All-in-One Portable Energy Storage: The SAKO ESS 300W 900Wh Portable Power Station provides reliable, fuel-free backup power for homes, offices, remote work, and outdoor activities.
High-Capacity 896Wh (900Wh) LiFePO₄ Battery: Built on the SAKO Alpha portable energy storage platform with an intelligent Battery Management System (BMS) for safe, long-lasting performance.
300W Pure Sine Wave Output: Delivers clean 185–230V AC electricity (600W peak) safe for sensitive electronics such as laptops, Wi-Fi routers, LED lights, smartphones, and small fans.
MPPT Solar & AC Grid Charging: Equipped with an integrated MPPT solar charge controller (10V–55V DC range) alongside standard 230V AC wall charging.
Ideal for Bangladesh: Lightweight (9.8 kg), silent, and fume-free—making it an indoor-safe backup solution for apartments and offices during frequent load-shedding across Bangladesh.
The SAKO ESS 300W 900Wh Portable Power Station (SAKO Alpha ESS-300W / RES-300W-900Wh series) is a compact, all-in-one lithium energy storage solution designed to deliver uninterrupted power wherever grid electricity is unstable or unavailable. It integrates a 896Wh (900Wh class) $\text{LiFePO}_4$ lithium battery pack, a 300W Pure Sine Wave inverter, and an integrated MPPT solar charge controller into a lightweight, portable enclosure that stores electrical energy from standard AC outlets or solar panels and converts it into clean AC and DC power.
This power station is built for homeowners, remote professionals, students, small office setups, field technicians, and outdoor travelers who need immediate plug-and-play electricity without bulky lead-acid battery racks or noisy fuel generators. In Bangladesh, frequent load-shedding and apartment restrictions on petrol or diesel generators make silent, zero-emission backup systems essential. The SAKO ESS 300W 900Wh delivers instant, fume-free backup power tailored for everyday Bangladeshi household and workstation needs.
300W Pure Sine Wave Inverter (600W Peak): Produces clean 185–230V AC, 50Hz grid-quality power that protects sensitive electronics—such as laptops, routers, LED TVs, and medical devices—from voltage distortion and electrical noise.
896Wh (900Wh Class) $\text{LiFePO}_4$ Battery Pack: Built with high-density Lithium Iron Phosphate cells (3.2V nominal, 280Ah) offering superior thermal stability and extended cycle life compared to lead-acid batteries.
Integrated MPPT Solar Charge Controller: Supports a 10V–55V DC MPPT voltage range (up to 300W max solar charging) for efficient daytime solar recharging.
Intelligent Smart BMS: Continuously monitors battery voltage, current, and thermal conditions to prevent overcharge, over-discharge, over-voltage, under-voltage, over-current, short circuits, and overheating.
Multi-Port AC & DC Output: Features AC output outlets alongside USB-A (5V) and USB Type-C ports for charging smartphones, routers, and DC lamps simultaneously.
Smart LCD Display & LED Indicators: Real-time monitoring of battery State of Charge (SOC), charging mode, and operating alerts.
High Conversion & Charging Efficiency: Integrated MPPT solar tracking and combined utility/solar charging (up to 400W max charging power) minimize energy loss and speed up battery replenishment.
Ultra-Compact & Lightweight Construction: Measuring just 280 × 230 × 150 mm and weighing only 9.8 kg, it features an ergonomic carrying handle and a corrosion-resistant enclosure for effortless portability.
Multi-Layer Electronic Protection: Built-in smart BMS safeguards both the internal $\text{LiFePO}_4$ battery cells and connected appliances against electrical faults.
Energy Saving & Maintenance-Free: Eliminates recurring fuel expenses, engine oil changes, and distilled water top-ups associated with conventional generators or tubular IPS systems.
Residential: Uninterrupted power for Wi-Fi routers, laptops, smartphones, LED bulbs, table fans, and small entertainment devices during load-shedding.
Commercial & Office: Backup power for workstations, POS machines, networking switches, IP cameras, and small office electronics.
Industrial & Field Projects: Portable power supply for testing instruments, field communication gear, mobile inspections, and temporary site setups.
Outdoor & Emergency Use: Dependable off-grid electricity for camping, travel, mobile clinics, and emergency preparedness kits.
