The MUST FCDG12-100 gel battery is a reliable and durable power source for standby and backup power systems. With a capacity of 100 Ah and a nominal voltage of 12 V, this model is designed to accumulate and deliver stable power under intensive use. Thanks to GEL (gel electrolyte) technology, the battery offers increased safety, deep discharge, and minimal maintenance, making it the ideal choice for mission-critical applications. This battery is designed for use in solar and wind power systems, uninterruptible power supplies (UPS) for boilers, security systems, and server equipment, as well as as a traction battery for electric cars, outboard motors, and other portable electrical equipment. It addresses key challenges: providing long-term autonomous power, protecting equipment from sudden power outages, accumulating excess energy from renewable sources, and ensuring stable operation in cyclic mode (charge-discharge). The device is suitable for home craftsmen, country house owners, power supply engineers, telecommunications specialists, and alternative energy specialists. - GEL technology (gel electrolyte) for complete tightness and protection against leaks- Possibility of deep discharge without critical loss of capacity- Low self-discharge for long-term storage in a charged state- Operation in any position due to non-liquid electrolyte- Does not require regular maintenance or adding water- High cyclic resistance for frequent charges and discharges- Resistance to vibrations and mechanical impacts- Wide operating temperature range for use in unheated rooms- Robust and reliable terminals for safe connection Specifications:• Model: FCDG12-100• Battery type: lead-acid, gel (GEL), maintenance-free• Nominal voltage: 12 V• Nominal capacity: 100 Ah (at a 20-hour discharge mode)• Energy capacity: approximately 1200 Wh• Charging voltage: 14.4 - 14.9 V (recommended for cyclic use)• Recharge voltage (compensation): 13.6 – 13.8 V (recommended for buffer mode)• Maximum charging current: up to 25 A• Dimensions (L x W x H): 330 mm x 220 mm x 170 mm• Weight: 28 kg• Case type: monoblock, impact-resistant plastic• Operating temperature range: from -20°C to +50°C (optimally +20°C) The MUST FCDG12-100 gel battery is an investment in the stability and independence of your power system. Its key advantages are absolute safety, unpretentiousness and predictability of operation throughout its entire life cycle. This battery will become the heart of your backup system, guaranteeing power to important consumers when it is needed most.