victron energy 80-2SC Argo Diode Battery Isolator Instruction Manual
- June 4, 2024
- victron energy
Table of Contents
victron energy 80-2SC Argo Diode Battery Isolator
Diode battery isolators allow simultaneous charging of two or more batteries from one alternator, without connecting the batteries together. Discharging the accessory battery for example will not result in also discharging the starter battery. The Argo Diode battery isolators feature a low voltage drop thanks to the use of Schottky diodes: at low current the voltage drop is approximately 0,3 V and at the rated output approximately 0,45 V.
Warning: hot surface, mount the Argo Diode on a non-flammable surface only!
Compensation diode
All models are fitted with a compensation diode that can be used to slightly
increase the output voltage of the alternator. This compensates
for the voltage drop over the diodes in the isolator.
Care should be taken however to keep cable lengths short and of sufficient
cross-section.
Example:
When a current of 100 A flows through a cable of 50 mm² cross section (AWG 0)
and 10 m length (30 ft), the voltage drop over the cable will be 0,26 Volt.
Similarly, a current of 50 A through a cable of 10 mm² cross section (AWG 7)
and 5 m length (15 ft) will result in a voltage drop of 0,35 Volt!
Installation (see figure below)
- Always disconnect the battery minus cables before making alterations to the electrical system.
- Connect the positive output of the supplying source (alternator) to the input of the battery isolator.
- Connect the positive connection of the battery sets to output 1, 2 and (optional) 3 respectively.
- Optional: connect the voltage sense of the alternator to the compensation output of the ArgoDiode splitter.
- Connect the negative poles of the battery sets to the common negative bus bar.
Victron Energy BV / De Paal 35 / 1351 JG ALMERE / The Netherlands www.victronenergy.com / e-mail: sales@victronenergy.com