How Do You Provide Backup Power for an RV TV and Router?

Provide backup power for an RV TV and router by measuring their combined running watts, calculating how many hours each device will operate, and choosing a power source with enough delivered watt-h...

How Do You Measure a Refrigerator's Startup Surge?

The safest practical method is to use a plug-in power meter that is rated for the refrigerator and can capture startup or peak power. A qualified person can also use a true-RMS clamp meter with an ...

How Do You Calculate the Total Load for Multiple Devices?

Add the running watts of every device that may operate at the same time, then test the largest startup event separately. Calculate daily energy by multiplying each device's average watts by its ope...

How Does Solar Input Power Affect Charging Speed?

Higher actual solar input usually shortens charging time, but only until the power station's voltage, current and wattage limits are reached. Charging time also depends on battery capacity, startin...

What Does a Battery Management System Do in a Portable Power Station?

A battery management system (BMS) monitors battery voltage, current and temperature, estimates state of charge, coordinates cell balancing where designed, and limits charging or discharging when co...

How Does Depth of Discharge Affect Battery Lifespan?

Depth of discharge (DoD) is the percentage of a battery's capacity removed during a use cycle. Deeper cycles generally create more stress than shallower cycles, but battery lifespan also depends on...

What Do Battery Cycle Counts Mean for a Portable Power Station?

A battery cycle count estimates how many equivalent full charge-discharge cycles a battery can complete before reaching a stated remaining capacity under specified test conditions. “4,000 cycles to...

What Is the Difference Between Pure Sine Wave and Modified Sine Wave Power?

A pure sine wave inverter produces a smooth AC waveform similar in shape to utility power, while a modified sine wave inverter creates a stepped approximation. Many simple loads can operate on eith...

How Do You Create a Fair Comparison Chart for Portable Power Stations?

  A fair portable power station chart compares the same type of value in every column: base-unit capacity, continuous output, stated surge behavior, AC voltage, charging limits, expansion range, we...

Which Devices Should Get Backup Power First During an Outage?

During a power outage, protect health and safety first, then communications, refrigeration and essential household equipment. Lighting, phones and medical or accessibility devices normally belong i...

Official Security Notice: How to Identify Authentic OUPES Products and Avoid Fake Websites

At OUPES, consumer safety, satisfaction, and transparency are our top priorities. Recently, our security team identified unauthorized, fraudulent websites (such as oupespowers.com and other...

1. What is Direct and Alternating Current?

Explain the two ways that electrons move,  and how they are used in our daily lives.

2. What are Volts, Amps, and Watts?

An explanation of volts, amps, and watts, and how to calculate electricity with them.

3. What is Parallel and Series Connection?

An explanation of parallel and series connections, and how they affect solar systems.

4. The Main Parts of A Solar System

An introduction to the components in a solar system, and how a solar system works.

5. How to connect these components safely and efficiently

Explain the uses of wiring and fuse in a solar energy system, and how to choose their size.

6. 12V, 24V, and 48V: Which Voltage Is Best for Your Solar Power System?

How to calculate your energy needs and loads, and the differences between various voltage solar systems.

7. Main Types Of Solar Batteries

Features of different battery types and how to choose the suitable one.

8. Two Major Types of Solar Charge Controller

Difference between PWM controllers and MPPT controllers, and which one to choose.

9. Two Main Types of Inverters

Difference between MSW inverters and PSW inverters, and which one to choose.