SKU: 39162436322

Mastervolt Charge Mate Pro 90

Sale price$120.15 Regular price$133.50
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Description

Mastervolt Charge Mate Pro 90Mastervolts Charge Mate Pro 90 Model: 83309002 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 A. High system reliability by prioritised charging of the main battery. Unidirectional which blocks return current under all circumstances. Prevents power dips of the onboard electrical network. Suitable for all

Mastervolts Charge Mate Pro 90

Model: 83309002
  • 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 A.
  • High system reliability by prioritised charging of the main battery.
  • Unidirectional which blocks return current under all circumstances.
  • Prevents power dips of 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.

A secondary battery on board 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 Charge Master 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 consist 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 fulfil even higher continuous power demands of your equipment on board.

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 assist
Dimensions, hxwxd 6.2 x 5.5 x 3.1 inch
Weight 1.9 lb
Technical specifications
Connection possibilities 3 x fast-on 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 Multi purpose contact, 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 low voltage drop of max 0.2 V)
Temperature range (ambient temp.) -40 °C to 60
Protection degree IP65
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: 39162436322

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4.6 ★★★★★
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SGMiGHTY
Lake Worth, US
★★★★★ 5
These are quality bulbs and more reliable than halogen
Size: H7
Car that I drive is a 2008 Mazda 3 4Dr Sedan Automatic i Touring. Got so tired and fed up with felt like spending money every month or so on halogen bulbs. It was always the same old story, trip to auto zone to avoid a fix it ticket. I almost tried to buy the Sylvania brand on Amazon for cheaper but what's the use? Its STILL the SAME product. I'm done with those and never going back. The new Territory Has snapped right in without any special add on adapters, just plug and play deal. Way brighter and super easy. Love them. Can see way better at night and not have to worry about them burning out so quickly anymore. More than I can say about the Sylvania brand "Made in Germany". They're slippin
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Reviewed in the United States on February 15, 2026
A
Verified Purchase
AkaLjot Kaur
Phoenix, US
★★★★★ 5
10/10
Size: H11+9005
I’m really happy with these lights! They were easy to set up, work perfectly, and give off a beautiful glow. The brightness is just right for creating a cozy and relaxing atmosphere without being too harsh. The quality feels great for the price, and they instantly made my space look more modern and inviting. I also appreciated how well they were packaged and how quickly they arrived. Definitely worth the purchase, and I would absolutely buy them again. Highly recommend to anyone looking for stylish and reliable lights!
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Reviewed in the United States on May 22, 2026
L
Verified Purchase
Luke Ownby
Chelsea, US
★★★★★ 5
Termitor H11 are so worth it
Size: H11+9005
LED Lights are as described. They fit perfect in the low beams and high beam spots. LEDs are super bright and work great at night! Soo much better than the old fluorescent bulbs that came with my rig.
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Reviewed in the United States on May 16, 2026
G
Verified Purchase
GinnyJ
Houston, US
★★★★★ 5
Bright light
Size: 9004/HB1, Size: 9004/HB1
Keeping track of longevity. Had these bulbs for a month and will try and update if they fail. Unfortunately a while ago I hit a cow, seemed to just pop up out of nowhere, the truck was rebuilt and I wanted more/better road lighting. I am using these in a Mack truck for work so they are getting used. I run at least 10 hours a day, 5+ days a week and have at least 11k miles on them since installed. Install is just like a standard bulb no special steps needed. Produce a lot of light and good patterns on high and low beam. So far I really have only had one issue with the bulbs and that is the daylight running light/DRL operation, they don't work I believe the Mack drops the voltage to slightly dim the lights when running in DRL operation and this causes the bulbs to just intermittently flash so I just run with them on all the time. This I don't believe is the bulbs fault and is more an analog vs digital issue. Therefore I'm testing the longevity of the bulbs if my truck is running they are on. Will see how they do as the days get hotter as they are in a small sealed space.
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Reviewed in the United States on April 26, 2026
T
Verified Purchase
Ted F.
Port Orchard, US
★★★★★ 5
Wow bright!
Size: H11+9005, Size: H11+9005
I have used Fahren LED headlights in two of my other vehicles so I had a baseline of what to expect, but these upgraded ones are even brighter than the ones in my other two cars. I love this brand because they are plug and Play so I have not experienced any compatibility issues. These feel high quality as I have expected due to past experience with this brand. I much prefer the bright white color of LED versus the yellowish Amber of halogens. I have been using this brand for several years now so I expect a good lifespan from this as I have experienced from other bulbs from this manufacturer. As far as value goes, the increase in visibility installing these is worth every penny and then some.
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Reviewed in the United States on December 19, 2025

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