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Home  >  Battery Management  >  Battery Chargers  > Mastervolt 83309002 Charge Mate Pro 90

Mastervolt 83309002 Charge Mate Pro 90 Automatic Dual Battery Charger, 90A

Item #: 78087
Manufacturer Item: 83309002
Manufacturer: Mastervolt
Min. Order Qty: 1
Available: 1
Quantity Ea. Price Ext. Price
1 296.2900 296.29
5 282.1800 1410.90
10 268.7500 2687.50
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.
  • Mastervolt 83309002 Charge Mate Pro 90 Automatic Dual Battery Charger
  • Category: Battery Chargers
  • Manufacturer: Mastervolt
  • 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 40A
  • High system reliability by prioritized 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
  • Output Current: Limited to 90A
  • Number of battery outlets: 2
  • Remote Switch Functions: On, Off, Auto & Start Assist 
WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

Battery Chargers

Output Voltage
12-24V DC
Input Voltage
12-24V DC
Number of Batteries
Component Type
Battery Charger
Output Current
90 Amps