Special Features

• Portable Power Station, high capacity in compact size.
• Pure sinewave AC output with Lithium-ion battery bank.
• Power 99% of your home appliances.
• Scalable output power from 1K to 3K
• 60A-80A built-in AC and Solar charger.
• Super-fast recharge, 0-90% in one hour.
•  AC outlets, 4 DC outputs, terminal block for 1K/3K.
• Dual inputs, grid and solar.
• Built-in battery management system (BMS).

Key Features

• 1500W Pure Sine Wave Output – Stable and safe for sensitive electronics
• High-Capacity Lithium Iron Battery (1280Wh, 100Ah) – Long-lasting, reliable performance
• Dual Charging – Supports 
• Charging from solar panels and AC utility
• Advanced Protections – Safeguards against overcharge, over-discharge, short-circuit, overcurrent, and overheating
• Smart Indicators – LED status lights for SOC (battery level) and system status
• Silent & Efficient – Operates at <40dB noise level, suitable for indoor use
• Versatile Outputs – USB, DC power jacks, and AC output for multiple device compatibility

Technical Specifications

Inverter / Charger

• Inverter Type: 1.5KW / 12V
• Rated Output Power: 1.5KW
• Output Voltage Waveform: Pure Sine Wave
• Output Voltage: 230Vac 50Hz
• Low DC Warning Voltage: 11.9Vdc
• Low DC Cut-off Voltage: 11.7Vdc
• Low DC Warning Return Voltage: 12.0Vdc
• Charging Current (Utility and Solar together): 80A Max.
• Bulk Charging Voltage: 14.0Vdc
• Float Charging Voltage: 14.0Vdc

AC Input

• Nominal Input Voltage: 230Vac
• Low Loss Voltage: 170Vac ±7 (UPS), 90Vac ±7 (Appliances)
• Low Loss Return Voltage: 180Vac ±7 (UPS), 100Vac ±7 (Appliances)
• High Loss Voltage: 280Vac ±7
• High Loss Return Voltage: 270Vac ±7
• Max. AC Input Voltage: 300Vac
• Nominal Input Frequency: 50Hz / 60Hz (Auto detection)
• AC Charging Current: 60A Max.

Solar Input

• Nominal PV Voltage: 240Vdc
• PV Array MPPT Voltage Range: 30Vdc ~ 350Vdc
• Max. PV Array Open Circuit Voltage: 400Vdc
• Solar Charging Current: 60A Max.

Battery (Lithium Iron Phosphate)

• Capacity: 1280Wh
• Nominal Battery Voltage: 12.8Vdc
• Typical Capacity: 100Ah
• Max. Charge Current: 50A
• Max. Discharge Current: 100A

Operation Condition

• Operation Voltage Range: 11.2Vdc ~ 14.6Vdc
• Operation Temperature: -10°C ~ +50°C

Protections

• Overcharge / Overdischarge
• Overcurrent
• Short-circuit
• Overtemperature

Environmental

• Noise: <40dB @1m
• Working Temperature: -10°C ~ +50°C
• Humidity: 0~95% (non-condensing)
• Altitude: ≤1500m

Dimension & Weight

• L × W × H (Product size): 450 × 213 × 636 mm
• L × W × H (Package size): 535 × 298 × 721 mm
• Weight (NW Kg): 31.0 Kg
• Weight (GW Kg): 36.0 Kg

Sako Alpha ESS 1500W All-In-One Portable Power Station System is a powerful and reliable solution designed to deliver uninterrupted backup power for residential and small commercial applications. With a high-performance pure sine wave inverter and integrated energy storage, it ensures stable, clean, and safe electricity for sensitive and heavy-duty appliances alike. This all-in-one system features advanced solar and AC charging capabilities, intelligent power management, and seamless compatibility with grid, solar, and generator inputs. Its compact design, high efficiency, and built-in protection mechanisms make the Sako Alpha ESS 1500W an ideal choice for dependable energy independence, daily backup power, and sustainable solar energy solutions.