Comparison Alligator JS841 vs Alligator JS840
Add to comparison |  |  |
|---|---|---|
| Alligator JS841 | Alligator JS840 | |
| Expecting restock | Outdated Product | |
| TOP sellers | ||
| Device | booster | booster |
Specs | ||
| Battery voltage | 12 В | 12 В |
| Rated starting power | 300 А | 400 А |
| Peak output current | 600 А | 800 А |
| Built-in battery capacity | 16000 mAh | 16000 mAh |
Charging gadgets (outputs) | ||
| USB-A | 2 pcs 5В/2.4А 12 W | 1 pcs 5В/2.4А 12 W |
| USB-A (fast charge) | Quick Charge 1 pcs 5В/3А, 9В/2А, 12В/1.5А 18 W | |
General | ||
| Built-in flashlight |  | |
| Power source | 230 В | 230 В |
| Added to E-Catalog | february 2025 | december 2023 |
Compare Alligator JS841 and JS840
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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.