Like to share this problem experienced by a boat owner who had a problem of batteries not charging
as he says the battery charging
light comes on.
Conclusion: There is no earth/negative for ARS-5. The cable from alternator
to end connectors for ARS-5 for negative is open. Somewhere along the line, there is a break.
4JH4-HTE with Balmar
100 amp with ARS-5 installed in Singapore
- 5 years old.
is Sonnensein connected a Heart Interface Freedom 25
for shore power
At 800 rpm
, B+ from alternator
is about 10 amps. Field is about 3.1 amps.
Voltage at battery is 13.9 v.
At 1,500 rpm
, B+ reads 69 volts with Field current
reading 3.5 amps. Battery voltage is 16.9 volts!!!
off. B+ at alternator reads 13.4 volts. There is earth between alternator and engine.
The cable connector strip to ARS-5 - red wire for B+ reads 13.4 and. The red and black (negative) wire no voltage. Black and alternator no continuity. This means the ARS-5 is not getting earth/negative for the regulator
to work so it pumps out full power.
For a temporary test, a short length of wire with a crocodile clip from engine body to the black wire is made. Reconnect the strip back to ARS-5.
Start engine. At 800 rpm 13.80 volt. At 1,500 rpm - 13.90 volts. Problem solved! No earth for ARS-5.
I left the boat with the owner to get another person to either trace the break in the original black wire or he has to add a new wire to his set up for earth.
Hope this information is helpful.