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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4.8 ★★★★★
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M
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Maryland1
Whiting, US
★★★★★ 4
Nice base in general
Base seemed nice coming out of the box. Good size, though double check it will work for your needs as my mistake it was just a bit too big. Filled with water, it is a decent base to utilize with an umbrella I feel. Not sure if others' bases had this, too, but mine has some kind of object rolling around the side. No way to get it out. Not sure if when the hole is drilled into the top, it's from that? Also, when filling with water, there were unpleasant fumes coming out. Water mixing with the rubber material on the inside? All that said, for the price, this is a good option to consider for an umbrella base.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2025
S
Verified Purchase
S. Ramsey
Lake Worth, US
★★★★★ 5
Great Stand!
Color: Black - Fluted
Awesome stand for the umbrella. Works well. Has kept the umbrella in place.
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Reviewed in the United States on April 22, 2026
A
Verified Purchase
Andy Rodriguez
New York, US
★★★★★ 5
Sturdy, Reliable, and Visually Pleasing - A Must-Have Patio Accessory!
I recently purchased the Best Choice Products 55lb Capacity Fillable Umbrella Base Stand for my backyard patio, and I have to say, I'm absolutely thrilled with this purchase. This umbrella stand has quickly become a reliable and crucial part of our outdoor setup. To start off, the assembly was straightforward and didn't take up much time. The instructions were clear, easy to understand, and within minutes we were able to get it set up. No additional tools or complex steps were necessary, which was a great relief as I'm not exactly a DIY person. I filled it with sand, which brought it to its maximum capacity of 55lbs, and the stability it provides is exceptional. We've had several windy days since I've purchased the stand, and not once has my patio umbrella tilted or tipped. The 2 adjustment knobs on the sides help to secure the umbrella pole firmly, which provides an additional layer of stability. The stand's faux wicker design is another aspect I absolutely love. It beautifully complements my other patio furniture and adds a touch of sophistication to my outdoor decor. The plastic used for the stand is of high quality and convincingly mimics the look of real wicker without the associated maintenance or weathering concerns. Being a round base, it conveniently fits in our patio corner without taking up too much space. Moreover, it's been outside in various weather conditions - from intense sun to rain showers - and it hasn't shown any signs of wear or color fading. The material seems durable and capable of withstanding different weather patterns, which is exactly what I needed. Also, despite being sturdy and heavy when filled, the base is easy to move around when empty. This makes it convenient to store away during the winter or rearrange when we want to change up our patio layout.
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Reviewed in the United States on May 22, 2023
B
Verified Purchase
Brandi L Gannon
Battle Creek, US
★★★★★ 5
Umbrella base
Color: Black - Sunburst
Great product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
T
Verified Purchase
The Andersons
Draper, US
★★★★★ 3
Good stand but has issues.
Color: Black - Sunburst
Very sturdy and looks good. But, the part that holds the umbrella is loose and requires a wedge to stop it spinning (I used a plastic knife). Also the screw on the bottom RUSTS and in a BIG way. To solve the rust issue I put an old plastic cutting board under it. We use it with the modifications mentioned.
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Reviewed in the United States on May 7, 2026

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