SKU: 43198009014

Mastervolt Charge Mate Pro 90 [83309002]

Sale price$132.30 Regular price$147.00
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Description

Mastervolt Charge Mate Pro 90 [83309002]Charge Mate Pro 90 Current limited electronic charge relay with high efficiency and reverse current protection A secondary battery onboard requires a dedicated charging solution. The Charge Mate Pro makes it possible to distribute the charger or alternator current effectively between two battery banks such as a starter and a service battery. The Charge Mate Pro connects both batteries during charging and keeps them isolated when discharging. This

Charge Mate Pro 90

Current limited electronic charge relay with high efficiency and reverse current protection

A secondary battery onboard requires a dedicated charging solution. The Charge Mate Pro makes it possible to distribute the charger or alternator current effectively between two battery banks such as a starter and a service battery. The Charge Mate Pro connects both batteries during charging and keeps them isolated when discharging. This significantly reduces the risk of a flat starter battery for example.

The Charge Mate Pro offers an additional advantage over mechanical charge relays, by limiting the charge current to the second battery. The primary battery, like a starter battery, is therefore charged with priority. The return current is automatically blocked even when the secondary battery has a higher voltage. An emergency start function is possible by connecting an optional bypass switch to the ChargeMaster Pro.

A marine application example is the connection of a bow thruster battery to a service battery. The Charge Mate Pro ensures that the service battery is always charged with priority. The blocking of the return current from the bow thruster battery guarantees that the bow battery remains charged while the current limiting also prevents power dips of the onboard electrical network.

The Charge Mate Pro series consists of a 40 Amp and a 90 Amp version, both suitable for charger or alternator applications. The Charge Mate Pro 90 ensures a higher charge current for example when charging Lithium-Ion batteries. It is also perfectly suitable for large automotive alternators up to 180 A and can be used in parallel operation with a 225 Amp alternator to fulfill even higher continuous power demands of your equipment on board.

Charge Mate Pro: for controlled charging from a single source.

Applications:

  • Leisure and professional marine and mobile applications. An effective solution for high power demand onboard and/or the need for prioritized or current limited charging.

Features:

  • Charges two battery banks from a single source.
  • Electronic charge coupling with very low voltage drop.
  • Makes effective dual charging possible.
  • Suitable for all battery types, including Lithium-Ion.
  • Charge current secondary battery limited to 40 or 90 A.
  • High system reliability by prioritizing charging of the main battery.
  • Unidirectional which blocks return current under all circumstances.
  • Prevents power dips in the onboard electrical network.
  • Suitable for all kinds of chargers and alternators.
  • Monitoring with LED status indication.
  • IP65 electronics in a corrosion-resistant casing with aluminum heat sinks.
  • Fast and easy installation.

General Specifications:

  • Monitoring: LED (warnings and status indication)
  • Output current: limited to 90 A; > 25 °C derating power
  • Number of battery outlets: 2
  • Input voltage range: 9-32 V
  • Parallel configuration: Yes
  • Battery voltage: Automatic 12/24 V detection
  • Remote switch functions: On, off, auto, start to assist
  • Dimensions, hxwxd: 157 x 140 x 80 mm/6.2 x 5.5 x 3.1 inch
  • Weight: 0.88 kg/1.9 lb
  • Compliance: CE

Technical Specifications:

  • Connection possibilities: 3 x faston connectors (switch, ground, and status) • switch: for an optional single-pole ON-OFF-ON switch for remote operation • status: for an optional LED indicator
  • Power consumption: Switch open: < 1 mA at 12/24 V DC
  • Battery types: All types (Lithium-Ion protection via Multipurpose Contact Output, product code 77030500)
  • Switch on voltage: 13.5 V (12 V) / 27 V (24 V)
  • Switch on delay: 5 sec
  • Switch off voltage: 12.75 V (12 V) / 25.5 V (24 V)
  • Switch off delay: 2.5 sec
  • Relay: Electronically (MOSFETs with a low voltage drop of max 0.2 V)
  • Temperature range (ambient temp.): -40 °C to 60 °C/-40 °F to 140 °F
  • Protection degree: IP65

