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The right choice for demanding conditions Mass battery chargers are designed for harsh conditions in professional, semi-professional, and recreational settings. The products in the Mass series continue to perform flawlessly at all times, even under harsh conditions. When needed, they deliver full output power 24 hours a day, day in and day out. The durability and technology of the Mass concept have now been amply proven. With an MTBF (Mean Time Between Failures) of 180,000 hours at full power and 24/7 use, Mass products are ideal for heavy-duty work and all situations where a reliable power supply is an absolute must. Rock-solid advantages Built for the toughest conditions. Housing made of lightweight, rust-resistant, anodized aluminum. Coating of internal components prevents moisture and condensation damage and guarantees a long service life. Immune to electromagnetic interference from other devices. Suitable for any type of battery; also charges completely dead batteries. Comes standard with a temperature sensor. Full power at temperatures up to 45% DAC. Charging capacity for 80 to 1000 Ah or more. Stable and ripple-free power supply, even without a battery. The Current Control function prevents fuses from blowing, even during voltage drops. Parallel connection possible for multiple battery chargers. Connections comply with CE, ABYC A-31, and IEC60945. GMDSS models and panels available. Certified by RRR, RMRS (does not apply to Mass 24/75 120 V). Certified by DNV GL (models 24/25, 24/50, 24/75, 24/75 (120 V), and 24/100 only). GMDSS Compatible The Mass series is designed for demanding situations. To comply with SOLAS regulations, all Mass battery chargers are GMDSS compatible. GMDSS stands for Global Maritime Distress and Safety System, and enables users to monitor various alarm functions. GMDSS versions of the Mass 24/25 DNV, Mass 24/50, Mass 24/75, Mass 24/100, and Mass 24/100-3ph are available. A remote control panel compatible with all Mass battery chargers is available. A separate front display with a GMDSS remote control panel is available for: Mass 24/25-2 DNV Mass 24/50-2 Mass 24/75, Mass 24/100, and Mass 24/100-3ph Charging Lithium-Ion Batteries Lithium-Ion batteries are rapidly gaining popularity, but one of the uncertainties surrounding this new technology is charging. This is not a problem with Mastervolt because Mastervolt battery chargers communicate directly with the Lithium-Ion battery via the integrated MasterBus (or are adapted to the required charging voltages). MasterBus compatible Mass battery chargers can be connected to a MasterBus network with a single cable and a single connection. In addition to being super easy to install, this also allows you to monitor, configure, and control your system centrally, locally, or remotely. Extremely robust thanks to smart and solid design The certified Mass battery chargers are extremely robust. The design withstands severe vibrations and shocks. The high-quality materials are manufactured to the highest specifications. The assembly is smart and exceptionally solid, delivering a professional end result.