Review on BERKUT Specialist JSL-20000 grey/black by Wiktor Krzysztof Kor ᠌

Convenient model, reliable. I had the experience of using the earlier model Berkut, for three years it never let me down. In winter, in the cold, I started the Chevrolet Lacetti 1.6 from the first start. I have not tried to fully charge the battery. Gave away the old one. The battery sat down on self-isolation, I bought a new one ! Remember to charge the batteries once every 3 months and read the instructions carefully. I store in a case and box