Dobrý den, mám dotaz - po vybalení z krabice a připojení do sítě neustále píská a bliká ikona baterie. Tlačítko mute pískání neztiší, ač by podle manuálu mělo. Stav baterie je neustále 25% a pokud UPSku odpojím od sítě, okamžitě se vypne. Klidně bych ji nechal nabíjet, ale díky mpískání to prostě nejde. Dělají mi to dvě nové, současně koupené, UPSky. Mi přijde, jak kdyby nebyla zapojená baterie... Je toto normální stav? Děkuji
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