8kWh 51.2V 170Ah LiFePO4
Rack Battery for Solar Storage
The BSLBATT B-LFP48-170E is an 8kWh-class LiFePO4 rack battery built for solar self-consumption, off-grid backup, and time-of-use load shifting. Its 16S2P cell configuration delivers 8.9 kWh nominal energy from a compact rack-mountable form factor suited to both residential and light commercial projects. Connect up to 63 units in parallel to scale from a single home to a 534 kWh multi-building system. The built-in BMS and five communication interfaces (CAN, RS485, RS232, Wi-Fi, Bluetooth) allow direct inverter pairing with no external gateway.
Why the B-LFP48-170E Sits in a Capacity Sweet Spot
At 8.9 kWh nominal (8.0 kWh usable at 90% DoD), the B-LFP48-170E fills the gap between entry-level 5 kWh modules and full-size 10 kWh units. It delivers enough stored energy to meaningfully offset evening and overnight grid consumption in a typical solar self-consumption setup, without the higher upfront cost of a 10 kWh module.
For larger systems, its 63-unit parallel capability scales to 534 kWh without external gateway hardware, making it equally suited to small commercial deployments. The 1C continuous discharge rate (174A rated) delivers the full 8.9 kW output needed for high-draw appliances during backup events.
The 16S2P cell configuration (two 87Ah cells in parallel per series position) provides a higher capacity density per unit than single-cell designs at the same voltage, reducing the total unit count needed for mid-size residential and commercial installations.
Monitoring
- Wi-Fi and Bluetooth connectivity
- APP remote monitoring
- Remote OTA firmware updates
Reliability
- 6,000+ cycles at 25 degrees C
- 15+ year design life
- 10-year performance warranty
Flexibility
- Up to 63 units in parallel (534 kWh total capacity)
- Compact rack-mountable form factor
- Modular design for quick stacking
Safety
- Cobalt-free LiFePO4 chemistry (non-toxic, non-flammable)
- Built-in aerosol fire suppression
- BMS with over-charge, over-discharge, short-circuit, and over-temperature protection
- 350A short-circuit protection with 500 microsecond response
Key Features of the B-LFP48-170E
16S2P Cell Architecture
Two 87Ah UL-listed prismatic LiFePO4 cells per series position deliver 174Ah total capacity (8.9 kWh) with balanced current sharing. The BMS continuously monitors and balances all 32 cells to maintain consistent performance across the pack.
30+ Inverter Compatibility
Pre-configured CAN and RS485 communication protocols for Victron, Deye, Growatt, Goodwe, SMA, Solis, Schneider, Sofar, and 20+ additional brands. Plug-and-play integration with protocol selection via BMS settings.
Five Communication Interfaces
CAN, RS485, RS232, Wi-Fi, and Bluetooth built in. Monitor cell-level voltage, temperature, and SOC from the BSLBATT mobile app without a separate gateway.
90% Depth of Discharge
Delivers 8,017 Wh of usable energy per cycle from 8,908 Wh total capacity. Over 6,000 cycles at 25 degrees C with a 10-year warranty.
1C Continuous Discharge Rate
174A (8.9 kW) continuous output handles high-draw loads including air conditioning, water pumps, and EV chargers during peak-shaving or backup events.
63-Unit Parallel Expansion
Scale from a single 8.9 kWh module to a 534 kWh system with no external gateway or master controller required.
Who Is the B-LFP48-170E Designed For?
Solar Installers, Integrators, and Distributors
The B-LFP48-170E fills the mid-capacity tier that many residential project quotes call for. A single unit covers the 8 to 9 kWh range without oversizing to 10 kWh, keeping material costs closer to the customer's actual load profile. It sits between the 5.12 kWh B-LFP48-100E and the 10.24 kWh B-LFP48-200E on the same 51.2V platform, and all three models parallel together. Distributors can offer entry, mid, and high capacity tiers from a single voltage family and simplify technical support and spare parts inventory.
Homeowners Adding Battery Storage to Rooftop Solar
One B-LFP48-170E provides 8.0 kWh of usable energy at 90% DoD, enough to offset a significant portion of evening and overnight grid draw in a solar self-consumption setup. For homes with higher storage needs, adding a second unit brings the system to 17.8 kWh without replacing any existing hardware.
Off-Grid and Backup Power Applications
The 1C continuous discharge rate (174A / 8.9 kW) supports high-draw loads like water pumps, air conditioning compressors, and power tools during grid outages. The operating discharge range of -20 to 55 degrees C suits installations in unheated garages, outdoor enclosures, and tropical climates.
