Exclusive to Patona are the batteries from the Protect series. These are characterized by a casing that is fire-retardant and extremely heat-resistant. It has been specifically designed for extreme continuous use. The battery casing made from fire-retardant V1 material ensures resistance to casing temperatures of up to 90 degrees without deforming. Additionally, only selected high-performance cells from reputable brands are used for the battery. The Patona Protect series is a revolution in the battery market, combining extremely high safety and performance with durability. Furthermore, as with the original battery, NTC resistors (negative temperature coefficient) are installed on the battery circuit board, which control temperature management and automatically shut down in case of overheating.