Mastervolt Chargemaster 20a 24v Output 120-230v Input
SKU: 53870227973

Mastervolt Chargemaster 20a 24v Output 120-230v Input

$280.92 $312.13
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Description

Mastervolt Chargemaster 20a 24v Output 120-230v InputMastervolt ChargeMaster 24 20 3 Battery Charger Model: 44020200 3 Step+ charging technology for fast and complete charging. Safe and complete charging due to standard safety features. Memory function prevents overcharging in case of an unstable power supply. Clear control panel. Easy to install Built in system functionality (MasterBus) in combination with other Mastervolt products Make the most of your batteries with the ChargeMaster, plugging in and

Mastervolt ChargeMaster 24/20-3 Battery Charger

Model: 44020200
  • 3-Step+ charging technology for fast and complete charging.
  • Safe and complete charging due to standard safety features.
  • Memory function prevents overcharging in case of an unstable power supply.
  • Clear control panel.
  • Easy to install
  • Built-in system functionality (MasterBus) in combination with other Mastervolt products

Make the most of your batteries with the ChargeMaster, plugging in and charging anywhere in the world. Mastervolt’s ChargeMaster guarantees fast and complete charging of your batteries no matter where you are. The ChargeMaster can charge multiple battery banks simultaneously thanks to its combined functionality. Moreover, all ChargeMasters can be easily connected to a MasterBus network with only one cable and one connection (not available on ChargeMaster 12/10 and ChargeMaster 12/15-2). You also have the option of central, local or remote monitoring, configuration and control of your system. The ChargeMaster is available in various models to guarantee you the ideal battery charger for any situation and demand.

The Mastervolt ChargeMaster supplies a maximum capacity wherever you are via auto-ranging. Auto-ranging ensures perfect fully automatic operation anywhere in the world, regardless of the available mains voltage (90-265 V AC, 50 or 60 Hz). The 3-step+ charging technology guarantees fast and complete charging, while the cos phi 1 regulation gets the most out of limited generator capacity.

Metal-on-metal fitting gives a firm connection, and prevents corrosion or overheating of contact surfaces.

The ChargeMaster series has three equal charge outputs. Those of the smaller ChargeMaster models are pre-installed with two metres of cable for a plug & play solution, while the heavier models have one full output (for example for your service battery) and two outputs of 10 A, ideal for your starter batteries.

Specifications
General Specifications
Total charge current 20A
Number of battery outlets 3
Nominal output voltage 24V
Charge current second output 20A
Charge current third output 20A
Battery capacity range 40-200Ah
Nominal input voltage 120/230 V (90-265 V), 50/60 Hz
AC connection Connector strips
Power supply mode Yes
Display/read-out LED display
Technical specifications
Charge characteristic IUoUo, automatic 3-step+ for gel/AGM/wet/Lithium Ion
Charge voltage Bulk 28.8V
Charge voltage Absorption 28.5V
Absorption time 4 hours
Charge voltage Float (wet batteries) 26.5V
Charge voltage Float (gel/AGM batteries) 27.6V
Voltage compensation Automatic
Power consumption (DC side) < 2.5 mA
Full load consumption (230 V AC) 660W
Current Control function yes, through MasterBus
Temperature range (ambient temp.) -25 °C to 60 °C, derating > 40 °C
-13 °F to 140 °F
Protection degree IP23
Cooling vario fan
MasterBus compatible Yes
Dimensions 11.5 x 8.3 x 5.2 inch

What's in the Box:
  • ChargeMaster 24/20-3
  • Mounting bracket to mount the ChargeMaster to a wall
  • MasterBus terminating device
  • Documentation
  • Battery temperature sensor
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: 53870227973

