288wh Portable Power Supply System for Camping and Outdoor Adventures

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Product Description

📋 Basic Info.
Model NO.
ESS-300W
Discharge Rate
Medium Discharge Rate
Shape
Square Battery
Electrolyte
Li-ion
Installation
Fixed
Rechargeable
Chargeable
Battery Capacity
288wh
Battery Type
LiFePO4
Weight
3.5kg
Origin
China
Product Introduction
LEJ-ESS 300W Portable Power Station

The LEJ-ES 300W is compact, versatile, and ultra-safe, ideal for outdoor enthusiasts, remote workers, and home users. It provides reliable off-grid power for camping, emergencies, DIY, and mobile office setups.

Utilizing a Lithium Iron Phosphate (LiFePO4) battery, known for thermal stability and longevity, it offers protection against overvoltage, undervoltage, overcurrent, short circuits, and overtemperature, with over 2,500 charge cycles.

The station delivers 300W rated power, 450W peak, and features a pure sine wave inverter. It offers AC, USB-A, USB-C, 12V/25A DC, and wireless charging. Includes a 3W LED light and UPS function with a sub-20ms switch time.

🌟 Applications
• Camping and Picnic Power Supply
• Road Trip Electronics Charging
• Fishing and Outdoor Photography
• Beach Party and Entertainment
• Home Emergency Backup
• Essential Medical Devices
• Power Tool Use for DIY
• Mobile Office for Remote Workers
• Drone Operation and Recharging
• Construction Site Lighting
⚙️ Technical Specifications
ModelLEJ-ESS-300W
Battery capacity288Wh
Battery typeLiFePO4
Operating temperatureCharging: 0 ~ 40℃ / Discharge: -10 ~ 40℃
AC Output300W (Peak 450W)
USB-C PD3.05V/9V/12V/20V 5A (Max 100W)
Wireless Charging15W
Weight3.5kg
Specification Detail Internal Structure Port Details
🏢 Company Profile

As a leading manufacturer, we ensure precision and quality in state-of-the-art factories. Our commitment includes comprehensive support—from consultation to after-sales service—ensuring peak performance. Our global partners value our efficient results in challenging environments.

Why Choose Us?
  • OEM/ODM capabilities
  • Competitive pricing & bulk discounts
  • Fast shipping & customs support
  • Professional project solutions
FAQ
Q1: How can I get the price and place an order?
A: Send an inquiry for details, we'll quote and prepare PI. After confirmation, make payment, and we'll deliver in 7 days.
Q2: Can I buy samples? What is the MOQ?
A: Yes, sample orders are welcome. Our Minimum Order Quantity (MOQ) is 1 PC.
Q3: What is your lead time for shipping?
A: It depends on order quantity. Small orders ship within 3-10 days; large quantity orders take 10-25 days.
Q4: What payment terms do you accept?
A: We accept T/T, Western Union, L/C, PayPal, and other major payment methods.
Q5: What are the available shipping methods?
A: Products can be shipped by sea, air, or express (EMS, UPS, DHL, TNT, FEDEX). Please confirm with us before ordering.
Q6: Does the power station support solar charging?
A: Yes, it supports triple-input fast charging via AC, solar (MPPT), and car sockets.

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