{"product_id":"bigbattery-apex-6-5k-off-grid-inverter","title":"BigBattery APEX-6.5K Off-Grid Inverter","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(50, 149, 66);\"\u003e\u003cstrong\u003eBigBattery APEX-6.5K Off-Grid Inverter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 class=\"content__summary-title\"\u003e\u003cstrong\u003eProduct Summary:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp data-start=\"186\" data-end=\"458\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"190\" data-end=\"230\"\u003eBigBattery APEX 6.5K Hybrid Inverter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a rugged, off-grid-ready solution engineered for\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"283\" data-end=\"315\"\u003ereliable energy independence\u003c\/strong\u003e. Delivering\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"328\" data-end=\"374\"\u003esplit-phase 120\/240V pure sine-wave output\u003c\/strong\u003e, it efficiently powers homes, cabins, and remote systems with clean, stable energy.\u003c\/p\u003e\n\u003cp data-start=\"460\" data-end=\"748\"\u003eDesigned to work seamlessly with modern\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"500\" data-end=\"527\"\u003eLiFePO₄ battery systems\u003c\/strong\u003e, the APEX 6.5K supports both\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"557\" data-end=\"587\"\u003esolar and generator inputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor continuous, all-day operation. With an\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"631\" data-end=\"651\"\u003e80A pass-through\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor large appliances and critical loads, it ensures dependable performance when it matters most.\u003c\/p\u003e\n\u003cdiv class=\"bb-see-more\" id=\"bb-see-more-1\"\u003e\n\u003cdiv class=\"bb-see-more-content\"\u003e\n\u003cp data-start=\"750\" data-end=\"987\"\u003eBuilt for real-world conditions, the APEX features a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"803\" data-end=\"839\"\u003edurable, outdoor-ready enclosure\u003c\/strong\u003e, wide operating temperature range, and installer-friendly design-making it a reliable, efficient choice for off-grid and backup power applications.\u003c\/p\u003e\n\u003cp data-start=\"989\" data-end=\"1115\"\u003e\u003cstrong data-start=\"1011\" data-end=\"1026\"\u003eShips From:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTexas, USA\u003cbr data-start=\"1042\" data-end=\"1045\"\u003e\u003cstrong data-start=\"1045\" data-end=\"1058\"\u003eWarranty:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5 Years\u003cbr data-start=\"1066\" data-end=\"1069\"\u003e\u003cstrong data-start=\"1069\" data-end=\"1081\"\u003eSupport:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLifetime USA-Based Tech Support\u003c\/p\u003e\n\u003ch5 data-section-id=\"18fxkdn\" data-start=\"1122\" data-end=\"1142\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1125\" data-end=\"1142\"\u003eCompatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp data-start=\"1364\" data-end=\"1402\"\u003e\u003cstrong data-start=\"900\" data-end=\"953\"\u003eClosed-Loop Communication with Batteries (Off Grid Non-UL 9540 Installs)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBigBattery NEXUS, ETHOS, HUSKY2 INV\u003c\/p\u003e\n\u003cp\u003eEG4 280Ah All Weather, 280Ah Indoor, 314Ah All Weather, 314Ah Indoor\u003c\/p\u003e\n\u003cp data-start=\"1252\" data-end=\"1277\"\u003e\u003cstrong data-start=\"1252\" data-end=\"1277\"\u003ePower Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWorks with 48V battery systems\u003c\/p\u003e\n\u003cp\u003eSupports off-grid and hybrid installations\u003c\/p\u003e\n\u003cp\u003eCompatible with solar + generator input setups\u003c\/p\u003e\n\u003ch5 data-section-id=\"1j5qwet\" data-start=\"1382\" data-end=\"1401\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1385\" data-end=\"1401\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul data-start=\"1403\" data-end=\"2140\"\u003e\n\u003cli data-section-id=\"awpg75\" data-start=\"1403\" data-end=\"1489\"\u003e\n\u003cstrong data-start=\"1405\" data-end=\"1427\"\u003e6.5kW Output Power\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Reliable energy for residential and off-grid applications\u003c\/li\u003e\n\u003cli data-section-id=\"h8mhop\" data-start=\"1490\" data-end=\"1574\"\u003e\n\u003cstrong data-start=\"1492\" data-end=\"1523\"\u003eSplit-Phase 120\/240V Output\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Powers both standard and heavy-duty appliances\u003c\/li\u003e\n\u003cli data-section-id=\"3yq9pj\" data-start=\"1575\" data-end=\"1658\"\u003e\n\u003cstrong data-start=\"1577\" data-end=\"1602\"\u003ePure Sine Wave Output\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Clean, stable electricity for sensitive electronics\u003c\/li\u003e\n\u003cli data-section-id=\"1q6l5m4\" data-start=\"1659\" data-end=\"1741\"\u003e\n\u003cstrong data-start=\"1661\" data-end=\"1688\"\u003eSolar + Generator Input\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Flexible energy sources for continuous operation\u003c\/li\u003e\n\u003cli data-section-id=\"1tmd1wd\" data-start=\"1742\" data-end=\"1821\"\u003e\n\u003cstrong data-start=\"1744\" data-end=\"1775\"\u003e80A Pass-Through Capability\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Supports high-demand loads and appliances\u003c\/li\u003e\n\u003cli data-section-id=\"1iwi7mn\" data-start=\"1822\" data-end=\"1900\"\u003e\n\u003cstrong data-start=\"494\" data-end=\"523\"\u003eIndoor Installation Ready\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Designed for installation in garages, utility rooms, and protected environments\u003c\/li\u003e\n\u003cli data-section-id=\"z80mtg\" data-start=\"1901\" data-end=\"1974\"\u003e\n\u003cstrong data-start=\"1903\" data-end=\"1929\"\u003eWide Temperature Range\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Reliable performance in varying climates\u003c\/li\u003e\n\u003cli data-section-id=\"1671lhg\" data-start=\"1975\" data-end=\"2058\"\u003e\n\u003cstrong data-start=\"1977\" data-end=\"2006\"\u003eInstaller-Friendly Design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Bottom-entry wiring for simplified installation\u003c\/li\u003e\n\u003cli data-section-id=\"100mrky\" data-start=\"2059\" data-end=\"2140\"\u003e\n\u003cstrong data-start=\"2061\" data-end=\"2089\"\u003eSmart Protection Systems\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Built-in safeguards for safe, stable operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA\u003cspan\u003e \u003c\/span\u003e\u003cb\u003edurable, off-grid-ready inverter\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ebuilt for flexibility, reliability, and true energy independence.