Small Commercial and Light C&I Energy Storage
With up to 63 units in parallel (534 kWh total), the B-LFP48-170E scales beyond residential into small commercial territory. Retail stores, workshops, small warehouses, and agricultural operations can use multi-unit rack configurations for peak shaving, time-of-use arbitrage, or solar self-consumption. The built-in BMS handles inter-unit coordination without an external gateway, keeping system architecture and commissioning straightforward even at higher unit counts.
B-LFP48-170E Compatible Inverters for Home and Off-Grid Systems
The BSLBATT B-LFP48-170E is listed as compatible by 20 inverter brands, including Victron Energy, Deye, LuxPower, SMA and Studer Innotec. The table below shows the listed inverter models and the protocol each one uses.
| Inverter Brand | Protocol | Listed Inverter Models |
| Afore | CAN | AF1-3.6K-SL, AF3-3.6K-SL, AF4-6K-SLP, AF8-12K-SLP |
| Deye | CAN / RS485 | SUN-SG04LP1, SG05LP1, SG01LP1, SG02LP1, SG02LP2, SG04LP3 and SG05LP3 series (3-20kW) |
| Epever | RS485 | UC3542, KR3542, UCP3542, KRP3542 and HP2042 series |
| GoodWe | CAN / RS485 | ES Series, ES G2 |
| Growatt | CAN | SPH / SPM HU, SPE, SPF |
| LuxPower | CAN | LXP-LB, GEN-LB, GEN2-LB, TriP2-LB and SNA series (3-20kW) |
| MEGAREVO | CAN | R5-10KLNA, R12KLNA, R16KLNA |
| Phocos | RS485 | Any-Grid PSW-H-5kW-230/48V |
| Sinexcel Isuna | CAN | All LV models |
| SMA | CAN | Sunny Island 4.4M / 6.0H / 8.0H |
| SAJ | CAN | H2 Series |
| Solis | CAN | S6-EH1P(3-10)K-L-PLUS, S6-EH3P(8-18)K02-NV-YD-L |
| Solplanet | CAN | ASW3000 to ASW6000H-S2 |
| SolaX Power | CAN | X3-ULTRA, X1-RENO-LV, X1-Lite-LV |
| SOSEN | CAN | SSA-HL and SSE-HL series (1.2-24kW) |
| SRNE | RS485 | HESP series (3.6-12kW) |
| Studer Innotec | CAN | Next3, Xtender |
| Sunsynk | CAN / RS485 | All models |
| TBB Power | CAN | Riio II, Riio Sun II, Tyrann, Matrix II |
| Victron Energy | CAN | MultiPlus, MultiPlus-II (GX), Quattro, Quattro-II, Multi RS Solar, EasySolar, EasySolar-II GX |
The 170E sits between 5kWh and 10kWh modules, a size that suits evening self-consumption and off-grid backup. For off-grid systems, listed battery inverters include the Victron MultiPlus-II, Studer Xtender and SMA Sunny Island.
For an inverter model not shown in the table, send the model number to BSLBATT technical support to confirm compatibility before installation.
CAN protocol (20 brands):
CAN protocol (20 brands): Pylontech · Deye/Sunsynk · Growatt · Victron Energy · Luxpower · SMA · Goodwe · Studer · Sofar Solar · Ginlong/Solis · TBB Power · Donnergy · Aiswei · SAJ · Sorotec · MUST · Megarevo · Schneider Electric · Afore · Solax
RS485 protocol (18 brands):
Pylontech · Deye/Sunsynk · Growatt · Voltronic Power · Phocos · Luxpower · SRNE · Sorotec · HYPONTECH · SUNPLAIN/OLU · Epever · Talegent · Eltek · Techfine · SMK Solar · Gospower · AOHAI · Sungery
For inverter-specific wiring diagrams, BMS protocol versions, and DIP switch settings, refer to the Product Manual or contact BSLBATT for technical support.
How Does the 8kWh Compare to Other BSLBATT Rack Batteries?
All three models run on the same 51.2V platform. The B-LFP48-170E offers the widest communication protocol support (five interfaces including Wi-Fi and Bluetooth) and sits in the mid-capacity sweet spot between the 6 kWh and 10.24 kWh options.
