SKU: 54429659663

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

$541.12 $601.25
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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: 54429659663

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4.2 ★★★★★
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Waci Isnala
Massapequa, US
★★★★★ 5
Great for very sensitive skin!
Size: 3 Fl Oz (Pack of 1), Set name: Tube - 3 oz.
Use this every day. It's my primer. Lol I have extremely sensitive skin to the point where one wrong move lands me in the ER. This worked for me. Slight greasiness but works well for me as I can't wear foundation. This at least hydrates and protects. Love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
S
Verified Purchase
Sandra Rivera
Houston, US
★★★★★ 5
Great product
I really like this sunscreen! It feels lightweight, absorbs quickly, and doesn’t leave my skin feeling greasy. The SPF 55 gives great protection, and it works well for everyday use. Great value for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
R
Verified Purchase
RTee
Birmingham, US
★★★★★ 5
Delivers what it promises
I’m a fair skinned person who burns and freckles easily and in my 40’s. I also love being outside. I have worn spf on my face (and usually my hands) basically every day since I was 13 and because of that people always say I don’t look my age. Back then, only a 4 or 8 was available in face moisturizers, but I have always worn the highest that is recommended and usually face moisturizers are behind in meeting the recommendations so I have usually worn a full on sunscreen under my makeup. As the recommendations get higher it has been harder to find something that doesn’t look pasty, smell bad or interfere with makeup. I was using Eucerin spf 30 and Cera Ve spf 30 but I have wanted to increase spf to 50 because that is what is recommended now. I tried the Cera Ve spf 50 and was disappointed by how tacky it is and pasty it looks. I don’t even like wearing it alone to the beach because it’s so chalky white and sticky. Neutrogena healthy defense is alright but it has a scent and some chemicals that are not so good. It also is a pretty small bottle (1.7 oz) when you use it everyday on face and hands. But THIS product has blown me away with its affordability and quality. It IS sheer. Easily blends in and disappears quickly into skin. It’s completely odorless. It’s not tacky or greasy—you feel moisturized but not sticky. It performs under foundation even better than the Cera Ve 30. Now, this doesn’t have the extra ceramides and vitamins that does so I’ll still be using that when I feel extra dry like in winter, or I might mix the two moisturizers, but this Solimo reef safe sunscreen will definitely be my daily face and hand sunscreen in the spring, summer and early fall. These are the days I go straight from work to the garden or the beach. I can quickly reapply over my makeup before I leave the house again feel fully protected while I’m out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2022
E
Verified Purchase
eeeggg
Los Angeles, US
★★★★★ 4
I believe equal to name brand rhyming with NitroGina
I believe it is equal to the name brand mentioned on the front side of the tube. It is 55 SPF Sun Protection Factor so it offers strong UV A and UV B protection which are the 2 ranges of sun rays that do the skin damage and burning. It is an easily absorbed lotion that when rubbed goes into the skin and is not visible. It feels good after being rubbed in in that it feels dry and not overly greasy or with no shine and sheen. If you put on a shirt over your skin with lotion it will appear on the inside of a dark shirt but it will wash out right away when that shirt is washed. It is a good product and offers burn protection to me in some clear-sky strong sun uses. Reapply after entering the pool or after an hour (all sunscreen labels say reapply after 80 minutes which I believe is per recommendations of the federal FDA or some medical studies). I reapply often and I still get tanned but I do not want to burn.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2025
R
Verified Purchase
Ragdollyanna
Natrona Heights, US
★★★★★ 5
Super impressed by this!
Love this sunscreen and will be reordering it. It’s sheer, light, invisible, gives me the protection I need for my middle aged skin and I can swear my complexion has gotten better since I started using it. I’m super impressed how it’s comparable to more expensive brands in quality without the high price tag. It’s made me start looking into other skin products I can purchase from the Amazon brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026

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