Mastervolt ChargeMaster Plus 12/35-3 Battery Charger [44310355]
SKU: 21137409543

Mastervolt ChargeMaster Plus 12/35-3 Battery Charger [44310355]

Sale price$368.55 Regular price$409.50
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Description

Mastervolt ChargeMaster Plus 12/35-3 Battery Charger [44310355]ChargeMaster Plus 12 35 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 12/35-3 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: 12V
  • Total charge current: 35 A at 14.4 V
  • Number of battery outlets: 3
  • Charge current second output: 35 A
  • Charge current third output: 35 A
  • Battery bank size: 70-350 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: 35a
  • Charger Output Voltage: 12v
  • Charging Banks: 3
  • Portable: No
  • Box Dimensions: 6"H x 12"W x 15"L WT: 9.2 lbs
  • UPC: 816882022876

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: 21137409543

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4.2 ★★★★★
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Aundrea
Waukegan, US
★★★★★ 5
powerful, efficient and long lasting
Color: Black
we've had this for a year and half now and it has held up!! we use it daily for coffee drinks. we also use it to mix powdered flavored drinks, when i do that it literally will make the WATER foam! its really powerful. and has definitely been worth the price as its lasted a year and a half.
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Reviewed in the United States on March 29, 2026
S
Verified Purchase
Soan Esteves
Boise, US
★★★★★ 5
Great for fast frothing!!!
Color: Black
Very easy to use, the speed is fast enough for that little bit of froth in seconds, good for the price, battery lasts for days,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
T
Verified Purchase
Tonya
Alexandria, US
★★★★★ 3
One speed level
Color: Black
The product currently operates at a single speed. While its performance is satisfactory, there is no option to reduce the speed. We kindly request the addition of an additional speed level for this item. 😒
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Reviewed in the United States on March 2, 2026
D
Verified Purchase
Daryl
Phoenix, US
★★★★★ 5
Creamy, Smooth, and Fresh — Perfect First Matcha Experience
Flavor Name: Superior Blend, Size: 1.4 Ounce (Pack of 1), Flavor Name: Superior Blend, Size: 1.4 Ounce (Pack of 1)
I tried the Naoki Superior Blend Matcha for the first time and was honestly impressed from day one. I prepared it with milk, and the matcha turned out incredibly creamy and smooth with a natural sweetness — no bitterness at all. The color was a vibrant bright green, which immediately made it feel fresh and high quality. You can tell this is not one of those dull, stale matcha powders. It mixed well and had a very clean, balanced flavor. As someone who was looking for authentic Japanese matcha without the marketing gimmicks, this felt like a great find. Looking forward to trying it next with just warm water to experience the flavor on its own.
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Reviewed in the United States on May 26, 2026
C
Verified Purchase
Charles
Birmingham, US
★★★★★ 5
Smooth like butter - Better than Jade leaf
Flavor Name: Superior Blend, Size: 3.5 Ounce (Pack of 1)
This stuff is smooth. No hint of bitterness in sight. Its so smooth I actually preferred to mix it 50/50 with Jade Leaf in my Matcha lattes. Its just amazing Matcha.. so good I started occasionally drinking it by itself not as a latte... the flavors present in just the tea (no milk, no sugar, etc) is insane. Umami, savory, very minimal mineral/bitter tastes. So if you like mineral tasting matcha, try Dens tea Restaurant Matcha... it has a very strong mineraly taste. This is almost the opposte. One thing to note, this stuff is so smooth and lacks bitterness that I actually have to use 3.5g instead of 3g like I do with Jade leaf... but once you get the strength dialed in it is MINT. I personally dont care about any clumping etc because I whisk my matcha with an electric frother in about 2 oz of water before adding milk or anything else.. even the matcha i had in my fridge which got clumpy from condensation didtn stand a chance... so if you ever have lumpy matcha.. its your fault, not the matchas fault. FYI. I dont mind the Jade leaf at all (for lattes)... in fact I wil gladly use it if its on sale.. but this is objectively the better matcha. If you plan to drink by itself, dont even consider jade leaf.. I am speaking specifically for lattes... Naoki is the only one you want to drink straight. But if you are a latte person.. either one is good quality and a buy again from me.
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Reviewed in the United States on March 20, 2026

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