SKU: 53870227973

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

Sale price$280.92 Regular price$312.13
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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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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4.0 ★★★★★
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Product Reviews
J
Verified Purchase
james bird
Birmingham, US
★★★★★ 5
Good watch
Color: G5885-silver-red
Great watch for the money, keeps better time than my ROLEX. Also very attractive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
D
Verified Purchase
Don E.
Massapequa, US
★★★★★ 5
Proud of my watch.
Color: G5885-silver-red, Color: G5885-silver-red
I purchased two of these and I am pleased so far.I was able to resize the band without any problems.They look good and I’ve received a few unsolicited compliments.IMHO they are well worth the 35 bucks or so I spent on them.Heck two of my buddies wearing r.l.x’s noticed them right off the bat.I just smiled and said thank you very much. P.s.I could buy and sell my two friends many times over so didn’t bother me when they ask me the price.Proud of the good watch for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2025
A
Verified Purchase
Anthony Pierson
Dallas, US
★★★★★ 5
Great watch
Color: G5885-silver-red
Nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Tells you the time
Color: G5885-silver-red
Great watch for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
T
Verified Purchase
TJ
Chelsea, US
★★★★★ 1
Not for me
Color: G5885-silver-red
Unfortunately, this watch was a huge disappointment. Regardless, it was probably worth the price. I just didn’t feel right with it on my wit wrist. I’ll take a Timex any day over this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026

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