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Mass 24/50-2
Mass battery chargers are designed for the toughest conditions for 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 of 180,000 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.
Powerful selling points:
- Designed for the most difficult conditions
- Lightweight, stainless steel, anodized 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 ËC
- Load capacities from 80 to 1000 Ah or more
- Stable and ripple free 24 and 48 V power supply, even without batteries
- The Current Control function prevents the breakdown of fuses when the voltage drops
- Parallel switching possible using multiple battery chargers
- Connections in accordance with CE, ABYC A-31 and IEC60945
- Certified by RRR, RMRS (does not apply to 24/75 120 V)
- Certified by DNV GL (only 24/25, 24/50, 24/75, 24/75 (120 V, 24/100 models)
- Certified by Lloyd (only 24/75, 24/100 models)
For professional use: GMDSS
Professional users will benefit from a front display with GMDSS alarm functions GMDSS stands for Global Maritime Distress and Safety System, 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.
This front display is only available for Mass 24/25-2 DNV, Mass 24/50-2, Mass 24/75, Mass 24/75 (120 V), Mass 24/100 and Mass 24/100-3ph.
Charging Lithium Ion batteries
Although Lithium Ion batteries are increasingly popular, there can be a lack of clarity when it comes to the charging process. This is not a problem with Mastervolt as the Mastervolt battery chargers communicate directly with the Lithium Ion battery via the integrated MasterBus (or have been adapted to the required charging voltages).
MasterBus compatible
Mass battery chargers can be easily connected to a MasterBus network with only one cable and one connection. You can also choose central, local or remote monitoring, configuration and control of your system.
Made tough by smart design
The certified Mass battery chargers are very strong, designed to withstand heavy vibrations and shocks. Their premium quality components meet the highest possible specifications, while the smart and extra robust mounting adds to the professional end result.
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Owner's Manual (pdf)
FAQs
Product & Usage
1. Are KRANK tools built for professional use?
Yes, all our tools are engineered for heavy-duty performance and long-term reliability.
2. Are KRANK tools safe to use for beginners?
Yes, our tools are designed with safety features and easy handling in mind.
3. Can KRANK tools be used in extreme conditions?
Yes, they are tested to perform reliably in demanding environments.
Maintenance & Accessories
1. What maintenance is required for the tools?
Regular cleaning and proper storage are usually enough to keep your tools in top condition.
2. Can replacement parts or accessories be purchased separately?
Yes, we provide compatible parts and add-ons to extend the life of your tools.
3. Do you provide instruction manuals or usage guides?
Every tool comes with a detailed user manual, and digital guides are available online.
Warranty & Guarantee
1. Do the tools come with a warranty?
Every KRANK tool includes a 1-year warranty, with extended options available on select products.
2. How do I register my KRANK tool for warranty coverage?
You can register online using your product serial number for faster support.
3. What does the warranty cover?
It includes defects in materials and workmanship under normal use conditions.
4. Is there an option to extend the warranty?
Yes, extended warranty plans are available for select tools at checkout.
Purchasing & Support
1. How fast is shipping and delivery?
Orders ship within 24 hours, and delivery typically takes 3–5 business days.
2. Do you offer bulk or corporate purchasing options?
Yes, KRANK provides special pricing and packages for business or team orders.
3. How can I contact customer support if I need help?
You can reach our support team by email or phone — we’re here to assist you.
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