Charged Reviews · Quick reference
SunGoldPower SGS-12K18MAX
- Brand
- SunGoldPower
- Model
- SGS-12K18MAX
- SKU / part number
- SGS-12K18MAX[6]
- Category
- Inverters

AC output
| Continuous output | 12 kW[3] |
|---|---|
| Peak output | 1.5 x rated power for 10 s[3] |
| AC configuration | Split-phase; Three-phase[3] |
| AC output voltage | 120/240Vac (Split-phase); 120/208V (Three-phase)[3] |
| AC frequency | 50/60Hz[3] |
| Grid pass-through | 200 A[3] |
| Maximum output per leg | ? |
Battery
| Battery voltage | 48 V[3] |
|---|---|
| Battery voltage range | 40 to 60 V[3] |
| Maximum charge current | 240 A[3] |
| Maximum discharge current | ? |
| Battery-only output | ? |
| Maximum grid charging | 200 A[3] |
| Compatible batteries / BMS | Li-ion Battery / Lead-Acid Battery / User Defined[3] |
PV input
| PV array limit (connected) | 18 kW[5] |
|---|---|
| PV input limit (converted) | ? |
| Maximum PV voltage (Voc) | 550 V[3] |
| MPPT voltage range | 125 to 450 V[3] |
| MPPT trackers | 2[3] |
| String inputs per MPPT | ? |
| PV current per MPPT | 32A/32A[3] |
| PV short-circuit current | 40A/40A[3] |
| PV startup voltage | ? |
Efficiency and modes
| Peak efficiency | 97.5 %[3] |
|---|---|
| CEC weighted efficiency | 96.5 %[3] |
| Battery conversion efficiency | ? |
| Grid / off-grid modes | ? |
| Generator input | Yes (generator input ports L1+L2; Max. Generator Charging Current 200A)[3] |
| Transfer time | ? |
| Idle consumption | 100 W[3] |
| Parallel units | 6[3] |
Communication and environment
| Communications | RS485; CAN; USB; Dry contact[3] |
|---|---|
| Operating temperature | -25 to 60 °C[3] |
| Enclosure rating | IP65[3] |
| Operating noise | <60dB[3] |
Mechanical
| Dimensions | 840 D × 440 D × 260 D mm[3] |
|---|---|
| Weight | 48 kg / 105.82 lb[3] |
Installation (from the manual)
Torque
| AC terminal torque | 13 N·m(115.06 in-lb*)[3] |
|---|---|
| Battery terminal torque | 5.5 N·m(48.68 in-lb*)[3] |
| PV terminal torque | ? |
| Ground terminal torque | ? |
Conductors
| Battery conductors | 70mm²/ 00 AWG[3] |
|---|---|
| AC input conductors | 70mm²/ 00 AWG (L1/L2/N)[3] |
| AC output conductors | 70mm²/ 00 AWG (L1/L2/N)[3] |
| PV conductors | 6mm²/ 10 AWG[3] |
| Ground conductor | Not less than 4 mm²[3] |
Protection
| AC input breaker | 2P-200A[3] |
|---|---|
| AC output breaker | Built-in load breaker (item 13: Load Breaker)[3] |
| Battery fuse or breaker | Built-in battery circuit breaker (item 24: Battery Circuit Breaker)[3] |
| PV disconnect | Integrated PV switch[3] |
Clearances and orientation
| Installation clearances | Top 20 cm, bottom 20 cm, sides 50 cm[3] |
|---|---|
| Mounting orientation | ? |
Grounding
| Grounding and neutral-ground bonding | Grounding terminal to the grounding bar[3] |
|---|
Communication
| Communication ports | External CT port; WIFI port 1 (RJ45); BMS RS485 port; BMS CAN port; USB-B port; Parallel port A; Parallel port B; RSD; Dry contact; USB-A port; WIFI port 2 (external Wi-Fi module)[3] |
|---|
Page 1 of 2 · Installation values · ? means nothing is recordedAggregated, often community-reported information, not official documentation. Do not rely on it for installation, purchase or compliance decisions; always confirm values with the manufacturer’s official documentation. Charged Reviews accepts no responsibility for errors.