The battery is compatible with the following models: Olympus OM-1, OM1. This battery replaces the following original battery types: BLX-1, BLX1, and exclusively available at Patona are batteries from the Protect series. These are characterized by a housing that is flame-retardant and extremely heat-resistant. It has been specifically designed for extreme continuous use. The battery housing made of flame-retardant V1 material ensures resistance to housing 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 mounted on the battery circuit board, which control temperature management and automatically shut down in case of overheating.