Mastervolt Mass 48/50 - 48 Volt 50 Amp Marine Battery Charger. For the Toughest Tasks.


Mass battery chargers are designed for toughest conditions in professional, semi-professional and recreational purposes. Even under the most extreme conditions the products from the Mass series operate faultlessly, giving you round-the-clock output when necessary.

The sustainability and technologies that underpin the Mass concept have long been proven in practice. With an MTBF (mean time between failures) of 280,000 hours at full capacity and 24/7 use, the Mass products are ideal for the toughest tasks and any situation that requires a reliable power supply.

Features of Mastervolt Mass 48/50

-Designed for the most difficult conditions.
-Lightweight, stainless steel, anodised aluminium casing.
-Coating of internal components prevents damage from damp or condensation to ensure a longer lifespan.
-Insensitive to electromagnetic effects from other devices.
-Suitable for every type of battery, also charges entirely empty batteries.
-Delivered as standard with temperature sensor.
-Full power at temperatures of up to 45˚C.
-Load capacities from 80 to 1000 Ah or more.
-Stable power supply of 24 and 48 V, even without batteries.
-Load sharing possible in case of limited power supply.
-Parallel switching possible using multiple battery chargers.
-Customised monitoring and controls at any location.
-Fast and easy installation with MasterBus, Mastervolt’s single cable system.
-Reliable charger/supply for GMDSS.
-Certified by Germanisch Lloyd, Lloyd, Bureau Veritas (24/75 & 24/100 models only) and RRR, RS; connections in accordance with CE, ABYC A-31 and IEC60945.
-Type approval for application in safety zones A, B and C.

For Professional Use: GMDSS

Professional users will benefit from a front display with GMDSS (Global Maritime Distress and Safety System) alarm functions. The GMDSS is an internationally agreed-upon set of safety procedures, types of equipment, and communication protocols that is a requirement for the SOLAS (Safety Of Life At Sea) convention and uses DSC and satellite communication.

Made Tough by Smart Design

The E-mark Certified Mass battery chargers are extremley strong, designed to withstand heavy vibrations and shocks. Their top quality components meet the highest possible specifications, while the smart and extra robust mounting adds to a professional end result.

MasterBus Compatible

All you need is a single cable with one connection, which means fast and easy installation, plus centralised monitoring, configuration and operation of your system with a MasterView panel. The Mass battery charger is fully MasterBus compatible.