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4.4 ★★★★★
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Verified Purchase
Haley
New York, US
★★★★★ 3
Interactive. Triggers more of dogs minds
Color: Higher Level-Navy A
My dog had a bit of a time figuring out how it works but she loves it now. Put lil pieces of bacon in the holes and she finds it all well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
M
Verified Purchase
Mindhealer
Chelsea, US
★★★★★ 5
Please read!
Color: Higher Level-Navy A
The design is adorable and I love the little bones and paw prints they put on the tabs. They are easy to slide and the colors are bright and admirable. There is different difficulty levels. The yellow circles are more on the easy side. The red ones are a bit more harder if you have a more intelligent dog. The three white tabs in the middle move in a 360 circle, there is one missing so you can slide the red tab in to hide the treats. I use my dog's kibble as treats; the kibble pellets are 1cm in length and 1cm in width. I can fit about 2 pellets in each tab hole, there are 14 small holes which you can hide the treats in total. Cleaning the puzzle It depends if you wash it by hand or put it in the dishwasher. I do both but I prefer the dishwasher because it is a little hard to clean by hand since there is so many nooks and crannies on the toy. Of course, it is dishwasher safe and I recommend putting it in by itself because you don't want to cross-contaminate the dog slobber to be on your dishes. I wouldn't put crushed or wet dog food in it because it could get in the sliding rails and jam it up or get moldy. If you are going to dry the toy, open all the tabs so they are exposed. If you cannot, that's okay. My dog's opinion I have two dogs, a 2-year-old chocolate Labrador named Maggie and a 7-year-old labradoodle named Rufio, Maggie takes about 1 or 2 minutes to finish the puzzle because she is super energetic. Rufio takes 3 or 4 minutes because he is calmer; but sometimes I have to help him just a little bit. It is suitable for all dog ages and I recommend it if your dog (s) are annoying you. They both love it and I give it to them for mental stimulation and as a reward. The bottom has "non-slip pads", but if I'm being honest they actually don't work that well. My dogs just slide it around.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
J
Verified Purchase
JavaJunkie
Charlottesville, US
★★★★★ 5
Great design!
Color: Higher Level-Navy A
This Joansan Dog Puzzle Toy is exactly what I was looking for. My little MinPin is a worker and he likes having a job to do. I purchased this to entertain him when rolling his treat ball all over the place isn't practical. This disc has a non slip bottom and it's actually fairly heavy. It doesn't slide easily. So my little worker usually ends up picking it up and transporting it to different locations throughout the house. Obviously, individual results will vary, depending on size, personality, and breed of the dog using it, but it's been great for my lil guy. He gets a little physical and mental exercise. It's sturdy enough to withstand his scratching and chewing. My big dog likes it too. The size is perfect for food oriented cats too. My cat is too lazy to work for his food though. So he wasn't interested in it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025
T
Verified Purchase
Thomas K.
Phoenix, US
★★★★★ 4
This feeder will surely make your dogs work for their food.
Color: Higher Level-Navy A
I recently tried this slow feeder (I purchased 2 feeders) for my two Corgis (25 & 30 lbs.). Overall, it’s a well-constructed product and definitely slows down eating as intended. The design encourages dogs to work for their food, which helps with digestion and keeps them engaged. That said, there are a couple of challenges I noticed. The kibble sometimes gets jammed in the sliding doors, which can make it harder for my pups to access the food. Also, the feeder doesn’t hold a large amount of kibble—I found myself needing to refill it 2–3 times per meal to accommodate both of my dogs. Finally, my pups had a tougher time reaching the kibble in the middle ring, which caused a bit of frustration. Despite these issues, it’s sturdy, safe, and does the job of slowing down fast eaters. I think it could work especially well for smaller dogs or those who eat less at mealtime.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025
A
Verified Purchase
anderson2021
Pawtucket, US
★★★★★ 5
He loves it, what else is there to say!
Color: Green
My dog loves this ball. Originally we used it as it is designed and put treats inside it to knock out and keep him busy, now he just loves to throw it around and fling it by the pieces of fabric that come out. He is generally a toy destroyer so the fact that it is still arounds shows that it is strong and was for sure worth the buy. Would 100% recommend for any dog that likes to keep busy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026

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