Illustration of the product type, not this exact unit
Hybrid inverter
EG4 FlexBOSS18: specs and datasheet
- UL 3141
- UL 1741
FlexBOSS18 gives 10 kW on battery alone and 13 kW with PV and grid at 25 °C, on two MPPTs with up to 18 kW of recommended solar. The maker presents it as a cost-effective way into hybrid solar. Battery charge current is limited to 208 A at 51.2 V, and peak power is 20,000 W for half a second. It is rated NEMA 4X, and the warranty is 10 years.
- Output
- 10 kW (41.67 A), battery only
- Battery
- 51.2 VDC
- Solar input
- 18 kW
- MPPTs
- 2
- Warranty
- 10 years
About the FlexBOSS18
FlexBOSS18 gives 10 kW on battery alone and 13 kW with PV and grid at 25 °C, on two MPPTs with up to 18 kW of recommended solar. The maker presents it as a cost-effective way into hybrid solar. Battery charge current is limited to 208 A at 51.2 V, and peak power is 20,000 W for half a second. It is rated NEMA 4X, and the warranty is 10 years.
In one line An inverter turns the DC power from solar panels and batteries into the AC power household appliances use.
Key features · as listed by the maker
- 13 kW to grid or load with PV; 10 kW without PV
- Flexible installation options
- Works with EG4’s battery lineup and GridBOSS
- Comprehensive certification package
How power moves
- Up to 18.0 kW of PV (recommended max)
- 51.2 V battery bank
- 10.0 kW continuous to your loads
Schematic only: it shows the direction of flow in each situation, not measured values. Wiring and code requirements are in the maker’s manual and your local code.
Use it in a calculation
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Specifications
- Model number
- IV-13000-HYB-AW-FX-XX
- Continuous output
- 10 kW (41.67 A), battery only
- Continuous output with PV and grid (at 25 °C)
- 13 kW (41.67 A)
- Peak power
- 0.5 s: 20,000 W · 1 s: 15,000 W · 1 min: 13,500 W · 6 min: 12,500 W · 12 min: 11,000 W
- Battery voltage (nominal)
- 51.2 VDC
- Max battery charge current
- 208 A
- Max DC input voltage
- 600 VDC
- MPPT voltage high protection (inverter faults here; plan strings below it)
- 550 VDC
- MPPT full-power voltage range
- 250 – 440 VDC (360 VDC optimal)
- Number of MPPTs
- 2
- Rated PV current per MPPT
- 26 A (MPPT 1) | 26 A (MPPT 2)
- Recommended max solar array power (STC)
- 18 kW
- Idle consumption (standby)
- <60 W @ 25 °C
- Efficiency, battery to grid/load (max)
- 94%
- Max inverters in parallel
- 16
- Warranty (as listed)
- 10 years
- Enclosure rating
- NEMA 4X
- Weight
- 115 lbs (52 kg)
- Dimensions (H×W×D)
- 30.43×22.28×11.22 in (773×566×285 mm)
Each value is the datasheet line as printed (hover or long-press a value to see that line). A missing row means the datasheet does not list it. Specs change with new revisions: check the current datasheet (linked above) before you buy.
Documents and links
- Datasheet: EG4 FlexBOSS18 Hybrid Inverter Spec Sheet PDF, from the maker
- Datasheet: EG4 FlexBOSS18 Hybrid Inverter Spec Sheet PDF, from the maker
- Maker’s product page (EG4 Electronics)
Not affiliated with Signature Solar LLC or EG4 Electronics. Trademarks belong to their owners.