SKU: 55477243294

MASTERVOLT MAC PLUS DC/DC CONVERTER CHARGER. 12 TO 24 VOLT, 30 A 81205300

$359.55 $399.50
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

MASTERVOLT MAC PLUS DC/DC CONVERTER CHARGER. 12 TO 24 VOLT, 30 A 81205300Boost the charging voltage of your service battery! Charging the service batteries on board of a vehicle or vessel can be challenging. Recharging tends to take a long time and batteries may not receive a full charge. This is a common problem found in boats, service vans, campers and trucks. Smart alternators and start stop systems make the problem even worse. Robust DC DC charger guarantees optimal condition of your service battery Traditionally, a

Boost the charging voltage of your service battery!

Charging the service batteries on board of a vehicle or vessel can be challenging. Recharging tends to take a long time and batteries may not receive a full charge. This is a common problem found in boats, service vans, campers and trucks. Smart alternators and start/stop systems make the problem even worse.

Robust DC-DC charger guarantees optimal condition of your service battery

Traditionally, a service battery is linked to the starter battery by means of a charge relay. The starter battery is located close to the alternator and receives most of the charge current. However, the service battery is usually further away. Long cables cause voltage drop, leading to slow charging, resulting in failing appliances and premature failure of the battery. Modern, fuel efficient engines are equipped with smart alternators, following regulations such as Euro 5 and Euro 6. Instead of a constant output, smart alternators provide a variable voltage; after a brief charging period, voltage is reduced and the charging stops. Furthermore, the energy produced by regenerative braking leads to voltage peaks. Service batteries coupled in the traditional way will receive hardly any charge and may be damaged by these peak voltages. To solve these issues, Mastervolt introduces the Mac Plus DC-DC chargers, available in 12 V or 24 V. The Mac Plus monitors the service battery and compensates the voltage loss. The proven 3-step charge method ensures a quick and safe charge. Moreover, by stabilizing the charge voltage, Mac Plus protects your service battery and sensitive equipment.

Features

  • Fast and safe charging during short trips.
  • Fanless design for silent operation.
  • Suitable for flooded, Gel, AGM and Li-Ion batteries (incl. LiFePO4).
  • Charges even fully depleted batteries.
  • Engine run detection protects starter battery.
  • Adjustable current limits to meet Euro 5/6 requirements.
  • Voltage stabilisation protects sensitive equipment, lights and loads.
  • Parallel operation to obtain charging capacities well over 100 Amps.
  • MasterBus for intelligent system monitoring and automation.
  • Temperature compensation and voltage sense for an optimal charging result.
  • E-mark certification for mobile applications.
  • Power supply mode.
  • Heavy duty connections for easy installation and quick set up via DIP switches.

The non-isolated Mac Plus models have an electrical connection between the input and output.

Features:

  • Low costs.
  • Efficient: low heat generation.
  • Compact.
  • Suited to applications with negative earthing.

Applications

Boost charge voltage when service battery is located further from charging source or in systems with a smart alternator. When a stable power supply or different system voltage is needed.

Parallel operation

The parallel configuration of several units will provide you over 100 amperes. Advanced high-frequency technology with modern microprocessors ensures minimum power loss when switching from 24 to 12 V and vice versa.

Solid Connections

Galvanized brass connection block with screw terminal or chrome-plated fast-on for DC in/out for the Mac/Magic models. The robust M8 connections of the Mac Plus prevent any loosening due to vibrations.

