OCE-ESS-500W 500W/1kWh Portable All-in-One ESS

OCE-ESS-500W 500W/1kWh Portable All-in-One ESS

Ocean Solar OCE-ESS-500W is a compact portable energy storage system combining a 500W pure sine wave inverter, 1004.8Wh LFP battery, 500W AC charging, 300W MPPT solar charging and backup power functions in one 11kg enclosure.

Designed for low-to-medium power loads, the portable ESS can be used for communication equipment, laptops, lighting, televisions, mobile electronics, small office equipment and compatible outdoor or off-grid loads within the 500W continuous output limit.

A 10-55VDC solar input range, pure sine wave AC output and backup transfer time of up to 20ms provide flexible charging and power-supply options for distributors, rental operators and professional users.

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OCE-ESS-500W Key Specifications

Download OCE-ESS-500W Datasheet

                   OCE-ESS-500W 500W/1kWh Portable All-in-One ESS PDF        

1004.8Wh LFP Battery Capacity

The OCE-ESS-500W provides 1004.8Wh of nominal LFP battery energy within a compact portable enclosure.

The stored energy is intended for compatible low-to-medium power electrical loads where portability and operating time are more important than high AC output power.

Actual usable AC energy and runtime depend on inverter losses, battery operating limits, state of charge, temperature and connected load.

500W Pure Sine Wave AC Output

The integrated inverter provides 500W of rated pure sine wave AC output.

Suitable loads can include compatible laptops, communication equipment, LED lighting, televisions, chargers and other equipment whose combined continuous power remains within the 500W inverter rating.

Appliances with compressors, motors or high startup current should be checked against their actual startup requirements before connection.

500W AC Charging

Maximum published AC charging power is 500W.

The AC input-voltage range is listed as 90-280VAC with a 45-65Hz frequency range, allowing the charging system to operate across a broad range of compatible AC sources.

Actual charging time depends on available input power, battery state of charge, charging control and operating temperature.

300W MPPT Solar Charging

A built-in MPPT controller supports photovoltaic charging at up to 300W.

The published PV operating range is 10-55VDC with a maximum input current of 10A.

Solar module Voc, Vmp, Isc and Imp should be checked before connection to ensure the selected module or array remains within the portable ESS input limits.

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10-55VDC Solar Input Range

The 10-55VDC solar input range supports compatible portable and fixed photovoltaic modules within the electrical input limits of the system.

A suitable PV source should remain within both the voltage range and the 10A maximum input-current rating.

An XT90E-M connection is listed for the photovoltaic input.

Up to 20ms Backup Transfer

The OCE-ESS-500W specification lists a backup transfer time of up to 20ms.

This function can provide rapid transition to battery-backed inverter output for compatible loads when AC input is interrupted.

Equipment with strict continuity requirements should be checked against the equipment manufacturer's permitted transfer time before being used as a critical backup load.

The product should not be treated as a zero-transfer online UPS.

88% Maximum Inverter Efficiency

Maximum inverter conversion efficiency is specified at 88%.

Actual efficiency and available runtime vary with load level, battery state of charge, operating temperature and system conditions.

Universal AC Socket and USB Output

The OCE-ESS-500W provides one universal AC output socket together with one USB output for compatible mobile and low-power electronic devices.

The published USB output is 5V / 1A.

Buyers should confirm the required AC socket version and destination-market electrical requirements when placing an order.

Compact 11kg Portable Design

The OCE-ESS-500W measures 210 × 156 × 356mm and has a net weight of approximately 11kg.

The compact format supports transport between homes, offices, outdoor work locations and other applications where a permanently installed battery system is not required.

Packaging dimensions are 262 × 212 × 412mm with a gross weight of approximately 12kg.

Low-Noise Operation

Published operating noise is below 40dB measured at a distance of one meter.

Actual acoustic performance can vary with charging power, inverter load, internal temperature and cooling conditions.

Integrated Battery Protection

Published protection functions include undervoltage protection, overvoltage protection, short-circuit protection and over-temperature protection.

The protection system monitors electrical and thermal operating conditions and can limit or stop operation when applicable protection thresholds are reached.

Operating and Storage Temperature

The published operating-temperature range is -10°C to +50°C.

Storage temperature is listed from -15°C to +60°C.

Battery charging capability and available output can vary at temperature extremes, so the applicable operating instructions should be followed.