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

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: 43198009014

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4.3 ★★★★★
Based on 597 reviews
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Product Reviews
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Verified Purchase
Vieux
Dallas, US
★★★★★ 5
Excellent monitor, return of first defective one was a breeze.
The first monitor that I received displayed tearing, flickering, and artifacts at 144hz refresh, using an RTX5080 Nvidia graphics card when playing Il2-Sturmovik at highest graphic settings. I thought I would give Crua another chance and requested a replacement. Amazon sent me a new monitor immediately which arrived 2 days later. I simply swapped out the screen and returned the defective monitor in the box the replacement was sent in. It was painless. I have had the new monitor for a couple of weeks and it has been flawless. Great color, sharp image, no dead pixels, stable at 160hz refresh. I cant vouch for its longevity yet, but I will give an update after 6 months or so. Otherwise, this is the best monitor for the money that I have found in its class, and has made an impressive improvement to my setup.
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Reviewed in the United States on April 1, 2026
K
Verified Purchase
Kim
Los Angeles, US
★★★★★ 5
Surprising quality, great for work
Size: 34 Inch, Size: 34 Inch
I know this is advertised as a gaming monitor, but I decided to get a large, wide monitor for long work hours to replace my two 27 inch monitors. It has just enough width that you can easily split the screen and work side-by-side. It is genuinely helped my neck pain since my posture is staying straight. There is no lag in the monitor and it has a pretty good design. Nice and thin, sleek. The amount on the back of it was a little strange, but I figured it out. The only thing I don’t like about this monitor is you cannot adjust the height up and down and it does not tilt but for the price I can live with that. It does give you the option to mount on a wall, which is nice. This might be a me problem, but it didn’t want to register with my thunderbolt docking station. I ended up needing to plug it directly into the laptop, which is an ideal. Haven’t figured out if that’s the monitor operation or if I need to connect it in a different way. Overall, this is a great value for the money.
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Reviewed in the United States on April 2, 2026
M
Verified Purchase
Mystic
Lake Worth, US
★★★★★ 3
Very poor delivery and unboxing experience
Size: 34, Size: 34
2/12/26 Shipping was beyond poor. Amazon packaged this in a oversized box with no padding. Monitor box inside was damaged, but product seems ok. I was initially going to return and left a scathing feedback review for amazon delivery being beyond poor, when I requested a call there service kept hanging up on me. Shame on you Amazon, unfortunately I am removing one star for that. Now onto the real review... Monitor is sharp with no dead pixels, however the protective film is weird. So weird I thought I had received a used product, when I went to peel the film the sticker ripped and I had to carefully inspect to discover there was actually film and not someone pulling one over on amazon on a return. One star removed for that horrible film experience, it was very jarring. There is no height adjustment only tilt, which is fine nothing unexpected there. Stand is actually quality and is a Metal Injection Molding (MIM) material which is impressive for the price, not weighted plastic like some of the higher end brands. I like that there is no horrible blue light signaling the monitor is on, but that can be a turn off for some as the black levels of monitor can confuse someone into thinking it is not working. However if you are a photographer or a gamer this is a huge plus. Kudus to CRUA for doing that. I will update review upon testing to see if product needs less stars or if amazon wants to chime in on their part in this experience to add stars back. CRUA get on amazon so you can be a solid 4 stars! At this point I would recommend, but beware the film.
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Reviewed in the United States on February 12, 2026
I
Verified Purchase
iNDi
Chelsea, US
★★★★★ 4
CRUA delivers in price and panel quality, but stumbles in build quality
If they could just solve their quality control issues then this might be one of the best monitors I have purchased for the price it is offered at. Major monitor brands should be absolutely ashamed that this comes within striking quality of monitors are 3-6x its price. My only advice to anyone else looking to buy this is to get an extended warranty for it because CRUA does have serious quality control issues and weak components. But the actual panel, colors, etc are way above the asking price. I am absolutely floored.
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Reviewed in the United States on May 9, 2026
K
Verified Purchase
KenjiFox
Omaha, US
★★★★★ 5
This monitor is spectacular for the price. I am very pleased with it.
Size: 27 Inch
It arrived in tact and has zero blemishes or dead pixels. That's saying something when you have this many pixels too. The Freesync works great, it's fairly bright and the colors are amazing. They need to be detuned quite a lot since the gamut is way higher than most content is created for. Gaming is fantastic. I do not seem to have the advertised 1080P high FPS mode though. Perhaps they crossed up some of the promotional information for a different model. Still, I am very much enjoying 160Hz at 4k. I am playing through games again just to see them so clearly, and that's going from a 2k monitor of the same size. This display is superior. I wish the power button that's modeled to look like a joystick actually was one, don't be caught off guard by that. It's just a button. I knew that when I bought it but still. Kinda... iffy to make it look like one. I mounted the monitor on an arm. It weighs very little so it was easy. I never used the included stand, but it's very sturdy and I love that is flips vertically too. The headphone jack works nicely for my powered speakers and it switches between display port and HDMI correctly. My last monitor had to be restarted each time I went back to Display Port to get audio back. This monitor at the price I paid is insanely good. I'd been waiting for years for a good 4K panel with high refresh rate at 27". By far my favorite monitor size. I have zero intention of changing or upgrading from this panel until μLED is finally available. If this panel dies, I will get another until then.
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Reviewed in the United States on January 14, 2026

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