Charged Reviews · Quick reference

SunGoldPower SGS-12K18MAX

Brand
SunGoldPower
Model
SGS-12K18MAX
SKU / part number
SGS-12K18MAX[6]
Category
Inverters
chargedreviews.com/inverters/sungoldpower-sgs-12k18max

AC output

Continuous output12 kW[3]
Peak output1.5 x rated power for 10 s[3]
AC configurationSplit-phase; Three-phase[3]
AC output voltage120/240Vac (Split-phase); 120/208V (Three-phase)[3]
AC frequency50/60Hz[3]
Grid pass-through200 A[3]
Maximum output per leg?

Battery

Battery voltage48 V[3]
Battery voltage range40 to 60 V[3]
Maximum charge current240 A[3]
Maximum discharge current?
Battery-only output?
Maximum grid charging200 A[3]
Compatible batteries / BMSLi-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 range125 to 450 V[3]
MPPT trackers2[3]
String inputs per MPPT?
PV current per MPPT32A/32A[3]
PV short-circuit current40A/40A[3]
PV startup voltage?

Efficiency and modes

Peak efficiency97.5 %[3]
CEC weighted efficiency96.5 %[3]
Battery conversion efficiency?
Grid / off-grid modes?
Generator inputYes (generator input ports L1+L2; Max. Generator Charging Current 200A)[3]
Transfer time?
Idle consumption100 W[3]
Parallel units6[3]

Communication and environment

CommunicationsRS485; CAN; USB; Dry contact[3]
Operating temperature-25 to 60 °C[3]
Enclosure ratingIP65[3]
Operating noise<60dB[3]

Mechanical

Dimensions840 D × 440 D × 260 D mm[3]
Weight48 kg / 105.82 lb[3]

Installation (from the manual)

Torque

AC terminal torque13 N·m(115.06 in-lb*)[3]
Battery terminal torque5.5 N·m(48.68 in-lb*)[3]
PV terminal torque?
Ground terminal torque?

Conductors

Battery conductors70mm²/ 00 AWG[3]
AC input conductors70mm²/ 00 AWG (L1/L2/N)[3]
AC output conductors70mm²/ 00 AWG (L1/L2/N)[3]
PV conductors6mm²/ 10 AWG[3]
Ground conductorNot less than 4 mm²[3]

Protection

AC input breaker2P-200A[3]
AC output breakerBuilt-in load breaker (item 13: Load Breaker)[3]
Battery fuse or breakerBuilt-in battery circuit breaker (item 24: Battery Circuit Breaker)[3]
PV disconnectIntegrated PV switch[3]

Clearances and orientation

Installation clearancesTop 20 cm, bottom 20 cm, sides 50 cm[3]
Mounting orientation?

Grounding

Grounding and neutral-ground bondingGrounding terminal to the grounding bar[3]

Communication

Communication portsExternal 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.

Charged Reviews · Quick reference

SunGoldPower SGS-12K18MAX · SGS-12K18MAX

Warranty

Warranty term?
Optional extension?
Coverage starts?
Coverage conditions?
Remedy?
Labor and shipping?
Transfer to another owner?
Registration?
Territory?

Certifications and listings

UL 1741ClaimedListed when checked[4]ClaimedListed when checked[4]
UL 1741 SA?
UL 1741 SBClaimedListed when checked[7]
IEEE 1547ClaimedListed when checked[4]ClaimedListed when checked[4]ClaimedListed when checked[3]ClaimedListed when checked[3]
CA Rule 21?
UL 9540?
FCC Part 15?
CSA C22.2#107.1:2016 Ed.4ClaimedListed when checked[4]
UL 1699B:2018 Ed.1+R:18May2021ClaimedListed when checked[4]
FCC 15 class BClaimedListed when checked[3]
1741 SBClaimedListed when checked[3]
UL 1699B:2018ClaimedListed when checked[3]
CSA C22.2#107.1ClaimedListed when checked[3]
CALIFORNIA Rule 21ClaimedListed when checked[3]
Hawaiian HECO SRD-IEEE-1547.1:2020 Ed.2.0ClaimedListed when checked[3]
CECClaimedListed when checked[7]
CECClaimedListed when checked[7]

Documents and sources

  1. SunGoldPower PowerCore 18K-48 product identityPaid link.Official product feed · Revised Not stated · Checked https://sungoldpower.com/products.json?limit=250&page=1
  2. SGS-12K18MAX_Hybrid_Solar_Inverter_Data_Sheet.pdfOfficial datasheet · Revised Not stated · Checked https://cdn.shopify.com/s/files/1/0323/4090/2025/files/SGS-12K18MAX_Hybrid_Solar_Inverter_Data_Sheet.pdf?v=1786611478
  3. SGS-12K18MAX_Solar_Hybrid_Inverter_user_manual.pdfOfficial instruction manual · Revised Not stated · Checked https://cdn.shopify.com/s/files/1/0323/4090/2025/files/SGS-12K18MAX_Solar_Hybrid_Inverter_user_manual.pdf?v=1786610400
  4. SGS12K18MAX_UL1741_certificate_of_compliance.pdfOfficial certificate · Revised Not stated · Checked https://cdn.shopify.com/s/files/1/0323/4090/2025/files/SGS12K18MAX_UL1741_certificate_of_compliance.pdf?v=1776322097
  5. 12KW 48V All-in-one Hybrid Solar inverter | Whole Home Backup (200A)| SGS-12K18MAX, SunGoldPower product page (September 23, 2026 capture)Paid link.Official product page · Revised Not stated · Checked https://sungoldpower.com/products/12kw-48v-all-in-one-hybrid-inverter
  6. SunGoldPower store product data (products.json page 1, 2026-10-27 capture)Paid link.Official product feed · Revised Not stated · Checked https://sungoldpower.com/products.json?limit=250&page=1
  7. CEC Grid Support Inverter Lists (solar and battery inverters), official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026)Issuer record · Revised October 1, 2026 · Checked https://solarequipment.energy.ca.gov/Home/DownloadtoExcel?filename=InvertersList