SKU: 53493512995

Mastervolt Charge Mate Pro 40

Sale price$112.50 Regular price$125.00
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Description

Mastervolt Charge Mate Pro 40Mastervolts Charge Mate Pro 40 Model: 83304002 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 40

Model: 83304002
  • 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.

Specifications
Monitoring LED (warnings and status indication)
Output current limited to 40 A
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: 53493512995

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M
Verified Purchase
Mr. G
Phoenix, US
★★★★★ 5
As advertised
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
As advertised
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
B
Verified Purchase
Billy Burlinson
Houston, US
★★★★★ 4
Good wire.
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
Flexible. I need this type of wire for the high current. It's good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2025
H
Verified Purchase
Hardtoplease
Houston, US
★★★★★ 5
Tinned 14 AWG.
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
Tinned will not corrode as fast. Flexible and worked great for my purpose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026
L
Verified Purchase
lori borger
Birmingham, US
★★★★★ 5
OMG so much better than alternative products
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
went to my local box store and bought both multistrand and single strand to rewire a pedal. huge issues with flexibility. bought this product and ..what a pleasure. high quality, very very flexible and well packaged.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 4, 2024
K
Verified Purchase
Kyle Seal
Louisville, US
★★★★★ 5
Worked good
Worked well on my 84 115 tower of power
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026

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