SKU: 21421897736

Mastervolt ChargeMaster Plus 24/20-3 Battery Charger [44320205]

Sale price$403.65 Regular price$448.50
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Description

Mastervolt ChargeMaster Plus 24/20-3 Battery Charger [44320205]ChargeMaster Plus 24 20 3 Battery Charger Make the most of your batteries with the ChargeMaster series, plugging in and charging anywhere in the world. Mastervolts ChargeMaster guarantees fast and complete charging of your batteries no matter where you are. Thanks to Mastervolts innovative 3 step+ charging process, batteries also perform better and last longer. All ChargeMasters can be easily connected to a MasterBus network with only one cable and

ChargeMaster Plus 24/20-3 Battery Charger

Make the most of your batteries with the ChargeMaster series, plugging in and charging anywhere in the world. Mastervolt’s ChargeMaster guarantees fast and complete charging of your batteries no matter where you are. Thanks to Mastervolt’s innovative 3-step+ charging process, batteries also perform better and last longer.

All ChargeMasters can be easily connected to a MasterBus network with only one cable and one connection (with the exception of the ChargeMaster 12/10, ChargeMaster 12/15-2, and ChargeMaster 24/6). What’s more, you have the option for central, local, or remote monitoring, configuration, and control of your system.

Clear Display

A clearly lit display on the ChargeMaster provides all essential information: charge current, charge voltage, charge phase, and battery content measurement and/or battery condition measurement as a percentage of available Ah capacity. The display also provides an indication of MasterBus communication. Three buttons adjacent to the read-out panel allow for easy operating of the entire system. 

The ChargeMaster is available in various models to guarantee you the ideal battery charger for any situation and demand.

Features:

  • For recreational and semi-professional use.
  • Suitable for any type of battery, including Lithium-Ion batteries.
  • 3-Step+ charging technology for fast and complete charging also charges depleted batteries.
  • Memory function prevents overcharging in case of unreliable mains.
  • Safe and complete charging due to standard safety features.
  • Charging capacity up to 1000 Ah battery banks.
  • Easy to connect and quick to install.
  • Can charge multiple battery banks simultaneously.
  • Built-in system functionality (MasterBus) in combination with other Mastervolt products.
  • Clear control panel (with the exception of the ChargeMaster 12/10, ChargeMaster 12/15-2, and ChargeMaster 24/6).
  • Supplies your system without a battery.

Charging your batteries with every voltage

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.

Robust Connections 

Solid metal-to-metal connectors equipped with strain relief prevent corrosion and overheating.

Charging multiple battery banks

The ChargeMaster series has three equal charge outputs. Those of the smaller ChargeMaster models are pre-installed with two meters 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.

DC Power Supply

Even if the batteries are not connected, Mastervolt ChargeMaster battery chargers can provide a constant DC output allowing you to turn on lights or keep the fridge cold.

Specifications:

  • Nominal output voltage: 24 V
  • Total charge current: 20 A at 28.8 V
  • Number of battery outlets: 3
  • Charge current second output: 20 A
  • Charge current third output: 20 A
  • Battery bank size: 40-200 Ah
  • Nominal input voltage: 120/230 V (90-265 V), 50/60 Hz
  • AC connection: Connector strips
  • Power supply mode: Yes
  • Galvanic isolation: Yes
  • Display/read-out: LED display

Specifications:

  • Charger Input - Voltage: 120/230v
  • Charger Output - Amps: 20a
  • Charger Output Voltage: 24v
  • Charging Banks: 3
  • Portable: No
  • Box Dimensions: 6"H x 12"W x 16"L WT: 9 lbs
  • UPC: 816882022890

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: 21421897736

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4.7 ★★★★★
Based on 13 reviews
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Verified Purchase
Herman D.
Boise, US
★★★★★ 5
Gets the job done.
Size: Large, Color: Deep Blue, Size: Large, Color: Deep Blue
Better than I expected (for a last minute buy). Looks great after I steamed it. Not the most durable, but a solid piece for the price. Thick and breathable material. I’m a 42R and the fit was perfect with no alterations needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
S
Verified Purchase
SleepyBoy
Chelsea, US
★★★★★ 4
Great fitting suit!
Size: X-Small, Color: Deep Grey (Stretch Fabric)
If you’re 5’8” 145lbs this review may help! I’m 12-14% BF, range 142-150lbs, 28-30” waist. I wear 30” inseam for pants, 40R suit but can fit 39R, 15/32 slim fitted dress shirts, small to medium fitted T shirts. I love the fit of the suit. The grey color and the texture of the fabric could be a little better. Seems the fabric isn’t a solid consistent look. A little textured I suppose. The jacket fits well and I love the stretch fabric for the armpit area. Makes it easy to put on and move around while giving a good fit. I think a little bit more room in the shoulders would be nice. The cut is a little off for me in the back of the jacket by the neck area. The vest seemed a little large but has an adjustable strap in the back. For the jacket pockets, you’ll have to carefully cut and pull the threads at the opening since they are sewn shut. I did notice a little wrinkling to the side front near the serratus. Could be the cut. For me if it was a little roomier by chest and tappered in more it would fit better. The joint where the sleeves meet the shoulder are OK. There are some wrinkles there due to imperfection with stitching. The sleeves come down past my wrist a little. My arm-span is square with my height for reference. If you have big biceps it might be a little tight. The pants fit perfectly for me. Good length with no excessive break when not wearing shoes. There’s some excessive break when wearing higher profile shoes. The stretch waist is nice for when you decide to eat and drink too much and still comfortable while sitting. I’ve not found a slim fitted suit like this before. Comfortable to dance around in also. If you have thick thighs it might feel a little tight. Wore the suit to a wedding and it was great. Can’t really complain for the price. Good luck!
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Reviewed in the United States on March 24, 2025
Q
Verified Purchase
Q21
Louisville, US
★★★★★ 5
Tie color, general review
Size: Small, Color: Grey
Great quality, love the thickness of the suit wearing it in the summer it wasn’t hot. Nice buttons, love the small extra gift. Would prefer a neutral colored tie that could go with anything rather than the red and white striped they offered with the suit. Pants fit a bit bigger, had to adjust it to my measurements but, all by all a good purchase!
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Reviewed in the United States on July 19, 2025
P
Verified Purchase
Phil D
Chelsea, US
★★★★★ 3
Nice material, stitching. Fit was unorthodox.
Size: Small, Color: Light Grey (Stretch Fabric)
putting on the suit for the first time, pants first, I thought that I had gotten a steal of a deal! The fabric was of good quality, had a good amount of stretch and was just long enough for my long legs. (typically wear a 32/34, but cuff the jeans once). It was the top section that I had an issue with. The shape of the shoulder-to-neck area was very pointed. As someone that has almost no trap muscle, this meant extra fabric that sagged on the my shoulders and gave me an unkempt look and I'm not sure this is something that a tailor can fix easily. If you have a little more beef up top, this would probably work for you. I wish it would have fit differently because I was impressed by the quality.
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Reviewed in the United States on October 31, 2023
D
Verified Purchase
demetrius george
Natrona Heights, US
★★★★★ 1
Do not waste your time
Size: 3X-Large, Color: Black
Wow! Lol extremely disappointed. I ordered this suit based off of the size chart and my accurate measurements. It was EXTREMELY small. So small that I could barely get my forearm through one sleeve. Not even close to my measurements. And to top it off, it was delivered in a clear bag, exposing the contents to the carrier and possible package thieves. So unprofessional.
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Reviewed in the United States on April 14, 2026

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