Planning to purchase a portable charging station? Here are 6 key factors you should pay attention to
June 21, 2024
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Since choosing a portable charging station remains quite a difficult task, Techno 24 has prepared a guide consisting of six important elements to consider when purchasing such a
Since choosing a portable charging station remains quite a difficult task, Techno 24 has prepared a guide consisting of six important elements to consider when purchasing such a station.
Battery capacity
Battery capacity is the most important feature of a portable power station. Larger capacity allows you to use the device for longer on a single charge.
Different manufacturers use different numbers to measure battery capacity, such as mAh (milliampere-hours), A-hours (ampere-hours), W-hours (watt-hours), and kWh (kilowatt-hours). Check the watt-hour rating to determine how long a power plant can power your devices.
For example, a 40,000 mAh battery in a 12-volt system equals 480 Wh, which provides about 5 hours of operation for a 90 Wh laptop.
battery technology
Battery type significantly affects the size, weight, cost, charging speed and performance of the power plant. The most common types include:
lead-acid: Heavy, has a short lifespan and high self-discharge.
lithium polymer (Li-Po) and lithium-ion (Li-Ion): Medium weight and life cycle, environmentally toxic.
Lithium-iron-phosphate (LiFePO4): The best option with high thermal stability, good energy density and long life.
Here is a table comparing each battery type:
lead-acid
Lithium-ion (Li-ion)
Lithium-polymer (Li-Po)
Lithium iron phosphate (LiFePO4)
energy density
Low
High
High
Temperate
Lifecycle
Low (200-500 cycles)
High (500-1000 cycles)
Medium (300-600 cycles)
Too high (2000-3000 rpm)
Weight
Heavy
lungs
lungs
lungs
Price
Low
High
High
High
Security
High risk of leaks/spills
Safe but may overheat/burn
Medium, sensitive to shocks
Very safe, heat resistant
Service
Requires regular maintenance
Unpretentious in care
Virtually maintenance free
Virtually maintenance free
Competence
Low (70-80%)
High (90-95%)
High (90-95%)
High (95%)
Self-discharge level
High (5-15% per month)
Very low (1-2% per month)
Low (3-5% per month)
Very low (1-3% per month)
Impact on the environment
High (toxic materials)
Medium (toxic materials)
Medium (toxic materials)
Low (non-toxic, recyclable)
According to the table above, LiFePO4 is the best type of battery for portable power plants due to its high thermal stability, good energy density and efficiency, light weight and long service life.
Li-Ion and Li-Po batteries are close, but are moderately toxic to the environment and have a much shorter lifespan than LiFePO4 batteries.
inverter technology
Power inverters are electrical components that convert your battery’s direct current into alternating current. Direct current is used to charge battery-powered portable devices such as phones, tablets, and Bluetooth headsets, while alternating current is used to power more energy-intensive devices such as laptops, computers, televisions, and game consoles.
There are generally two types of inverters: pure sine wave inverters And modified sine wave inverters.
Pure sine wave inverters provide pure sine waves that produce alternating current.
Modified sine wave inverters use pulse width modulation (PWM), which creates an electronic signal that attempts to mimic a pure sine wave.
If you have extremely sensitive equipment (like a boiler), a pure sine wave inverter should be your only option. But if you’ll only be using the charging station to power your computer, monitors, console, and TV, a modified sine wave inverter power station will do just fine while saving you a lot of money.
Peak and sustained power
Understanding peak (pulse) and continuous (rated) power is an important consideration, especially for energy-intensive devices such as refrigerators or appliances.
Most power-hungry devices and equipment require some peak or pulse power just to start them up and turn them on. Once turned on, they require a smaller but constant source of energy, known as constant power or nominal power.
To find out how much maximum and continuous power you need from a portable power station, here is a list of typical devices and their power ratings:
Device/equipment
peak power
Capacity
Freezer
2.200W
700W
air pump
150W
50W
Water pump
2.100W
1000W
Drill-screwdriver
850W
600W
automatic garage
400W
400W
Air conditioning
1.500W
500W
blender
500W
350W
Coffee machine/Tea machine
1.600W
800W
Projector
270W
220W
gaming computer
600W
400W
Power output ports
Another important factor to consider when shopping for a new portable charging station is the types of output ports it has. Some of the more important output ports may be as follows:
USB ports for charging: Preferably with power supply (PD) for fast charging. Vehicle charging port (12V): For working with 12 V devices. Power outlets (AC): Some stations offer UPS functionality for seamless power replacement. special connectors: Several separate dedicated connectors may be provided at the station for high current devices such as starter motors to start cars or power supply devices such as routers.
A good charging station should have at least three USB ports, two electrical outlets, and an Anderson lamppost or vehicle connector.
Power input ports
Note the multiple options for recharging the station in addition to the standard AC charger; It is better if the station has the ability to charge from solar panels and a car charger.
The output of power from solar panels is especially useful for active recreation in nature or in emergency situations.
The ability to charge quickly is also an advantage because it reduces idle charging time and ensures your station is ready to use when needed.
Make sure the station meets your basic needs before purchasing. Avoid unnecessary features like NFC and wireless charging if they don’t add real value to your usage.
By focusing on these six key factors, you can choose a durable and reliable portable power station that will power your devices anytime, anywhere.
I’m Sandra Torres, a passionate journalist and content creator. My specialty lies in covering the latest gadgets, trends and tech news for Div Bracket. With over 5 years of experience as a professional writer, I have built up an impressive portfolio of published works that showcase my expertise in this field.