SKU: 40150924361

Mastervolt Mass 24/25-2 25 AMP 24V Battery Charger [40020256]

$611.55 $679.50
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Description

Mastervolt Mass 24/25-2 25 AMP 24V Battery Charger [40020256]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

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)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40150924361

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4.5 ★★★★★
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Lucas Vicars
Los Angeles, US
★★★★★ 4
Good case - not screen protector
Size: Iphone 17 Pro Max, Color: Gray
Case is great as a case. The screen protector? Not so much. Most screen protectors come with their own application tool. This one does not. So you have to do the age old swiping and swiping to get rid of air bubbles. For the case? Definitely recommend. Just pick up a screen protector.
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Reviewed in the United States on March 16, 2026
S
Verified Purchase
Shipra Shandilya
Natrona Heights, US
★★★★★ 5
Sleek & Protective iPhone 17 Pro Case – Perfect Everyday Fit
Size: Iphone 17 Pro, Color: Orange, Size: Iphone 17 Pro, Color: Orange
This iPhone 17 Pro case fits perfectly and feels sturdy while still being lightweight. It gives good protection without making the phone bulky, and the design looks clean and premium. The buttons are easy to press and it feels comfortable to hold for everyday use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
A
Verified Purchase
Angel
Battle Creek, US
★★★★★ 5
Practical Protection meets everyday elegance
Size: Iphone 15, Color: Black
When it comes to phone cases, functionality often battles design, leaving users to compromise on one or the other. However, the Miracase Magnetic Series Designed for iPhone 15 strikes an impressive balance, making it a standout choice for everyday users. Here’s a deeper dive into this case’s performance, practicality, and aesthetics. Unpacking Military-Grade Protection The first feature that grabs your attention is the military-grade protection claim. Unlike many cases that use the term as a buzzword, Miracase delivers. The corners are reinforced with shock-absorbing material, offering a solid defense against accidental drops. I tested this (intentionally dropping the phone from about waist height), and the iPhone 15 emerged unscathed—a testament to the case's reliability. The anti-scratch back panel further ensures your phone looks pristine, even with daily use. MagSafe Compatibility Done Right This case integrates seamlessly with MagSafe accessories, from chargers to wallets. The magnets are powerful enough to keep your MagSafe charger locked in place but not so strong as to make removing the accessories a struggle. Charging performance remains efficient, with no noticeable slowdowns compared to using the phone without a case. This makes it ideal for users who rely on wireless charging. Dual Screen Protectors: A Value-Added Bonus The inclusion of two screen protectors is a thoughtful touch. These aren’t flimsy add-ons; they are well-crafted with edge-to-edge coverage and excellent clarity. Application is easy with the provided guide frame, minimizing air bubbles—a detail often overlooked by competitors. Anti-Fingerprint and Smudge Resistance One of the standout features is the case’s anti-fingerprint coating. Many cases promise this but fail in practice. After a week of continuous use, the Miracase still looked clean and sleek, even with sweaty hands or frequent handling. The matte finish not only resists smudges but also adds a touch of understated elegance to your device. Slim Profile Meets Grip Security Despite its rugged features, the case maintains a slim profile, sliding easily into pockets. The textured sides provide a secure grip, reducing the chances of accidental drops. This combination of slimness and grip is rare in protective cases and makes the Miracase ideal for on-the-go lifestyles. What Sets It Apart? What truly makes the Miracase Magnetic Series unique is its thoughtful design for real-world use. It doesn’t just protect your phone; it enhances your interaction with it. From its MagSafe efficiency to its smudge-resistant finish, it’s clear that Miracase designed this case with user convenience in mind. Who Is This For? This case is perfect for individuals who want a no-nonsense protective case that doesn’t compromise on style or functionality. It’s particularly suited for professionals, students, and anyone who appreciates the integration of thoughtful design and durable performance. Final Verdict At its price point, the Miracase Magnetic Series Designed for iPhone 15 is an exceptional value. With its military-grade protection, MagSafe compatibility, and added extras like quality screen protectors, it confidently holds its own in a crowded market. Whether you prioritize protection, style, or everyday convenience, this case delivers on all fronts. Rating: 9.5/10 A near-perfect blend of style, durability, and user-focused design.
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Reviewed in the United States on January 18, 2025
S
Verified Purchase
Spark
Alexandria, US
★★★★★ 5
Great phone case!
Size: iPhone 16e/17e, Color: Black
Perfect protective case for my iPhone 17, without it the phone was too small and easily slipped out of my hand this makes it easier to hold but it’s not too big, it even comes with two screen protectors.
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Reviewed in the United States on May 7, 2026
A
Verified Purchase
Abe Clark
Alexandria, US
★★★★★ 5
Fit great, seems sturdy
Size: iPhone 16e/17e, Color: Black
I just got it Fit perfect, seems sturdy. The screen cover was easy to install as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

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