Charge for any occasion or V5 Car Jump Starter 21000mah

    Today we are considering a compact multifunctional car starter V5 Car Jump Starter 21000mah, designed to start a car engine with a depleted onboard battery or recharge electronic gadgets, including laptops.


    What is a Car Jump Starter (launcher) and what it can do:
    • start internal combustion engines by scrolling the starter with or without an onboard battery (the latter is not recommended). It is mainly intended to create an additional “push” to the main battery when starting in severe frosts, when the on-board battery is very discharged and its current output is not enough to start the engine;
    • “Light up” a neighbor, without risking to burn the electronics of his car;
    • power electrical consumers rated for 12 V - carrying lamps for 12 V / 40-60 W, amplifiers, radio tape recorders in places where there is no electricity;
    • power laptops or various chargers, thanks to the presence of an additional DC port and many adapters;
    • charge smartphones or tablets, thanks to the presence of USB ports 5V / 2.1A (no more than 3A);
    • built-in flashlight and alarm will not allow you to stay in the dark, as well as give an alarm.


    • Model: V5 Car Jump Starter
    • Battery Type: Li-Pol (3S 11.1V)
    • Capacity: 21000mah
    • Starting current / peak current: 400A / 750A
    • Input Connector: DC Port 3.5mm (from AC adapter or cigarette lighter)
    • Output connectors: power EC5 12V (crocodiles) / 2 USB ports - 5V / 2.1A (3A maximum for two ports) / DC Port 5mm (12V / 2A, 16V / 3.5A, 19V / 3.5A)
    • Charge time: 5 hours
    • Indication of capacity: digital in percent
    • Additional functions: emergency alarm portable flashlight (1W, glow and strobe)
    • Dimensions of the starting device: 175x85x35 mm
    • Launcher weight: 585 grams

    Contents of delivery:

    The package bundle is simply gorgeous - adapters, cables and adapters are more than enough for any task. The kit includes both a network adapter and a car adapter, which is inserted into the cigarette lighter socket and is designed to charge the starting device from the vehicle's on-board network:

    • V5 Car Jump Starter 21000mah Car Starter
    • Power wires with crocodiles
    • Network adapter (12 / 1A) with adapter for Euro plug
    • Car cigarette lighter adapter
    • Universal USB cable
    • Cable and 8 adapters for DC Port
    • Instruction manual

    A car launcher is supplied in a plastic case of fairly high quality. There are colorful stickers on the front and back with brief characteristics and capabilities of the device:

    Inside the box there is a plastic form that divides the internal space into compartments. Each subject has its own place:

    But the instruction is very meager and is framed in the form of a FAQ “question-answer”:

    Appearance of the starting device:


    The case is made of durable plastic with a soft touch coating. The main controls and displays are located on the front edge. On the back there is a sticker with the main characteristics:

    Sizes and weight:

    The dimensions of the car launcher are quite compact, only 175x85x35mm, due to which many people perceive this gadget as a toy that is unable to start the car engine:


    Here is a more visual comparison: The

    weight of the launcher is only 585 grams, so we can conclude that the manufacturer is more likely with the capacity of all, I deceived, because the capacity of an honest model Li-Pol 3S assembly at 5000mah is about 550 grams:

    Power connectors and wires:

    Complete power wires with medium quality crocodiles, solid C grade:

    Power connector - model EC5, with protection against improper switching on, holds 120A current without problems: The

    spring of the crocodiles is quite rigid, there are plastic sides to protect against accidental short circuit, t .k. The power connector is always live. The contact of the power wires and crocodiles is not soldered, but simply squeezed from one of the contact plates, the second plate does not participate in the electrician:


    The cross section of the power wires is very small, it is not suitable for high currents. The wires are marked 10AWG:


    Having looked at the conversion tables of the American Wire Gauge (AWG) into an understandable metric system, we can conclude that the analogue is the cross-section of a core of 5.26 mm2 with a diameter of 2.6 mm:

    Somewhere, it is, although it is purely visual A bit more. When disassembling the protective module, you can find 4 Schottky 42CTQ030S power diodes, rated for 40A each:

    Who cares, here's the datasheet for the diodes:

    They are designed to protect the battery of the starting device from charge from the vehicle’s onboard battery and generator, since the maximum for them 12.6V with balancing on banks, and the generator produces an average of about 14.4V. The main requirement for diodes is to withstand inrush current.

