • Rack size | 19″ 3U |
| • Dimensions (W×D×H) | ±483 × 538 × 133mm |
Suitable Applications
- Residential backup power
- Solar self-consumption
- Off-grid energy storage
- Commercial storage systems when the voltage platform is compatible
Important Installation Information
Confirm inverter compatibility, battery voltage, BMS communication, charge and discharge settings, cable sizing and protection before installation. Mixing unsupported battery models, voltages or firmware versions can cause poor performance or equipment damage.

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