DBPOWER 600A 18000mAh Portable Car Jump Starter, Battery Booster and Phone Charger - Model DJS50

DBPOWER DJS50 is versatile, lightweight and compact, portable car jump starter that may also be used as battery booster, phone/tablet/laptop battery charger, as flashlight and it even feature magnetic compass.

DBPOWER DJS50 is easy and simple to use, yet safe and powerful enough to start gas engines up to 6.5 liters and diesel engines up to 5.2 liters, making it suitable for most family cars, light trucks, boats and yachts.

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DBPOWER DJS50 Portable Car Jump Starter Features and Specifications

DBPOWER DJS50 is rather compact unit with physical dimensions of 7.3 x 3.4 x 1.5 inches (18.5 x 8.5 x 3.8 cm) and can be easily carried in one hand and stored even in the glove compartments.

Unit is designed to provide 300 Amps of output current with 600 Amps of peak current.

Energy is stored in 18Ah (18000 mAh) 3.7 volts lithium ion battery which is able to store 66.6 Wh of energy and to start 6.5 liters gas and 5.2 liters diesel engines up to 20 times on the single battery charge.

Built-in safety features include over-current protection, short circuit protection, over-load protection, over-voltage protection, and over-charge protection. Nonetheless, feel free to use this (and similar car jump starters), but don't abuse them!

DBPOWER DJS50 features small LCD screen that display all relevant information to the user like battery charge, unit condition etc.

Additional features include 5V (2.1 A) USB port, 5V (2.4 A) Smart USB port, laptop charger (using 8-in-1 connector), flashlight (normal mode, SOS mode, strobe mode, red emergency light) and compass.

Note: when charging laptops, turn the unit on and press the power button to cycle through available charging voltages (12V, 16V, 19V).

DBPOWER DJS50 is charged via 15V/1A DC input port using either wall charger or car charger (both are included).

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Personally, having power bank able to charge smartphones, tablets and similar devices is great, but car jump starters are car jump starters and draining their batteries because they were used to charge various gadgets may be dangerous if you are on some fishing/camping/hiking trip - DBPOWER DJS50 battery must be charged 30% or more to be able to start the engine.

Since the battery is lithium-ion, for safety reasons it is delivered semi-charged. So, when the unit arrives, first read the manual and then charge the battery fully.

When the unit is being stored, be sure that it is turned OFF! Turned Off unit may be stored for 3 months without adverse effects on the battery charge - after which it is recommended to recharge it again.

Note: some users report that even after a year, their DBPOWER DJS50 report >90% battery charge, which is great, but nonetheless, for you peace of mind, recharge it every three months.

Some users report that their batteries are almost completely discharged after just few weeks - again, turn the unit Off when storing it ...

Few important notes:

- if you try to start engine that feature larger displacement than recommended, that can damage the unit, despite all the safety features - so don't do it.

- when starting the engine, don't crank it for longer than three (3) seconds.

- DBPOWER DJS50 is able to crank engines up to 20x on the single battery charge. But, if the starting process is not successful, wait at least a minute between cranking attempts - this is very important for the battery to cool down.

- after starting the engine, don't charge the DBPOWER DJS50 right away - let it cool down fully for at least 25-30 minutes before recharging.

- DBPOWER DJS50 is able to start the engine even when the main car battery is deeply discharged - when the cables are connected to the battery, if the indicator lights flashes red and green, press the booster button for 3 seconds and try to start your vehicle in the next 30 seconds.

DBPOWER DJS50 comes with 3-year warranty, which is good warranty for such unit.


dbpower djs50 600a jump starter mLong Story Short: DBPOWER DJS50 is one of the most popular portable car jump starters. It is versatile and most importantly reliable unit, simple and safe to use.

Personally, additional features are great, just be sure not to discharge the battery too low - nobody needs discharged main car/boat battery and discharged car jump starter battery.

For most up-to-date offers and prices, check DBPOWER DJS50 600A 18000 mAh Portable Car Jump Starter Amazon link (link opens in the new window).