Mastervolt
Mastervolt Mass 24/25-2 25 AMP 24V Battery Charger [40020256]
Mastervolt Mass 24/25-2 25 AMP 24V Battery Charger [40020256]
Get it between June 09 and June 11.
Low in stock
✓ Used by Hundreds of Customers
✓ Trusted by Sailors Nationwide
✓ Expert Customer Service
✓ Bulk Pricing Available
At MarineXGear, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.
If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.
Refer to our Refunds & Return Policy for more details.
Order Processing
Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.
Please allow 1-3 days for processing your order.
Shipping
We ship to the lower 48 continental United States only at this time.
Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@marinexgear.com.
We will send tracking information by email the same day the shipping tracking number is created/available.
Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and MarineXGear. Once you accept your shipment as non-damage, your item is your property.
![Mastervolt Mass 24/25-2 25 AMP 24V Battery Charger [40020256]](http://marinexgear.com/cdn/shop/files/97572XL.jpg?v=1775877986&width=150)
Mass 24/25-2 25 AMP 24V Battery Charger
The right choice for demanding conditions
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 underpinning the Mass concept have long been proven. 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 aluminum casing.
- Coating of internal components prevents damage from dampness or condensation to ensure a longer lifespan.
- Insensitive to electromagnetic effects from other devices.
- Suitable for every type of battery, it also charges flat batteries.
- It is delivered as standard with a temperature sensor.
- Full power at temperatures of up to 45 degrees.
- Load capacities from 80 to 1000 Ah or more.
- Stable and ripple-free power supply, even without batteries.
- The Current Control function prevents the breakdown of fuses when the voltage drops.
- Parallel switching is possible using multiple battery chargers.
- Connections in accordance with CE, ABYC A-31 and IEC60945.
- GMDSS models and panels available.
- 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).
GMDSS Compatible
The Mass series are designed for the most demanding situations. To help you comply with SOLAS regulations, all Mass battery chargers are GMDSS compatible. GMDSS stands for Global Maritime Distress and Safety System and allows 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 separate remote panel is available, which is compatible with all Mass battery chargers.
A single front display with GMDSS remote panel is available for:
- Mass 24/25-2 DNV
- Mass 24/50-2
- Mass 24/75, Mass 24/100, 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 and 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.
Specifications:
- Nominal output voltage: 24v
- Total charge current: 25a at 28.5v
- Number of battery outlets: 2
- Charge current second output: 2a
- Battery bank size: 50-250 ah
- Nominal input voltage: 230v (180-265v), 50/60 Hz
- Power supply mode: Yes
- Galvanic isolation: Yes
- Display/read-out: LED display
Specifications:
- Charger Input - Voltage: 230v
- Charger Output - Amps: 25a
- Charger Output Voltage: 24v
- Charging Banks: 2
- Portable: No
- Box Dimensions: 8"H x 14"W x 17"L WT: 11.65 lbs
- UPC: 816882020520
Owner's Manual (pdf)
Why Choose MarineXGear
At MarineXGear, we believe true peace of mind on the water starts with having the right equipment. Our mission is simple: to be the trusted destination for premium marine gear and dependable on-water solutions. Every product we carry — whether navigation systems, safety equipment, marine electronics, or boat accessories — is carefully chosen to help you perform at your best, stay safe, and get the most out of every voyage.
A+ Customer-First Approach
We're more than an online store — we're your partner on the water. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you're outfitting a vessel for the first time, upgrading your gear, or need expert advice on a specific product, our specialists are always just a call or email away.
Passion for Wellness & Resilience
Our brand is built on a genuine love for the sea. We live and breathe marine equipment — and when you reach out to MarineXGear, you'll connect with experts who understand both the technical specs of our products and the on-water lifestyle they support.
Trusted Experts, Curated Brands
We partner directly with the most respected names in the marine industry. Our curated selection ensures every product meets our high standards for quality, durability, and performance on the water. With MarineXGear, you shop with confidence, knowing you're investing in proven gear backed by full manufacturer warranties.
More Reasons to Choose MarineXGear
- Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
- Free Shipping – Enjoy free delivery on most orders across the lower 48 U.S. states.
- 100% Secure Ordering – Our platform uses SSL encryption to protect your information.
- Exclusive Packages & Volume Discounts – Customized solutions available for clinics, wellness centers, and large orders.
- Authorized Dealer – Every order is protected with full manufacturer support and warranties.
At MarineXGear, we're committed to keeping you safe, equipped, and confident on the water. With our expertise, personalized service, and carefully curated selection, you can invest in your vessel and your adventures with complete peace of mind.
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