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Comparison CTECHi ST2000 vs Sigma mobile X-power SI625APS

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CTECHi ST2000
Sigma mobile X-power SI625APS
CTECHi ST2000Sigma mobile X-power SI625APS
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2 USB A ports, 4 USB A Fast Charge ports, 2 USB C ports. LiFePO4 – Lithium Iron Phosphate Battery. Surges up to 3000 W are allowed. Battery capacity is 2074 Wh.
Can be charged from the cigarette lighter 12V/8A, 24V/10A.
In boxcharging stationcharging station
Rated power1800 W2000 W
Peak power3000 W
4000 W /0.5 сек/
Output waveformsinusoid (PSW)sinusoid (PSW)
UPS function
Outputs
Sockets (230 V)2 pcs3 pcs
USB A
2 pcs
5В/2.4А
12 W
2 pcs
5В/2.4А
12 W
USB A (quick charge)
4
5В/3.6A, 9В/2.5A, 12В/2A
24 W
2x QC3.0
 
18 W
USB type C
2 pcs
3 A
60 W
2 pcs
5 A
100 W
Car cigarette lighter
 /12 В / 10 A/
 /12 В / 10 A/
DC output4 шт DC5521 (12 В / 10 A / 120 Вт)2 шт DC5521 (12 В / 3 A)
Inputs (station charging)
From solar panels
 /12 – 48 В/
Input port XT60
 /12 – 65 В / 20 А / 500 Вт/
 /12 В / 10 A/
Add. portsC13/14 (charging)
Battery and charging time
Battery typeLiFePO4LiFePO4
Battery capacity2074 W*h2000 W*h
Charging cycles2000
3500 /DOD>80%/
Charging time (socket) 120 min109 min
Charging time (socket + solar panel) 90 min
Charging time (solar panel) 240 min
Charging power (socket)1100 W
Charging power (solar panel)500 W
Charging power (socket + solar panel)1600 W
General
PSUbuilt into the body
Display
Backlight
Carrying handle
Operating temperature0 °C ~ +40 °C0 °C ~ +40 °C
Dimensions411x260x355 mm392x279x330 mm
Weight32.5 kg22 kg
Added to E-Catalogapril 2023january 2023

Rated power

Power that a device can consistently produce for an indefinitely long time without any unpleasant consequences. For normal operation of the charging station, the rated power must be at least 15 - 20% higher than the total power of all devices simultaneously connected to it.

Peak power

Some electrical appliances (in particular, units with electric motors - refrigerators, air conditioners, etc.) consume significantly more energy at startup than after reaching the operating mode. For such a load, the peak power of the charging station must be taken into account - its indicator must be higher than the starting power of the load.

Sockets (230 V)

Total number of outlets with output voltage. This is, in fact, the number of devices that can be simultaneously connected to the charging station without the use of splitters, extension cords and carriers. Accordingly, weaker charging stations have one or two sockets in their submission. Powerful charging stations already have three or more sockets “on board”.

USB A (quick charge)

Full size USB A ports with fast charging support. It allows you to charge your smartphone, tablet or other connected device much faster. The charging process takes place at increased power, and the current and voltage at each stage are regulated in such a way as to remain within the optimal values. However, it should be borne in mind that in our time there are many fast charging technologies and not all of them are compatible with each other.

- The strength of the current. The parameters of the current issued through the USB A fast charging connectors. Note that different voltage and current parameters can be output to different ports of the charging station. This item specifies the current values at a certain voltage (for example, 5 V / 3 A, 9 V / 2 A, 12 V / 1.5 A).

— Power. The maximum power in watts (W) that the charging station is capable of delivering through the USB A fast charging connector to one charging device. High output power allows you to speed up the charging process. However, the appropriate power must be supported by the device being charged - otherwise the speed of the process will be limited by the characteristics of the gadget.

USB type C

USB type C ports are smaller than classic USBs, and they also have a convenient reversible design that allows you to connect the plug in either direction. USB type C was originally designed to be able to implement various advanced features: increased power supply, fast charging technologies, etc.

Since the port is relatively new and quite powerful (there are USB type C with a power of 60 W and even 100 W), the total number of such connectors is often limited to 1 port, less often two).

- The strength of the power. The maximum power output through the USB type C connector to a charging device. Note that different ports of the charging station can output different power (for example, 1.5 A and 2.1 A). In this case, the highest power strength is usually indicated.

— Power. The maximum power in watts (W) that the charging station is capable of delivering to one rechargeable gadget. The high output power of the USB type C port allows you to speed up the charging process. However, the appropriate power must be supported by the device being charged - otherwise the speed of the process will be limited by the characteristics of the gadget.

DC output

The presence of a DC connector (or several such outputs) in the device to power external gadgets with direct current. The standard DC jack is round and has a pin in the center. However, its dimensions may differ in depth and diameter. The voltage output to the DC output may be different. The most popular options are 18 - 20 V for powering laptops, 12 V for various specialized devices and automotive electrical accessories.

Add. ports

Additional input connectors provided in the design of the charging station in addition to those described above.

Battery capacity

Nominal battery capacity, in fact - the amount of energy that is supposed to be stored. The larger it is, the longer the battery life of the charging station will be, all other things being equal. On the other hand, this parameter also affects the dimensions, weight and price of the battery, despite the fact that an energy-intensive battery is not always required. By the indicator of capacity in watt-hours, you can compare batteries with each other.

Charging cycles

The number of charge-discharge cycles that the battery can withstand without significant loss of performance.

In the process of operation, the batteries wear out, which causes their performance to suffer (in the first place, the capacity decreases). Battery life is usually measured in charge-discharge cycles. However, models with the same declared resource are not always equally durable in practice. Different manufacturers may interpret “significant loss of performance” in different ways: for example, one brand indicates the resource up to a 20% decrease in capacity (DOD > 80%), another - up to a 60% decrease (DOD > 40%) Behind the abbreviation DOD worth decoding Depth of Discharge, i.e. discharge depth. Therefore, when choosing, it makes sense to focus not only on pure numbers, but also on other sources - test results, reviews, etc. Also note that battery life can be noticeably reduced if the operating conditions are violated (for example, in case of overheating or hypothermia).
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Sigma mobile X-power SI625APS often compared