Product Family
BJ ULTRA Series
Off-grid / grid-connected MPPT hybrid inverter series from 4kW to 11kW, with 24V and 48V battery variants for residential backup and solar storage.
48V Hybrid
Flexible 48V inverter family for hybrid home systems
Off-grid / grid-connected MPPT hybrid inverter series from 4kW to 11kW, with 24V and 48V battery variants for residential backup and solar storage.
Highlights
- Maximum conversion efficiency up to 98%
- Supports lithium battery BMS communication
- Parallel function up to 6 units
- Supports operation without battery
Model Range
4000W to 11000W
Battery Platform
24VDC / 48VDC
Efficiency
Up to 98%
Parallel Units
Up to 6
Display
4.3 inch touch screen
Battery-Free Mode
Supported
Source and Boundary
Product information requires final model confirmation
BJ ULTRA Series Hybrid Inverter Specification V1.0
The current specification sheet lists BJ4024SMH, BJ6248SMH, BJ8548SMH and BJ11048SMH, covering 4kW to 11kW rated output with parallel operation for up to six units.
Confirm selected brand, local grid mode, battery protocol and accessory selection in the quotation.
Current source used for the displayed model matrix.
Selection Direction
Match the product family to your requirement
Documented product directions are shown below. Final model, compatibility, document scope and supply terms are confirmed with your project inquiry.
Application
Product Direction
Confirm Before Quote
Application
Compact 24V residential backup
Product Direction
BJ4024SMH - 4000W / 24VDC
Confirm Before Quote
Battery selection, PV array voltage and backup load list
Application
Standard 48V residential hybrid system
Product Direction
BJ6248SMH - 6200W / 48VDC
Confirm Before Quote
Battery BMS communication, local AC mode and PV input plan
Application
Higher PV input or expandable backup
Product Direction
BJ8548SMH or BJ11048SMH with dual MPPT
Confirm Before Quote
PV string sizing, total load, parallel requirement and market approval
Quotation Input
Information required for model confirmation
Provide the available project details so Rongkai can confirm product suitability, applicable documentation and quotation scope.
Request Product Quote- Destination market, AC voltage/frequency and grid or off-grid mode
- PV array size, string voltage and expected inverter output
- Battery type, 24V/48V platform and BMS communication need
- Critical loads, transfer expectation and any parallel expansion
- Required specification, compliance or shipment documents
Application Fit
Application areas covered by this product family, subject to final model and system compatibility confirmation.
Residential backup systems
Off-grid or hybrid home power
Flexible 48V deployment
Parallel expansion scenarios
Model Matrix
Compare the main variants available within this family.
BJ4024SMH
4000W model with 24VDC battery input and single MPPT charging
BJ6248SMH
6200W model with 48VDC battery input and single MPPT charging
BJ8548SMH
8500W model with 48VDC battery input and dual MPPT charging
BJ11048SMH
11000W model with 48VDC battery input and dual MPPT charging
Selection Guide
Key points for model comparison, system matching and quotation preparation.
Best Fit
A flexible 48V platform for backup operation, lithium battery compatibility and scalable inverter deployment.
System Match
Suitable for home storage, backup applications and projects that benefit from parallel expansion and broad PV charging support.
Selection Parameters
Power class, PV charging method, battery communication, MPPT count and parallel capability determine the selected model.
Request BJ ULTRA Series
Send your destination market, capacity requirement, installation context and any document requirements for model confirmation and quotation.