RM-15 19-inch rack module (14.34 kWh)
14.34 kWh in 4U with a 200 A BMS — for integrators who need maximum energy per rack unit and can handle the mass with proper lifting equipment.
Product image
- Brand
- HighIdea
- Type
- 51.2 V rack module, 4U 19-inch
- Typical applications
- High-density battery cabinets, telecom sites, integrator builds
- Models in range
- RM-15 4U 280 Ah / 14.34 kWh, RM-15S with reduced-height terminals for shallow cabinets, RM-7 4U 150 Ah / 7.68 kWh
- Category
- Energy Storage Systems
Energy density against handling weight
There is a direct trade between the two. Packing 14.34 kWh into 4U reduces rack units, connections and internal wiring, and it raises the module mass to the point where installation requires lifting equipment rather than people.
Neither choice is wrong. Where the installation is a one-off and access is good, the high-density module is simpler and cheaper to wire. Where a replacement may have to be done years later by local staff with no lifting gear, the smaller modules usually win on total cost of ownership.
Rack compatibility is not assumed
A loaded 4U battery module is much heavier than the IT equipment most 19-inch racks were designed to hold. Standard adjustable rails are frequently not rated for it, and shelf-mounted installation is unsuitable.
Send us the rack specification before ordering. In most cases the answer is a specific rail set or a fixed shelf, and it is better to establish that at design stage than to discover it on site with the module already delivered.
Key Features
- 14.34 kWh in a 4U module — about 3.6 kWh per rack unit
- 200 A continuous, 400 A peak
- Fixed mechanical envelope across production batches
- Documented BMS register map, CAN and RS485
- Parallel up to 16 modules with automatic addressing
- Front-accessible terminals and display
- Around 118 kg — mechanical lifting required
Specifications
| Nominal voltage | 51.2 V (16S) |
|---|---|
| Rated capacity | 280 Ah / 14.34 kWh |
| Usable energy | approximately 12.9 kWh at 90 % depth of discharge |
| Continuous discharge current | 200 A |
| Peak discharge current | 400 A for 10 s |
| Form factor | 19-inch 4U |
| Communication | CAN |
| Cycle life | 6 |
| Parallel capability | up to 16 modules |
| Enclosure | steel chassis |
| Mass | approximately 118 kg |
| Warranty | 10 years or stated throughput |
Specifications subject to the latest factory data. Final configuration is sized against the actual load, backup runtime and site power conditions — this table is for pre-selection only.
Applications
High-density commercial cabinet
Fewer modules for the same capacity, which reduces the number of connections and the cabinet's internal wiring.
Telecom site with limited rack space
Fits a large capacity into an existing rack where adding modules would exceed the available units.
Integrator reference design
For systems where cabinet volume is a constraint and mechanical lifting is available at installation.
FAQ
Why choose this over two RM-5 modules?
Do rack rails need to be reinforced?
Is the BMS the same as the lower-capacity modules?
Related Models
BC-30
Six rack modules, busbars made off, DC breaker fitted and one communication interface — so the cabinet arrives ready to connect rather than as a set of parts to assemble on site.
View detailsLP48-280
14.34 kWh in one enclosure with a 200 A BMS — the configuration for solar banks and industrial backup where fewer, larger units are easier to manage than a stack of small ones.
View detailsRM-5
A 3U rack module built for integrators — frozen mechanical dimensions batch to batch, documented BMS registers, and predictable paralleling up to sixteen units.
View details