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eDownloads \u0026amp; Specifications\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cdiv class=\"table-header\"\u003e\n\u003ch2\u003eInverter Specifications\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-body table-single\"\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eDocument Title:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K \u0026amp; APEX 10K INVERTER SPECIFICATIONS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eBrand:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eBigBattery\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eModel:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K \/ APEX-10K\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eGTIN\/UPC(APEX-6.5K\/APEX-10K):\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e00199874185712 \/ 00199874999463\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\u003cspan class=\"row-key\"\u003eInverter Output\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eRated Output Power:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 6,500W; APEX-10K: 10,000W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Output Power:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 13,000VA; APEX-10K: 20,000VA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eRated Output Voltage:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e120\/240 Vac (single-phase \/ split-phase)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eLoad capacity of motors:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 4 HP; APEX-10K: 6 HP\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eRated Frequency:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e50\/60Hz\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eOutput Wave:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003ePure sine wave\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSwitching Time:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e10ms (typical value)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eVoltage Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e40–60Vdc\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Solar Charging Current:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 140A; APEX-10K: 200A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Grid \/ Generator Charging Current:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 80A; APEX-10K: 120A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Hybrid Charge Current:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 140A; APEX-10K: 200A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSection:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eSolar input\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eNo. of MPPT:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e1 + 1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Input Power:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 5,000W + 5,000W; APEX-10K: 5,000W + 5,500W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Input Current:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 18A + 18A; APEX-10K: 22A + 22A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Open Circuit Voltage:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e550Vdc + 550Vdc\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMPPT Voltage Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e125–450Vdc\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\u003cspan class=\"row-key\"\u003eGrid\/Generator Input:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eInput Voltage Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e65–140Vac\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eInput Frequency Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e50\/60Hz\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eBypass Overload Current:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 40A; APEX-10K: 63A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eAC Inputs:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 2 inputs (Grid \u0026amp; Generator); APEX-10K: 1 input (Grid or Generator)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSection:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eEfficiency\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax. Efficiency:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e99.9%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMPPT Tracking Efficiency:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 93%; APEX-10K: 92%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eParallel Capacity:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eUp to 6 units (3 or more units in parallel can form a three-phase output)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSection:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eGeneral data\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eDimension:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 25.51 × 16.14 × 5.51 inches; APEX-10K: 28.46 × 17.64 × 5.91 inches\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eWeight:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAPEX-6.5K: 48 lbs; APEX-10K: 62 lbs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eProtection Degree:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eIP20 (indoor only)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eTemperature:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e14–131°F, derate above 113°F\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eExternal Module (Optional):\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eWi-Fi \/ GPRS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCertificate:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eUL1741 \/ RoHS \/ EN61000-6-1 \/ EC61000-6-3 \/ FCC Part15 Class B \/ IEC62109-1 \/ IEC62109-2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eNoise:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e\u0026lt;60dB\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCooling Method:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eIntelligent fan\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eWarranty:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e5 years\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCommunication:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eRS485 \/ CAN \/ USB \/ Dry contact\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eIntegrated Circuit Breaker:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eUtility \/ Load \/ Battery \/ PV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSection:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eOverload protection\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eOverload protection behavior:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eAfter overload protection is enabled, the inverter output will be restored after 3 minutes, and after 5 times of overload, the output will be off until the inverter is restarted. (102% \u0026lt; APEX-10K load \u0026lt; 110%): an error will be reported and the output will be turned off after 5 minutes. (110% \u0026lt; load \u0026lt; 125%): an error will be reported and the output will be turned off after 10 seconds. Load \u0026gt; 125%: an error will be reported and the output will be turned off after 5 seconds.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eProtection features:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eHas PV input current limiting protection, PV input over-voltage protection, PV night reverse current protection, AC input over-voltage protection, AC input under-voltage protection, battery over-voltage protection, battery under-voltage protection, battery over-current protection, AC output short-circuit protection, heat sink over-temperature protection, inverter over-load protection.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cdiv class=\"table-header\"\u003e\n\u003ch2\u003eInverter Downloads\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-body\"\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSKU#:\u003c\/span\u003e\u003cspan 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