| Specification | B-LFP48-120E | B-LFP48-170E | B-LFP48-200E |
| Capacity | 125Ah | 174Ah | 200Ah |
| Nominal Energy | 6 kWh | 8.9 kWh | 10.24 kWh |
| Usable Energy | 5.4 kWh (90% DoD) | 8.0 kWh (90% DoD) | 9.7 kWh (95% DoD) |
| Voltage | 51.2V | 51.2V | 51.2V |
| Cell Config | 16S1P | 16S2P | 16S1P |
| Cycle Life | 6,000+ | 6,000+ | 6,000+ |
| Max Parallel | Up to 163 | Up to 63 | Up to 63 |
| Communication |
RS232, RS485, CAN, WIFI, Bluetooth
|
RS232, RS485, CAN, WIFI, Bluetooth | RS232, RS485, CAN, WIFI, Bluetooth |
Factory-Direct Pricing
BSLBATT manufactures the B-LFP48-170E at its own production facility in Huizhou, China. Solar installers, energy storage distributors, and OEM/ODM partners can work directly with the factory for competitive pricing, with standard lead times of 25 to 30 days. The 10-year warranty applies across all markets, with regional support available in North America (Dallas, Texas warehouse), Europe, Australia, Africa, and Southeast Asia.
Contact the BSLBATT sales team for a project-specific quotation.
8kWh LiFePO4 Solar Battery FAQ
Q: Is the B-LFP48-170E an 8kWh or 8.9kWh battery?
BSLBATT rates the B-LFP48-170E at 51.2V and 174Ah, which yields a nominal energy of 8,908 Wh (8.9 kWh). The "8kWh" product designation is a rounded reference. At 90% depth of discharge, the usable energy is 8,017 Wh (8.0 kWh). The 16S2P cell configuration uses 16 UL-listed 3.2V prismatic LiFePO4 cells in series with 2 cells in parallel per position.
Q: How many B-LFP48-170E units can I connect in parallel?
BSLBATT supports up to 63 B-LFP48-170E units in parallel, reaching a maximum system capacity of 534 kWh. The built-in BMS handles inter-unit communication without requiring an external gateway or master controller.
Q: What inverters are compatible with the B-LFP48-170E?
BSLBATT's B-LFP48-170E communicates via CAN, RS485, and RS232 protocols. Confirmed compatible brands include GoodWe, Victron Energy, Solis, Sunsynk, Luxpower, SAJ, TBB, Studer, Phocos, and Afore. Wi-Fi and Bluetooth are available for direct app monitoring.
Q: Is the B-LFP48-170E compatible with Victron inverters?
Yes. BSLBATT lists the B-LFP48-170E as compatible with Victron Energy MultiPlus, MultiPlus-II (GX), Quattro, Quattro-II, Multi RS Solar and EasySolar series over CAN. The battery reports its status to the Victron system through closed-loop BMS communication.
Q: Does the B-LFP48-170E have UL1973 certification?
BSLBATT's B-LFP48-170E is built with UL-listed 3.2V prismatic LiFePO4 cells and certified to UN38.3 for transport safety. For North American projects that specifically require UL1973 pack-level certification, BSLBATT offers the B-LFP48-100E (5.12 kWh, File No. MH65904) and B-LFP48-200PW (10.24 kWh wall-mount).
Q: What is the cycle life of the B-LFP48-170E?
BSLBATT rates the B-LFP48-170E at over 6,000 charge-discharge cycles at 25 degrees C, tested at 80% depth of discharge (0.5C charge / 1C discharge). The design life exceeds 15 years, and the battery carries a 10-year performance warranty.
| Model | B-LFP48-170E | |
| Battery Type | LiFePO4 | |
| Cell &Method | 16S2P | |
| Nominal Voltage(V) | 51.2 | |
| Nominal Capacity(wh) | 8908 | |
| Usable Capacity(wh) | 8017 | |
| Dimension (L*W*H) | 403*640(600)*227 mm | |
| Weight(Kg) | 75 | |
| Discharge Voltage(V) | 47 | |
| Charge Voltage(V) | 55 | |
| Charge | Rate.Current / Power | 87A / 4.445kW |
| Max.Current / Power | 160A / 8.192kW | |
| Peak Current / Power | 210A / 10.75kW | |
| Discharging | Rate.Current / Power | 174A / 8.908kW |
| Max.Current / Powerr | 220A / 11.26kW, 1s | |
| Peak Current / Power | 250A / 12.8kW, 1s | |
| Communication | RS232, RS485, CAN, WIFI, Bluetooth | |
| Depth Of Discharge(%) | 90% | |
| Expansion | up to 63 units in parallel | |
| Working Temperature | Charge | 0~55℃ |
| Discharge | -20~55℃ | |
| Storage Temperature | 0~35℃ | |
| Short Circuit Current/Duration Time | 350A, Delay time 500μs | |
| Cooling Type | Nature | |
| Protection Level | IP20 | |
| Warranty | 10 Years | |
| Design Life | >15 Years(25℃ / 77F) | |
| Cycle Life | >6000 cycles, 25℃ | |
| Certification &Safety Standard | UN38.3 | |
