Comparison Alligator JS850 vs Utrai JStar 5
Add to comparison |  |  |
|---|---|---|
| Alligator JS850 | Utrai JStar 5 | |
| Outdated Product | Outdated Product | |
| TOP sellers | ||
Built-in 10W wireless charging. | ||
| Device | booster | booster |
Specs | ||
| Battery voltage | 12 В | 12 В |
| Rated starting power | 2000 А | |
| Peak output current | 4000 А | 2000 А |
| Built-in battery capacity | 24000 mAh | 24000 mAh |
Charging gadgets (outputs) | ||
| USB-A | 1 pcs 5В/2.4А 12 W | 1 pcs 5В/2.1А 10.5 W |
| USB-A (fast charge) | Quick Charge 1 pcs 5В/3А, 9В/2А, 12В/1.5А 18 W | Quick Charge 3.0 1 pcs 5В/2.4А, 9В/2А, 12В/1.5А 18 W |
| DC connector for gadgets |  |  |
| Wireless charger | 10 W | |
General | ||
| Built-in cigarette lighter | | |
| Built-in flashlight | | |
| Built-in compressor | | |
| Power source | 12/230 В | 12/230 В |
| Size | 201x153x77 mm | |
| Added to E-Catalog | october 2025 | december 2024 |
Compare Alligator JS850 and Utrai JStar 5
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Glossary
Rated starting power
Nominal starting current of the starter charger or booster (see "Type").
In this case, it refers to the current that the device can deliver in engine starting mode for a relatively long period (at least 30 seconds, or even more). This indicator should not be lower than the nominal starting current consumed by the car's starter — otherwise, the device simply will not have enough power for effective starter cranking and engine starting. Information about the required starting current can be clarified by the car's documentation or by the specifications of the standard battery used in it. For most passenger cars, this figure ranges from 200 to 400 A; less powerful starting devices are mainly intended for motorcycles and other similar vehicles, while more powerful ones are for buses, trucks, and other heavy equipment, among such "starters" there are models for 400 – 600 A and even over 1000 A.
In this case, it refers to the current that the device can deliver in engine starting mode for a relatively long period (at least 30 seconds, or even more). This indicator should not be lower than the nominal starting current consumed by the car's starter — otherwise, the device simply will not have enough power for effective starter cranking and engine starting. Information about the required starting current can be clarified by the car's documentation or by the specifications of the standard battery used in it. For most passenger cars, this figure ranges from 200 to 400 A; less powerful starting devices are mainly intended for motorcycles and other similar vehicles, while more powerful ones are for buses, trucks, and other heavy equipment, among such "starters" there are models for 400 – 600 A and even over 1000 A.
Peak output current
Peak starting current of the starter charger or booster (see «Type»).
The peak current is the highest current that the device can issue without problems for a short time (1 – 2 seconds). This current is significantly higher than the nominal starting current (see above), which corresponds to the operation of a car starter: as it begins to spin, the starter consumes a very high current that decreases almost immediately.
The peak starting current of the starter charger or booster should not be lower than the peak starting current of the starter. This can be specified in the car's documentation or based on the characteristics of the standard car battery used.
The peak current is the highest current that the device can issue without problems for a short time (1 – 2 seconds). This current is significantly higher than the nominal starting current (see above), which corresponds to the operation of a car starter: as it begins to spin, the starter consumes a very high current that decreases almost immediately.
The peak starting current of the starter charger or booster should not be lower than the peak starting current of the starter. This can be specified in the car's documentation or based on the characteristics of the standard car battery used.
USB-A
Full-sized USB-A connectors are popular in computer technology and are standardly used in chargers-adapters for household 230 V networks and 12 V car sockets. These outputs have also become widespread in starter devices for charging gadgets. These ports are characterized by a low power output, not exceeding 15 W (which is quite sufficient for charging gadgets) and a stable current, which remains constant throughout the charging process.
USB-A (fast charge)
Full-size USB-A ports with fast charging support. This allows you to charge your smartphone, tablet, or other connected device significantly faster. The charging process takes place at increased power, with the current and voltage at each stage regulated (for example, 5V/3A, 9V/2A, 12V/1.5A) to remain within optimal values.
DC connector for gadgets
The presence of a DC connector (or several such connectors) in the device to power external gadgets with direct current.
The standard DC jack is round and has a pin in the centre. And the voltages output to it can be different, the most popular options are 18 – 20 V for powering laptops and 12 V for various specialized devices. A cigarette lighter adapter can be connected to the same socket, see below for more details about it.
The standard DC jack is round and has a pin in the centre. And the voltages output to it can be different, the most popular options are 18 – 20 V for powering laptops and 12 V for various specialized devices. A cigarette lighter adapter can be connected to the same socket, see below for more details about it.
Wireless charger
The power output of the device in wireless charging mode. As the name suggests, this type of charging transfers energy to the device being charged literally "through the air". However, the range of such transfer is only a few centimeters, so the gadget usually has to be placed directly on the ROM. However, it is still much easier and more convenient than fiddling with connecting wires, and the connectors do not wear out.
As for the power, the higher it is, the faster the external device can be charged. Of course, to use all the possibilities of wireless charging, the gadget being charged must also support the corresponding power.
As for the power, the higher it is, the faster the external device can be charged. Of course, to use all the possibilities of wireless charging, the gadget being charged must also support the corresponding power.
Built-in cigarette lighter
The presence of a built-in cigarette lighter in the design of the launcher. Of course, in this case we are not talking about the cigarette lighter itself (a device for igniting cigarettes), but about the characteristic plug for it.
Such a connector today is actually a standard "car socket" used to connect various devices to the car's on-board network. Accordingly, this function allows you to use the charger as a power source for such devices. The number of sockets in different models can also be different — most often there is only one cigarette lighter, but there are options for a couple of connectors. And in some models, the cigarette lighter has the form of a separate adapter that is included in the DC connector.
Such a connector today is actually a standard "car socket" used to connect various devices to the car's on-board network. Accordingly, this function allows you to use the charger as a power source for such devices. The number of sockets in different models can also be different — most often there is only one cigarette lighter, but there are options for a couple of connectors. And in some models, the cigarette lighter has the form of a separate adapter that is included in the DC connector.