    Low current connectors and wires:

    One of the most useful features of this starting device is an additional DC output connector with a choice of voltage - off, 12V / 2A, 16V / 3.5A and 19V / 3.5A, so it is possible to power laptops, netbooks or various chargers:


    V There are many adapters that cling to the cable adapter DC "male" - DC "male":


    Well, there are two standard USB ports of 5V / 2.1A each, although the maximum limit for both is 3A. A universal cable is included for charging electronic gadgets:


    Charging the starting device:

    This starting device supports charging both from the mains adapter and from the car adapter, by connecting to the vehicle's on-board network through the cigarette lighter. The network adapter is rated at 15V / 1A. American plug, adapter present, wire length about a meter:

    The car adapter has a replaceable fuse and a wire length of about 1 meter:

    Charging time from 0% to 100% about 5 hours. When charging, the “IN” icon flashes in the lower corner of the display; when charging is complete, it simply lights up. The manufacturer does not recommend using the engine start function with a starting device charge level of less than 30%, although there is no protection, the Li-Pol battery is connected directly to power crocodiles. Just in case, there is a hint - the remaining capacity below 30% is lit in red, not green:

    Features for managing additional functions:

    1) the flashlight has three modes: glow, Strob and SOS, turns on when the button 5 is pressed for a long time, the mode is changed by briefly pressing the button 5

    2) the motherboard EC5 power connector is used to connect power wires, it is closed with a silicone plug

    3 to protect against accidental short-circuit ) the display serves to display the residual battery capacity in percent, briefly display the total output current for USB ports, the current output voltage of the DC port and the operating mode (charge / discharge)

    4) the output DC connector has 4 adjustments: de-energized, 12V / 2A, 16V / 3.5A and 19V / 3.5A, switching by button 5 (cyclically in a circle)

    5) The multi-function button is designed to control independent output ports and flashlights. With a single quick press - the output voltage of the DC port changes, with a long press, the flashlight turns on, with a double quick press, the emergency light is activated

    6.7) USB output connectors of 5V / 2.1A each. The maximum total current should not exceed 3A

    8) input 3.5 mm DC jack, designed to charge the built-in Li-Pol battery

    9) additional functionality power switch - flashlight, alarm, DC and USB ports. If inactive for 20 seconds, the launcher enters sleep mode.


    A closer look reveals a high-current Li-Pol battery marked SK P9050135X 11.1V:

    Control board in more detail:



    The main lamp is a 1W LED soldered to a small scarf. The light from the flashlight is bright and wide, for most tasks it should be enough:


    The alarm system is represented by four LEDs closed by red glass:

    When a load of 1.6A was connected, the capacity passed through the 10-bit charging doctor Matek turned out to be about 11850mah, while at idle the starting device issued 5.05V, and under load the voltage sagged to 4.74V:


    Well, then, a significant discrepancy in capacity, it's a pity. A current of 2A for this starting device is not a problem - an excellent solution for recharging your gadgets away from the outlet. As an example, the charge of a Digma e-book:

    Thanks to the multi-band DC port, you can power various devices, the main thing is to choose the desired voltage - 12V / 16V / 19V. In our case, setting the output to 19V, you can start the laptop without any problems:

    The voltage on a freshly charged battery is 12.6V, on average it varies from 11V to 12V.

    Order of use:

    1) We inspect the battery for leaks, because water has a bad property to expand when freezing.

    2) We connect the power wires: a red crocodile with a positive battery terminal, black - with an unpainted part of the car chassis.

    3) We connect the power connector from the crocodiles to the socket of the car launcher.

    4) We start the car.

    5) disconnect the power connector and remove the crocodiles.

    Starting the car engine with a completely dead battery:


    The device performs its functions, and this is important. Of the advantages, one can note a good capacity in comparison with similar devices (with the same size and price), rich equipment, a durable box for long-term storage and the presence of a display that displays the current mode and remaining capacity in percent, as well as a bright flashlight and an alarm.

    A good bonus is the presence of a large number of output connectors: two USB ports (5V / 2.1A) and a DC port (12V / 2A, 16V / 3.5A and 19V / 3.5A), ease of disassembly and modernization. But the disadvantages are not so simple - the power wires and the protection module are not designed for a serious load, therefore, without proper revision, you should not try to start the “voluminous” diesel engine in good frost. And of course, the lowered capacity, although there are honest 5-5.5Ah there and they will last for a dozen launches.

    The price difference is striking, for example, a kit with a plug for European outlets costs $ 30 more than a kit for American ones, which can be purchased for $ 65.06 ( * ). And then just buy an adapter for $ 1.49 ( * ).

    That's all, with you there was a simple service for choosing complex Dronk.Ru equipment . Do not forget to subscribe to our blog and YouTube channel , there will be many more interesting things.

    ps * - you can return up to 5% of the purchase price by purchasing goods from these links.
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