
GoodWe Lynx Home U
LX U5.4-20
Low-voltage (51.2 V) 5.4 kWh home battery for ES/EM/SBP inverters.
- 5.4 kWh
- Low-voltage (48 V)

GW5000-ES-20
Single-phase 5 kW hybrid inverter for low-voltage (48 V) batteries with UPS function.
ES G2 is the second generation of GoodWe low-voltage hybrid inverters for residential systems, available from 3 to 6 kW. GW5000-ES-20 combines 5 kW rated power with a 7.5 kW maximum PV input.
The battery port operates between 40 and 60 V with up to 120 A charge and discharge current. The backup output delivers 5 kVA rated and 10 kVA peak power (10 s) with switch-over below 10 ms. According to the datasheet, lead-acid batteries are not supported on the EU market.
Several inverters can operate in parallel. For low-voltage batteries the manufacturer states compatibility with the Lynx Home U series.
| Parameter | Value |
|---|---|
| General | |
| Phases | 1 |
| Topology | Non-isolated |
| PV input (DC) | |
| Max. PV input power | 7,500 W |
| Max. input voltage | 600 V |
| MPPT voltage range | 60 – 550 V |
| Start-up voltage | 58 V |
| Number of MPPT trackers | 2 |
| Strings per MPPT | 1 |
| Max. input current per MPPT | 16 A |
| Max. short-circuit current per MPPT | 23 A |
| AC output | |
| Rated output power | 5,000 W |
| Max. apparent output power | 5000 (4600 for VDE-AR-N 4105) |
| Max. output current | 22.7 A |
| Rated output voltage | 220 / 230 / 240 V |
| Battery | |
| Compatible battery type | Li-Ion (low voltage; lead-acid not available for EU per datasheet) |
| Nominal battery voltage | 48 V |
| Battery voltage range | 40 – 60 V |
| Max. charge current | 120 A |
| Max. discharge current | 120 A |
| Max. charge power | 5,000 W |
| Max. discharge power | 5,300 W |
| Backup output | |
| Backup rated output power | 5,000 VA |
| Backup peak power | 10000 @ 10 s |
| Switch time | <10 ms (UPS-level) ms |
| Efficiency | |
| Max. efficiency | 97.6 % |
| European efficiency | 96.7 % |
| Protection | |
| Ingress protection | IP65 |
| Arc-fault protection (AFCI) | Optional |
| Surge protection | DC Type II, AC Type II |
| Communication | |
| Communication | BMS: CAN; meter: RS485; portal: WiFi / WiFi + LAN / 4G |
| Mechanical data | |
| Cooling | Natural convection |
| Operating temperature | -25 – +60 °C |
| Dimensions (W × H × D) | 505.9 x 434.9 x 154.8 mm |
| Weight | 21.5 kg |
Values are taken from the manufacturer's official datasheet listed in the sources. Check the current document version before designing.

LX U5.4-20
Low-voltage (51.2 V) 5.4 kWh home battery for ES/EM/SBP inverters.

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