| Specification | Details |
| Model | ESS-300W-900Wh (Alpha RES-300W-900Wh Series) |
| Brand | SAKO |
| Rated Power | 300W Continuous (600W Peak) |
| Battery Capacity | 896Wh (900Wh Class) $\text{LiFePO}_4$ (3.2V / 280Ah) |
| Voltage | AC Output: 185–230V AC | AC Input: 230V AC (Max 300V AC) | PV MPPT: 10–55V DC |
| Current | Max Charge / Discharge Current: 130A (Battery Side) | USB Output: 5V / 1A–2A |
| Frequency | 50Hz Output (45–65Hz AC Input) |
| Efficiency | High-Efficiency Pure Sine Wave Inverter & MPPT Solar Charge Controller |
| Protection | Intelligent Smart BMS (Overcharge, Over-discharge, Over-voltage, Under-voltage, Over-current, Short Circuit & Over-temperature Protection) |
| Dimension | 280 × 230 × 150 mm (L × W × H) |
| Weight | 9.8 kg (Net Weight) / 10.8 kg (Gross Weight) |
| Operating Temperature | -10°C to +50°C (5%–95% Non-Condensing Humidity) |
| Warranty | Official Manufacturer Warranty Applicable. |
✓ 300W Pure Sine Wave AC output (600W peak surge capacity)
✓ High-capacity 896Wh (900Wh class) $\text{LiFePO}_4$ lithium battery
✓ Built-in MPPT solar charge controller (10V–55V DC range)
✓ Intelligent Smart BMS multi-layer safety protection
✓ Lightweight (9.8 kg) & ultra-compact (280 × 230 × 150 mm)
✓ Smart LCD display with USB-A and USB Type-C ports
✓ Silent, zero-emission, indoor-safe operation
Eliminates Fuel & Maintenance Costs: Operates without petrol, diesel, or engine servicing, reducing long-term backup power expenses.
Keeps Essential Work & Internet Online: Ensures uninterrupted Wi-Fi, laptop, and lighting power during load-shedding for remote workers and students.
Safe for Apartments & Indoor Spaces: Zero exhaust fumes and quiet operation make it ideal for urban flats and offices in Bangladesh.
Protects Valuable Electronics: Pure Sine Wave technology (185–230V AC, 50Hz) prevents damage or humming in sensitive electronic adapters and devices.
Installation Requirements:
No electrical wiring, wall mounting, or technician installation is required.
Place the unit on a flat, dry, stable indoor surface with clear space around the intelligent cooling fan vents.
For solar charging, connect compatible solar panels within the 10V–55V DC MPPT operating range (max 56V open-circuit voltage) following proper polarity guidelines.
Maintenance Tips:
Keep ventilation vents clean and free from dust accumulation to ensure proper heat dissipation.
Wipe the outer casing with a dry, soft cloth; avoid water or harsh chemical cleaners.
When storing the unit unused for extended periods, recharge it periodically to maintain healthy $\text{LiFePO}_4$ battery levels.
Safety Instructions:
Keep the power station away from rain, high moisture, direct water contact (keep humidity within 5%–95% non-condensing), and open heat sources.
Operate strictly within the rated ambient temperature range of -10°C to +50°C.
Do not exceed the 300W continuous rated output limit by connecting high-wattage heating appliances (such as electric irons, kettles, or room heaters).
Never disassemble, puncture, or short-circuit the internal $\text{LiFePO}_4$ battery pack.
Q: What is the price of SAKO ESS 300W 900Wh Portable Power Station in Bangladesh?
A: The price of the SAKO ESS 300W 900Wh Portable Power Station in Bangladesh varies based on current stock and promotional offers. Please check the live product listing on loopshop.com.bd or contact our sales team for the latest official price.
Q: Where can I buy SAKO ESS 300W 900Wh Portable Power Station in Bangladesh?
A: You can purchase the genuine SAKO ESS 300W 900Wh Portable Power Station online directly from loopshop.com.bd with nationwide delivery across Bangladesh.
Q: What warranty does this product have?
A: This product comes with a 2-year official warranty. Please refer to the warranty details on the product page or contact Loopshop customer support for full terms and coverage.
Q: Is this suitable for Bangladesh climate?
A: Yes, the SAKO ESS 300W 900Wh is rated for operating temperatures from -10°C to +50°C and 5%–95% non-condensing humidity, making it well-suited for indoor environments across Bangladesh.
Q: How to install this product?
A: No installation is required. Simply unbox the power station, charge it fully using a 230V AC wall outlet or compatible solar panel, and plug your devices directly into the output ports.
Q: What devices can the SAKO ESS 300W 900Wh power?
A: It can run devices up to 300W continuous load (600W peak), such as Wi-Fi routers, laptops, smartphones, LED bulbs, table fans, cameras, and small medical or office electronics.
Q: Can I charge the SAKO ESS 300W 900Wh with a solar panel?
A: Yes, it features a built-in MPPT solar charge controller supporting a 10V–55V DC MPPT range (56V max open-circuit voltage, up to 300W solar input).
Q: How heavy and compact is the SAKO ESS 300W 900Wh?
A: The unit has compact dimensions of 280 × 230 × 150 mm and a net weight of only 9.8 kg, making it easy to carry anywhere.
Q: Does it provide Pure Sine Wave output?
A: Yes, it features a 300W Pure Sine Wave inverter (185–230V AC, 50Hz) that provides clean, stable electricity safe for sensitive modern electronics.
Q: What type of battery is inside the SAKO ESS 300W 900Wh?
A: It uses a high-safety 896Wh (900Wh class) $\text{LiFePO}_4$ (Lithium Iron Phosphate) battery pack protected by an Intelligent Smart BMS.
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