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Review on BERKUT Specialist JSL-12000 black by Mateusz Rzeczycki ᠌

Revainrating 5 out of 5

Everything in the purchase suits, a very necessary product.

In winter, I rarely use a car, so the battery loses capacity in the cold and it is not always possible to start the engine. Decided to buy this device. I've used it several times already, both with a dead battery and with a completely discharged one. In all cases, the engine started, but only in the “Boost” mode (without it, when trying to start, the dashboard completely went out). Motor 1.6. I also tried to charge the phone with a battery discharged to 20%. After charging the phone, the JSL-12022 still showed 100% charge (although I think that it really was ~ 80% left). A good device, there is always a certainty that the engine will be able to start, but you need to get used to the features of the buttons.

Pros
  • Compact size Ease of connection Can be used as Powerbank Quality build Convenient case
Cons
  • I won’t say that this is a drawback, but there is a possibility that while carrying a case in your hand, you can accidentally press the power button several times, the flashlight will work and drain the battery (there was such a case, since I decided to look at the charge in advance, the flashlight was on, the battery was 25% charged) . The Boost button is very small and slightly recessed, in good frost it is not always clear whether it was pressed or not.