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: 55477243294

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4.7 ★★★★★
Based on 9 reviews
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M
Verified Purchase
Miyi
Draper, US
★★★★★ 5
Still One of the Best Cleansing Oils I’ve Ever Used After Years of Repurchasing
Scent: Unscented, Size: 7.7 Fl Oz (Pack of 1)
I rarely stay loyal to skincare products for years because I’m always testing and trying new things, but DHC Deep Cleansing Oil is one of the very few products that has remained a permanent part of my routine. I’ve repurchased this multiple times over the years, and every time I try another cleansing oil, I eventually come back to this one because the performance is just consistently good. The first thing that stands out is how effective it is at removing makeup. I wear waterproof mascara, eyeliner, sunscreen, and long-wear foundation regularly, and this breaks everything down incredibly fast without needing to aggressively rub my skin. I usually apply one pump onto dry hands and massage it onto my dry face for about 30 seconds. You can literally feel the makeup dissolving almost immediately, especially around the eye area where stubborn makeup usually takes extra effort to remove. What I really appreciate is that it removes heavy makeup in one application. I don’t have to go back in multiple times or use separate eye makeup removers anymore. Even waterproof mascara that normally leaves residue around the lashes comes off cleanly. That alone saves me so much time at night when I’m exhausted and just want my skincare routine done quickly. Once water is added, the oil transforms into a light milky texture that spreads evenly and rinses away very easily. A lot of cleansing oils claim to rinse clean but still leave behind a greasy film that makes me feel like I need another cleanser immediately afterward. This one actually rinses off properly with water and leaves my skin feeling clean, soft, and balanced instead of heavy or sticky. Another reason I’ve continued using this for years is because it doesn’t make my skin feel stripped. My skin tends to get dehydrated easily if I use harsh cleansers, especially during colder months, but this leaves my face feeling comfortable and hydrated. The olive oil and vitamin E in the formula definitely help with keeping the skin soft after cleansing. My skin usually feels smoother and calmer afterward instead of tight and irritated. I also haven’t experienced clogged pores from this, which surprised me because I was originally nervous about putting an oil cleanser on my face. Instead, it actually helps loosen buildup and sunscreen better than many foaming cleansers I’ve tried. My skin texture always looks cleaner and more refreshed after using it consistently. The bottle also lasts a very long time because you honestly don’t need much product. One pump covers my entire face easily, including eye makeup removal. Even with regular use, the full-size bottle lasts me months, so I feel like the value is actually very good considering how little product is needed each time. The included travel size is another nice bonus. I keep the mini bottle in my travel bag or purse because it’s convenient for trips and prevents me from having to transfer product into another container. It’s small but still lasts quite a while. One more thing worth mentioning is the price. I’ve purchased this from different places over the years, and this listing is usually cheaper than buying directly from the official store. Whenever I see it on sale, I stock up because it’s one of those products I genuinely never want to run out of. Overall, this is one of the most reliable cleansing oils I’ve used. It removes makeup quickly, rinses clean without residue, feels gentle on the skin, and lasts a long time. If you wear makeup regularly, use waterproof products, or simply want a cleansing oil that actually performs the way it promises to, this one is absolutely worth trying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
L
Verified Purchase
Lindsay
Natrona Heights, US
★★★★★ 5
my holy grail
Scent: Unscented, Size: 6.7 Fl Oz (Pack of 1)
i’ve been repurchasing this for almost 8 years now. hands down this is a holy grail product for me and i have been recommending it to everyone. it takes my makeup off great and it leaves my skin feeling so smooth and soft. its very lightweight and it is very easy to use. i use this for about 10-20 minutes before i use a water based cleanser to take it off. it got rid of little bumbs i have and i genuinely do feel blackheads and dead skin coming off as i use it. this made my skin do a 180 and i will def be using this until the day i die. i love this and recommend it so much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
S
Verified Purchase
Sarah
San Leandro, US
★★★★★ 4
Reliable choice
Scent: Unscented, Size: 6.7 Fl Oz (Pack of 1)
Product I have been purchasing for almost a decade. Excellent at getting out black heads around the nose and mouth. However, if you do not thoroughly double cleanse after, you will be sure to experience a break out. It has a mild scent that doesn’t bother me, typically I get headaches from too strong of a scent. Overall, it’s a gentle way to cleanse and protect your skin health.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
M
Verified Purchase
MelissaBH
Birmingham, US
★★★★★ 5
Holy grail of cleansing oil!
Scent: Unscented, Size: 6.7 Fl Oz (Pack of 1)
I'm very experienced with skincare, and this is hands down the best cleansing oil I've come across. I use this as part of a double cleansing routine, and it is so effective in removing makeup, sunscreen, and difficult mascara I no longer need to use makeup remover balm as a first step. This is now a permanent part of my skincare routine!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
S
Verified Purchase
Suz in Wenatchee
Louisville, US
★★★★★ 5
Truly does clean even mascara and eyeliner and there is no oily residue - just a clean face!
Scent: Unscented, Size: 7.7 Fl Oz (Pack of 1)
I won’t be without this face cleansing oil! It works like magic to remove every trace of foundation, eye liner, mascara, eyeshadow and leaves my face feeling hydrated but not greasy or filmy. It rinses off easily - I have used it for 10+ years . It never causes breakouts nor does it leave residue. I am 75 years old.,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

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