Modular battery rack Lithium Power Plus 24 V – 210 Ah – 5.5 kWh. Equipped with 4 battery modules. Choice of horizontal or vertical setup. Safe and space-saving energy storage. Perfect for land and maritime purposes. Advanced battery management with accurate battery monitoring. DNV type approval is optional.
In addition to this model, our modular battery racks are available in all conceivable configurations. Inquire about the possibilities.
- Highly safe energy storage system
- Light weight modular rack design
- Horizontal or vertical mounting
- Optional pre-installed busbars and cabling
- Plug and play
- DNV type approval optional
- Safe LiFePO4/LFP chemistry with prismatic cells
Safe Modular Battery Rack System
Perfect for power installations with an inverter up to 4 kW, for example in small boats. Also for terrestrial applications. Robust housing with aesthetically sleek looks. Depending on your space, choice of horizontal or vertical design. Very safe way of energy storage. The cabinet is screwed into the technical space, thereby eliminating any chance of sliding or falling. No additional ventilation or cooling needed. Advanced BMS system with accurate battery monitoring through Whisper Interface Box WIB (not included). This ensures the modules are charged and discharged equally.
Safety
- Safest and most reliable energy storage on the market
- In case of fire, extinguishable with all common extinguishing methods including water
- Integrated safety measures
- No risk of thermal runaway
- Passive safety: even without electronics, the battery modules remain safe


Lithium Battery with LiFePO4 Technology
This battery rack is equipped with 4 modules that deliver a capacity of 210 Ah and a total energy storage of 5.5 kWh at a voltage of 24 VDC. Guaranteed highest quality thanks to LiFePO4 chemistry with primary cells. LiFePO4 stands for lithium iron phosphate and is also known by the abbreviation LFP. This is the safest lithium technology offering longer lifespan, improved discharge and charge efficiency. This makes the battery perfectly suitable for the maritime sector. Additionally, the battery is completely maintenance-free and lighter in weight compared to other technologies. Want to know more? Everything about this lithium technology and applications can be found on the lithium battery information pages: part 1 and part 2.
Outstanding Scalable Energy Solutions
Our Lithium Power Plus modular battery racks are excellent scalable energy solutions ensuring high-performance outcomes. This construction method of the battery modules in a casing results in longer lifespan, higher reliability, and consistent power delivery. Already during the design process, we regulate the simultaneous charging and discharging of each battery module, something very difficult to achieve with individual modules and wiring.
Custom Design
In addition to standard models in horizontal and vertical execution, much more is possible. We gladly design your casing custom, with or without integrated DC distribution and one or more Whisper Interface Box battery management systems. Want to know which configuration fits your situation? Inquire about the possibilities.
Product specifications
| ARTICLE NUMBER |
| 40290223 |
Lithium Power Plus 24 V 5.5 kWh – Horizontal |
| 40290203 |
Lithium Power Plus 24 V 5.5 kWh – Tower/Vertical |
| TECHNICAL SPECIFICATIONS |
| Chemistry |
LiFePO4 |
| Module configuration (12 V module) |
2s2p |
| Number of modules |
4 |
| Nominal voltage |
24 V |
| Open circuit voltage |
26,4 V |
| Nominal capacity |
210 Ah |
| Nominal energy |
5,5 kWh |
| Cycle Life DOD 80% |
>3500 cycles (at 1C charge / discharge, 80% DoD |
| Self discharge |
<3% per month |
| Weight modules (excel. aluminum cabinet), kg (lb) |
40 (88.2) |
| DISCHARGE PARAMETERS |
| Discharge cut-off voltage |
21,6V |
| Recommended discharge current |
105 A (0.5C) |
| Maximum discharge current |
210 A (1.0C) |
| Discharge pulse current |
420 A (2.0C) |
| Fuse protection |
400 A T-class |
| CHARGE PARAMETERS |
| Charge method |
CCCV |
| Maximum charge voltage |
29,8 V |
| Recommended charge voltage |
28,6 V |
| Recommended charge current |
105 A (0.5 C) |
| Continuous charge current |
210 A (1.0 C) |
| CONFIGURATION |
| Series configuration |
Yes, up to 4 max |
| Parallel configuration |
Yes, up to 2 max |
| Redundant mode |
Yes, using double BIM |
| ENVIRONMENTAL |
| Operating temperature charge |
0°C to 55 °C / 32°F to 131°F |
| Operating temperature discharge |
-20°C to 55°C / -4°F to 131°F |
| Storage temperature |
-20°C to 55°C / -4°F to 131°F |
| Humidity (Non-condensing) |
<95% |
| MECHANICAL |
| Power connections |
M10 stud, max 20NM |
| Cable connections |
Option: Top or Bottom |
| IP-Protection class |
IP 66 cell IP20 connection |
| Cooling |
Natural air convection |
| Module material |
PC-ABS, UL94-V0 |
| Battery case material |
Aluminium Powdercoat |
| Dimensions (l x w x h), mm |
480 x 280 x 465 (540) |
| Dimensions (l x w x h), inches |
18,9 x 11 x 18,3 (21,3”) |
| Total weight module plus cabinet |
±55-60 kg / 121-132 lbs |
| SAFETY |
| Balancing |
Passive method |
| Battery Management System (BMS) |
External WP-BIM module |
| Communication CAN-Bus |
whisperconnect/NMEA2000 |
| EMC: Emission |
EN-IEC 61000-6-3:2007/A1:2011/C11:2012 |
| EMC: Immunity |
EN-IEC 61000-6-1:2007 |
| Low voltage directive |
EN 60335-1:2012/AC:2014 |
| Certifications |
CE, FCC, UN 38.3, UL 1642 (Cells), UN ECE R10.06, EN/IEC 62620(ESTRIN) |
| Shipping classification |
UN3480 |