Name: SAKO Alpha W ESS 300W Energy Storage System
Brand: SAKO
SKU: 6594
Availability: InStock

SAKO Alpha W ESS 300W Energy Storage System

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Key Features

Portable Power Solution: Weighing only about 3.7 kg and measuring 25.5 × 18.5 × 20.0 cm, the SAKO Alpha ESS 300W is easy to carry for outdoor adventures or emergency kits.

High-Capacity Lithium-ion Battery: The 288Wh (12.8V / 22.5Ah) high‑quality lithium‑ion cell provides ample energy for laptops, lights, and small appliances.

Pure Sine Wave AC Output: Two 230V pure sine wave AC outlets deliver 300W continuous (600W peak) power, safely running sensitive electronics.

Versatile DC and USB Ports: Includes a 12V/10A car port, two 12V/3A DC5521 ports, dual USB‑A (5V/2.4A each), a QC3.0 USB‑A, and a USB‑C PD port up to 60W for fast device charging.

Fast and Flexible Charging: Charge via AC adapter (90W) in 4‑5 hours, solar panel (60W) in 5‑6 hours, or car charger in 5‑6 hours, giving multiple recharging options.

Long Battery Cycle Life: Designed for 800+ cycles while retaining 80% capacity, ensuring years of reliable use.

Wide Operating Temperature Range: Operates from -10°C to 40°C during discharge and 0°C to 40°C while charging, suitable for most climates.

Intelligent LCD Display: The smart LCD shows battery level, input/output power, and remaining runtime at a glance.

Comprehensive Protection System: Built‑in BMS safeguards against overcharge, over‑discharge, over‑current, over‑voltage, short‑circuit, and over‑temperature.

Certified Safety and Compliance: Meets CE, FCC, RoHS, and PSE standards, guaranteeing safe operation and international quality.

Specification

Model Name	SAKO Alpha ESS 300W Energy Storage System
Battery Type	High-Quality Lithium-ion Battery
Battery Capacity	288Wh (12.8V / 22.5Ah)
AC Output (Pure Sine Wave)	2 x 230V, 50Hz, 300W (Continuous), 600W (Peak)
DC Output - Car Port	1 x Car Port: 12V/10A
DC Output - DC5521 Ports	2 x DC5521 Ports: 12V/3A each
USB-A Output	2 x USB-A: 5V/2.4A (Max 12W per port)
USB-A QC3.0	1 x USB-A QC3.0: 5V/3A, 9V/2A, 12V/1.5A (Max 18W)
USB-C Output	1 x USB-C PD: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A (Max 60W)
DC Input (Charging)	12-24V/3.75A (Max 90W) - for AC Adapter or Solar Panel
USB-C PD Input (Charging)	60W Max
Charging Time (AC Adapter)	Approx. 4-5 hours (with 90W adapter)
Charging Time (Solar Panel)	Approx. 5-6 hours (with 60W solar panel in full sun)
Charging Time (Car Charger)	Approx. 5-6 hours
Battery Cycle Life	800+ cycles to 80% capacity
Operating Temperature	Charge: 0°C to 40°C; Discharge: -10°C to 40°C
Display	Smart LCD Screen (Battery Level, Input/Output Power, Remaining Runtime)
Protection Systems	BMS (Overcharge, Over-discharge, Over-current, Over-voltage, Short-circuit, Over-temperature)
Dimensions (L x W x H)	25.5 cm x 18.5 cm x 20.0 cm
Weight	Approximately 3.7 kg
Certifications	CE, FCC, RoHS, PSE

Description

SAKO Alpha W ESS 300W Energy Storage System

Key Features & Benefits:

Portable Power Solution: Weighing only about 3.7 kg and measuring 25.5 × 18.5 × 20.0 cm, the SAKO Alpha ESS 300W is easy to carry for outdoor adventures or emergency kits.
High-Capacity Lithium-ion Battery: The 288Wh (12.8V / 22.5Ah) high‑quality lithium‑ion cell provides ample energy for laptops, lights, and small appliances.
Pure Sine Wave AC Output: Two 230V pure sine wave AC outlets deliver 300W continuous (600W peak) power, safely running sensitive electronics.
Versatile DC and USB Ports: Includes a 12V/10A car port, two 12V/3A DC5521 ports, dual USB‑A (5V/2.4A each), a QC3.0 USB‑A, and a USB‑C PD port up to 60W for fast device charging.
Fast and Flexible Charging: Charge via AC adapter (90W) in 4‑5 hours, solar panel (60W) in 5‑6 hours, or car charger in 5‑6 hours, giving multiple recharging options.
Long Battery Cycle Life: Designed for 800+ cycles while retaining 80% capacity, ensuring years of reliable use.
Wide Operating Temperature Range: Operates from -10°C to 40°C during discharge and 0°C to 40°C while charging, suitable for most climates.
Intelligent LCD Display: The smart LCD shows battery level, input/output power, and remaining runtime at a glance.
Comprehensive Protection System: Built‑in BMS safeguards against overcharge, over‑discharge, over‑current, over‑voltage, short‑circuit, and over‑temperature.
Certified Safety and Compliance: Meets CE, FCC, RoHS, and PSE standards, guaranteeing safe operation and international quality.

Ideal For:

Campers and outdoor enthusiasts needing reliable off‑grid power
Homeowners seeking backup power during outages
Remote workers and digital nomads requiring portable charging for laptops and devices
Travelers on road trips who want to power car accessories and electronics
Small business owners running point‑of‑sale or portable equipment
Emergency responders and disaster relief teams
DIY hobbyists and makers powering tools and prototypes

Summary:

The SAKO Alpha W ESS 300W Energy Storage System delivers 288Wh of lithium‑ion power in a compact 3.7 kg package, featuring pure sine wave AC, multiple DC and USB ports, and fast 60W USB‑C charging. With up to 800+ cycles, a smart LCD display, and robust BMS protection, it suits campers, home backup users, remote workers, and small businesses alike. Certified to CE, FCC, RoHS, and PSE standards, this versatile power station is available now at Revolution Technology BD.