Typical OCE-ESS-500W Applications

Home Backup for Essential Low-Power Loads

The portable ESS can provide stored backup energy for compatible routers, communication devices, LED lighting, laptops and other low-power household equipment during temporary AC power interruptions.

Mobile Office and Remote Work

The 500W pure sine wave output can support compatible laptops, networking equipment and other low-power office electronics where portable battery power is required.

Camping and Outdoor Power

The 11kg portable enclosure and MPPT solar charging input make the unit suitable for compatible lighting, communication, charging and other low-power outdoor applications.

Small Retail and Kiosk Backup

Suitable low-power point-of-sale equipment, communication hardware and lighting can be evaluated where total continuous demand remains within 500W.

Field and Service Equipment

The portable design can support compatible low-power tools, test equipment, chargers and communication devices used at remote or temporary work locations.

How to Select a Solar Panel

The connected photovoltaic source should remain within the 10-55VDC input range, 10A maximum current and 300W maximum solar charging power.

Check the solar module Voc, Vmp, Isc and Imp before connection.

Solar input exceeding the specified voltage or current limits should not be connected to the OCE-ESS-500W.

How to Estimate Portable Power Runtime

Runtime depends on the actual wattage of the connected equipment and the usable AC energy available from the battery.

For example, a lower-power load will normally operate for longer than a load operating close to the 500W inverter limit, but nominal battery energy should not be divided directly by appliance wattage without considering conversion losses and operating conditions.

For project planning, use the actual measured load power and expected operating time to calculate the required watt-hours.

How to Check Load Compatibility

Add the continuous power consumption of all devices that may operate simultaneously and keep the total within the 500W rated output.

Equipment with compressors, pumps, motors, heating elements or other high-power components should be checked carefully before connection.

Device nameplate wattage alone may not represent startup power, so applications with significant inrush current should be evaluated separately.

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For Distributors, Rental Companies and Professional Buyers

The OCE-ESS-500W is suitable for professional procurement where a compact approximately 1kWh portable battery system with 500W AC output is required.

Buyers should provide the destination market, required AC socket configuration, application, expected loads, solar charging requirements and required quantity when requesting a quotation.

For distribution projects, required labeling, plug configuration, documentation and packaging requirements should be confirmed before ordering.

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Frequently Asked Questions About OCE-ESS-500W

What is the battery capacity of the OCE-ESS-500W?

The OCE-ESS-500W has a published nominal battery energy capacity of 1004.8Wh using LFP battery chemistry.

What is the rated AC output power?

Rated continuous AC output is 500W with pure sine wave output.

What devices can a 500W portable power station run?

Compatible equipment can include low-power electronics, lighting, laptops, routers and other devices where combined continuous demand remains within 500W. Equipment with high startup current should be checked separately.

What is the maximum AC charging power?

Maximum published AC charging power is 500W.

How much solar input does the OCE-ESS-500W support?

Maximum solar charging power is 300W through the integrated MPPT controller.

What is the PV input voltage range?

The published photovoltaic input range is 10-55VDC with a maximum input current of 10A.

Can I connect any solar panel?

No. The selected solar module or array must comply with the 10-55VDC input range, 10A maximum current and 300W maximum charging-power limits.

What is the UPS switching time?

The published backup transfer time is up to 20ms.

Is the OCE-ESS-500W a zero-transfer online UPS?

No. The published transfer time is up to 20ms, so equipment with strict continuity requirements should be checked before use.

How long does the battery last on one charge?

Runtime depends on connected load power, inverter losses, battery state of charge and operating conditions. It should be calculated for the specific equipment rather than expressed as a fixed number of hours.

How long does AC charging take?

The product supports up to 500W AC charging. Actual charging time varies with available AC input power, battery state of charge, charging control and temperature.

How much does the portable ESS weigh?

Net product weight is approximately 11kg.

What are the dimensions?

Product dimensions are 210 × 156 × 356mm.

What output connections are available?

The current specification lists one universal AC socket and one USB output.

What protection functions are included?

Published functions include undervoltage protection, overvoltage protection, short-circuit protection and over-temperature protection.

What is the operating temperature range?

The published operating-temperature range is -10°C to +50°C.

Is a solar panel included with the OCE-ESS-500W?

Solar panel inclusion should be confirmed according to the selected order configuration. The portable ESS itself supports compatible PV charging up to 300W.

What information should I provide when requesting a quotation?

Please provide the destination market, required AC socket configuration, expected application, connected loads, solar charging requirements and required order quantity.

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