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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4.8 ★★★★★
Based on 11 reviews
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Product Reviews
M
Verified Purchase
Melanie Allred
Charlottesville, US
★★★★★ 5
Soft and squeaks
Style: Lambchop, Size: 10"
Super cute and dog loves
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
A
Verified Purchase
Adarius Carr Prime
Grantham, US
★★★★★ 5
Great value for the price
Style: White, Size: 24" Jumbo
I have gotten smaller versions of this Lamb chop, my dog has loved them all the same but this one is great. It's big enough for him to carry around and it lasts a lot longer since he likes to tear them up fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
K
Verified Purchase
Kimmi Bear
Port Orchard, US
★★★★★ 3
This version is ok, but NOT for my boy-The 24in Jumbo version is the perfect toy for Kota-Ghost.
Style: White, Size: 24" Jumbo, Style: White, Size: 24" Jumbo
Adorable & nice but... I hate writing adverse reviews but I had to for this one. It lasted exactly 1 minute. 30 seconds of that was Ghost pulling the rest of the stuffing out to completely gut this Lambie. I know what happened-The material on the chest and the little red buttons were the issue. Cute as it may be, that material is terrible. My Great Pyrenees/AmStaff/Golden Retriever Mix boy, Kota-Ghost, very rarely tears his stuffy squeaky toys up. He is only 7 months old and has only shown interest in tearing something up if it was already broken(had an existing rip or tear)This is only the 2nd or 3 toy he has torn up in his whole life(and he literally has at least 30 stuffy toys(some left by my sweet Bella--she passed away in March but most are brand new because when I saw he wasn't a Destructo-Dog, I went a bit overboard buyin him stuffies-So much that my Hubs was not happy with me but he was secretly glad I did it😈.) See my review for the Jumbo Lambchop toy-That toy was and IS quite possibly the best stuffed squeaky toy available for bigger dogs. Only the MultiPet brand Jumbo tho-There are other brands that arent great. You can tell by the materials used on the face of the real Jumbo 24 inch ones from MultiPet. The Jumbo was a much better experience for us! I have also ordered the smaller one for him becuz he really wants the cat's lambie toy too. They have the 6 inch, not the "cat toy" version and they(and Ghost)love it. No one tears it up. I'll review it once his is delivered because while I know he doesnt rip the 6 inch one apart it is technically the cat's toy(not his) and we usually make him give it back to them pretty quickly. Ill review it when he gets his own & is allowed to do whatever he chooses. Hopefully he will treat it like Jumbo Lambie...Ok well, maybe not exactly that way cuz...Well, Lets just say he gets very, erhmm, frisky with his Jumbo Lambie. He doesnt like when we wash her but we do. Unfortunately he tries to take her outside in the dirt and/or in the pool with him. I will mention that more in my review for Jumbo Lambie. As for this standing up version-It MIGHT be fine for your dog or cat but it definitely was not durable for my Ghostie. It is a good size for a smaller/medium sized dog but definitely not good for puppies & especially those that still have their deciduous(milk/needle)teeth and not for even light to moderate chewers due to the material on the chest. That's what made Ghost tear his up. He nicked it with his teeth, a hole formed and that was apparently his cue to rip the squeaker out & tear the poor toy to shreds-He did have fun doing it tho. Haha. For some dogs this toy might be great fun. It is definitely a great brand and the jumbo version is Ghost's fave toy of all time. Pricing on all of MultiPet's dog toys are amazing and I hope they stay that way! We keep several of the Jumbo Lambies here in case one "goes swimming" so we can wash it and he has one to carry/cuddle or in case one gets temporarily left behind somewhere cuz he wants to take it everywhere he goes. We let him bring her along except for on walks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2025
A
Verified Purchase
AmberC
New York, US
★★★★★ 5
My Dobermans favorite toy to destroy, and one of our recommended picks.
Color: Checkers - Elephant (Gray), Size: Large
Ok, here's an honest breakdown review. I have a 6 month old Doberman who shreds every stuffed animal and dog bed he's come across. He's one of the worst chewers I've owned. We have tried a WIDE variety of stuffed toys. That said, this elephant is his favorite toy. I have ordered 4 of them so far, and just ordered another 4-pack on a buy three get one free deal. The elephant stands out above all the other stuffed creatures from goDog for me as to durability. Hence why I keep buying more. But they usually last about 2-3 weeks on average. In our house, the poor creatures are subjected to vicious, crazy, shaking of the head, helicopter type rotation. It' so hard if it hits your bare arm or leg it actually stings especially when its wet. Then the old, put it between his legs laying down, tearing at the legs action. The limbs are usually the first things to go over time. But they are each almost self sealing, so you clean up as little fluff and keep using it. Eventually the pup reaches the main body and finishes it off. For a normal light to normal chewer, one of two will get you a long way. For those of us resigned to having zoomie type manic chewers that need a constant supply of toys, 2-3 week durability is pretty sound too. I do not recommend the green cheaper monster. It lasted about 45 minutes. The free replacement took about 3 days. Hopefully this aids you in your decision!
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Reviewed in the United States on June 10, 2026
A
Verified Purchase
Ashley
Lowell, US
★★★★★ 5
Very durable for rowdy pups
Color: Checkers - Elephant (Gray), Size: Large
This toy has outlasted any other dog toy I have ever bought. I have one large and one medium dog who share toys, fight over toys, chew them to death and still play with them. It might be because it isn't one of their favorites. I don't know. All I know is that our house is littered with dog toys in different states of destruction and this elephant toy has very little damage. It has definitely been in the dog toy rotation. I had this toy for 2 months without any major damage. The day I wrote the review the dogs tore the leg off! I still think it is a good toy. Some toys lose the stuffing or squeaker the first day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2025

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