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Comparison Smartbuster T240 vs GT S14

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Smartbuster T240
GT S14
Smartbuster T240GT S14
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Specs
Battery voltage
12 В
12 В
Rated starting power400 А300 А
Peak output current800 А600 А
Built-in battery capacity16800 mAh14000 mAh
Charging gadgets (outputs)
DC connector for gadgets
General
Built-in cigarette lighter
Built-in flashlight
Power source12/230 В12/230 В
Size167x81x31 mm
Weight0.68 kg0.42 kg
Added to E-Catalogoctober 2019january 2018
Compare Smartbuster T240 and GT S14
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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.

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.

Built-in battery capacity

Capacity of the own battery provided in the design of the starter-charger.

As a rule, boosters and launchers with a power bank function are equipped with their own batteries (see “Type”). The main purpose of such a battery from the point of view of helping to “light up” is to provide the power necessary to start the engine. However, in some models the battery is responsible for other functions, such as the built-in compressor or flashlight. The larger the battery capacity, the longer the device can operate, and the more tasks it can perform on a single charge.

In starting devices with the powerbank function, this parameter is also given to estimate how much energy the battery can accumulate and then transfer to connected gadgets. It is important to consider that there is a nominal (declared) and real capacity - the latter is always less, because it takes into account the inevitable losses during energy conversion. Typically the difference is from 30 to 40%, i.e. a model with a conventional battery capacity of 10,000 mAh will not fully charge a smartphone with a 3,000 mAh battery three times, but at best will provide two power cycles, because in practice its working capacity is about 6,000 mAh. Therefore, it is not entirely correct to compare the mAh values of your gadget’s battery with the nominal capacity of the built-in battery - you should definitely take into account that the real capacity is always less than the “rated” one.

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.

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.