SKU: 88669098582

Mastervolt ChargeMaster 12 Amp Battery Charger - 3 Bank, 24V [44020120]

Sale price$236.93 Regular price$263.25
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Description

Mastervolt ChargeMaster 12 Amp Battery Charger - 3 Bank, 24V [44020120]ChargeMaster Battery Charger 12 Amp 3 Bank 24V Power You Can Rely On Make the most of your batteries with the ChargeMaster, plugging in and charging anywhere in the world. Mastervolts 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

ChargeMaster Battery Charger - 12 Amp - 3 Bank - 24V

Power You Can Rely On

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 24/6). 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.

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. 

Sturdy Connections 

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

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.

Features:

  • 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 (not available on ChargeMaster 24/6).

General Specifications

  • Nominal output voltage: 24 V 
  • Total charge current:12 A 
  • Number of battery outlets: 3 
  • Charge current second output: 12 A 
  • Charge current third output:12 A 
  • Battery capacity range: 24-120 Ah 
  • Nominal input voltage: 120/230 V (90-265 V), 50/60 Hz
  • AC connection: 2M AC cable
  • Power supply mode: yes
  • Display/read-out: LED display
  • Fastening: 4x screw
  • Dimensions, H x W x D: 234 x 132 x 60 mm / 9.2 x 5.2 x 2.4 inch
  • Weight: 1.8 kg / 4.0 lb
  • Approvals:CE, ABYC A-31, SAE J1171/ISO8846 ignition protected

Technical Specifications

  • Charge characteristic: IUoUo, automatic / 3-step+ for gel/AGM/wet/Lithium Ion
  • Charge voltage Bulk: 28.8 V
  • Charge voltage Absorption: 28.5 V
  • Absorption time: 4 hours
  • Charge voltage Float (wet batteries): 26.5 V
  • Charge voltage Float (gel/AGM batteries): 27.6 V
  • Temperature compensation: -60 mV/ °C -33 mV/ °F
  • Voltage compensation: automatic
  • Power consumption (DC side): < 2 mA
  • Full load consumption (230 V AC): 435 W
  • Current Control function: no
  • Power factor control: ≥ 0.98
  • Temperature range (ambient temp.): -25 °C to 60 °C, derating > 25 °C -13 °F to 140 °F
  • Sound level: < 52 dBA at 1M
  • Protection degree: IP23
  • Protections: over temperature, over load, short circuit, high/low battery voltage
  • Cooling: vario fan
  • MasterBus compatible: yes

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

  • Charger Output Voltage: 24v
  • Charger Output - Amps: 12a
  • Charging Banks: 3
  • Portable: No
  • Charger Input - Voltage: 120/230v
  • Box Dimensions: 5"H x 7"W x 11"L WT: 4.65 lbs
  • UPC: 816882020100

Owner's Manual (pdf)
Brochure (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: 88669098582

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4.4 ★★★★★
Based on 10 reviews
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Product Reviews
B
Brenda A Davis
San Leandro, US
★★★★★ 4
Christmas 🎄 10 yrs later
Format: Kindle
Cute story of Moeller FMC who gets rejected by her childhood pack that at age 17 decides to break off their relationship which destroys her, 10 yrs later she returns home to a sickly grandmother and has to encounter them once again but this time her eyes are wide open with the possibility that they will have to grovel and romance hurt
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
M
Melissa Heredia
Lake Worth, US
★★★★★ 2
Did I miss the grovel??
Format: Kindle
Something about this story is off. I dont know if the characters are lacking or if it's just rushed, not my favorite
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
K
Kindle Customer
Alexandria, US
★★★★★ 5
absolutely loved it!!!
Format: Kindle
This book was awesome!! I love how the female took the lead and said if you want me back you work for it!! I laughed and I cried! Thank you for sharing your characters with me and giving me a sweet place to escape to!! I definitely stayed up too late having to finish it haha!! Bouncing on my feet waiting for the next one!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
A
A D Lum
Battle Creek, US
★★★★★ 3
Why call it "Grovel" when there is no actual groveling?
Format: Kindle
I'm so confused by this story. The title of the book is Grovel and yet the MMCs do not do any groveling at all. They reject her, say mean/cruel things to her and break her heart, but then do nothing to make up for it when she comes back to town. I couldn't stand Frost; the way that he treated her, and women in general, the things that he said to her just gave no reason for why he should be forgiven or be allowed back into Noelle's life. The interactions with Robin and Shepard were a little better, but nothing about this story showed me why she should forgive them and get back together with them. This was a good premise, but very poor execution of a story line. I felt bad for Noelle and what she had been through with these men, but wanted better for her and wished that she could have found a different pack that would actually treat her right and not blame her for the choices that their mother made. In the end, this book just wasn't for me. I liked the character of Nana, I even liked Noelle's parents and felt bad for what Noelle had to deal with, but I just didn't care for the supposed romance that this book was about. Maybe others will enjoy it, but I'll probably pass on any other stories from this author. I gave it 2.75 stars, but rounded up since Amazon doesn't allow partial stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
C
Carmen Alicea
Belleville, US
★★★★★ 4
The grovel wasn’t groveling.
Format: Kindle
Oh no, if you’re going to promise grovel, you better deliver. And unfortunately… this one fumbled the assignment. Three Alphas who rejected their scent match, broke her heart, and let her walk away for ten years, only to realize she was “the one suddenly”? I was ready for emotional devastation and tearful, knees-in-the-snow apologies. But here’s the problem: the grovel just didn’t hit hard enough. For a betrayal that deep, the emotional payoff felt rushed. The Alphas express regret, sure, but it never quite reaches that gut-wrenching, ache-for-it level you expect from a story built entirely on redemption. Their apologies come, but they lack the prolonged suffering, the desperate proving, the earn it or lose her forever energy that would’ve made this unforgettable. After ten years of heartbreak and abandonment, Noelle's forgiveness comes a little too easily, a little too quickly. You can feel the story nudging her toward reconciliation before the emotional scales are fully balanced. The chemistry is still there, the tension still simmers, and the small-town winter vibes are undeniably cozy, but for a book titled Grovel, the emotional reckoning needed to be deeper, messier, and far more punishing. A compelling setup with plenty of angst and longing, but if you’re here for hardcore grovel and slow-earned forgiveness, this one might leave you wanting more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026

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