MASS 24/15 - 24V, 15 AMP
- Product SKU: 40020156
- Category: All products, All products 6, Batteries & Battery Chargers, Mastervolt

Even under extreme conditions, The Mastervolt Mass 24/15 battery charger operates faultlessly, giving you round-the-clock output when necessary. MTBF of 280,000 hours at full capacity and 24/7 use. GMDSS alarm functions.
Features- 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.
Technical Specification
Nominal output voltage | 24V |
Total charge current | 15 A |
Number of battery outlets | 2 |
Charge current second output | 3 A |
Battery capacity range | 30-150 Ah |
Nominal input voltage | 230 V (180-265 V), 50/60 Hz |
Supplies your system without battery | yes |
Display/read-out | LED display |
Dimensions, H x W x D |
325 x 220 x 111 mm 12.8 x 8.7 x 4.4 inch |
Weight |
3.3 kg 7.3 lb |
Approvals | CE, ABYC A-31, RRR, RS |
Charge characteristic | IUoUo, automatic 3-step+ for gel/AGM/wet/Lithium Ion |
Charge voltage Bulk | 28.5 V |
Charge voltage Absorption | 28.5 V |
Absorption time | 4 hours |
Charge voltage Float (wet batteries) | 26.5 V |
Charge voltage Float (gel/AGM batteries) | 27.6 V |
Temperature compensation |
-60 mV/ °C -33 mV/ °F |
Voltage compensation | voltage drop compensation in DC cables up to 3 V |
Power consumption (DC side) | < 1 mA |
Full load consumption (230 V AC) | 550 W |
Current Control function | yes, through MasterBus |
Power factor control | ≥ 0.95 |
Temperature range (ambient temp.) |
-25 °C to 80 °C, derating > 45 °C -13 to 176 °F |
Sound level | < 48 dBA at 1 mtr |
Protection degree | IP23 |
CSI/DC alarm | integrated in the battery charger as standard |
Protections | over temperature, over load, short circuit, high/low battery voltage |
Cooling | vario fan |
MasterBus compatible | yes |
Even under extreme conditions, The Mastervolt Mass 24/15 battery charger operates faultlessly, giving you round-the-clock output when necessary. MTBF of 280,000 hours at full capacity and 24/7 use. GMDSS alarm functions.
Features- 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.
Technical Specification
Nominal output voltage | 24V |
Total charge current | 15 A |
Number of battery outlets | 2 |
Charge current second output | 3 A |
Battery capacity range | 30-150 Ah |
Nominal input voltage | 230 V (180-265 V), 50/60 Hz |
Supplies your system without battery | yes |
Display/read-out | LED display |
Dimensions, H x W x D |
325 x 220 x 111 mm 12.8 x 8.7 x 4.4 inch |
Weight |
3.3 kg 7.3 lb |
Approvals | CE, ABYC A-31, RRR, RS |
Charge characteristic | IUoUo, automatic 3-step+ for gel/AGM/wet/Lithium Ion |
Charge voltage Bulk | 28.5 V |
Charge voltage Absorption | 28.5 V |
Absorption time | 4 hours |
Charge voltage Float (wet batteries) | 26.5 V |
Charge voltage Float (gel/AGM batteries) | 27.6 V |
Temperature compensation |
-60 mV/ °C -33 mV/ °F |
Voltage compensation | voltage drop compensation in DC cables up to 3 V |
Power consumption (DC side) | < 1 mA |
Full load consumption (230 V AC) | 550 W |
Current Control function | yes, through MasterBus |
Power factor control | ≥ 0.95 |
Temperature range (ambient temp.) |
-25 °C to 80 °C, derating > 45 °C -13 to 176 °F |
Sound level | < 48 dBA at 1 mtr |
Protection degree | IP23 |
CSI/DC alarm | integrated in the battery charger as standard |
Protections | over temperature, over load, short circuit, high/low battery voltage |
Cooling | vario fan |
MasterBus compatible | yes |
Shipping within the US
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Damages
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We will replace defective products with an exchange for the same model and style ONLY.
If your parcel is left without a signature and damage is found, please contact us within 48 hours at (305)999-5212 or via email at info@mmarineonline.com. Your package should be unopened, unused and remain in the condition in which it was delivered until you successfully report a claim with MMarine Online.
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All warranty claims should be made directly with the manufacturer, with the exception of Vitrifrigo warranty claims which will be initiated with MMarine Online. Should you require any assistance, we're more than happy to help establish contact with the manufacturer to assist you with the initiation of your claim and/or inquiry. If you require further support please call (305)999-5212 or email us at info@mmarineonline.com