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So we took a trip down to Richards bay with Budget
- Thread starter willem wikkel spies
- Start date
Jy het basies nou een groot battery gemaak. Die probleem kom as jy altwee engines dieselfde tyd laat loop. Dit is redelik ingewikkeld om dit tegnies te beskryf maar jy gaan een of albei jou motors se laai meganismes opdons.(Charging circuits).
Jy gaan die "stators" en die 'coils" beskadig. Dit gebeur nie oornag nie maar dit gaan jou geld kos.
When both motors are running simultaneously, they will both be trying to charge the battery. If the charger output of one motor is higher than the other, it could raise the battery voltage above the charger output of the other motor. In that case, the other motor's charging circuit is effectively electrically disconnected from the battery while it is still running. That is a situation in which some damage could occur.
As een battery oppak gaan jy die goeie battery ook beskadig omdat die battery wat moeg is dan die goeie battery gaan pap trek. As jy dan wil start in die diep blou en die engin vat nie het jy groot poef.
Jy kan n toets doen om te sien of jy al klaar iets beskadig het deur al jou elektronies goed te diskonnekteer(radio, fish finder ens). Meet dan of daar enige stroom getrek word oor die pole met die motors afgeskakel. Indien wel het jy klaar skade op een van jou motors se laai sisteem.
Jy gaan die "stators" en die 'coils" beskadig. Dit gebeur nie oornag nie maar dit gaan jou geld kos.
When both motors are running simultaneously, they will both be trying to charge the battery. If the charger output of one motor is higher than the other, it could raise the battery voltage above the charger output of the other motor. In that case, the other motor's charging circuit is effectively electrically disconnected from the battery while it is still running. That is a situation in which some damage could occur.
As een battery oppak gaan jy die goeie battery ook beskadig omdat die battery wat moeg is dan die goeie battery gaan pap trek. As jy dan wil start in die diep blou en die engin vat nie het jy groot poef.
Jy kan n toets doen om te sien of jy al klaar iets beskadig het deur al jou elektronies goed te diskonnekteer(radio, fish finder ens). Meet dan of daar enige stroom getrek word oor die pole met die motors afgeskakel. Indien wel het jy klaar skade op een van jou motors se laai sisteem.
CraigT wrote:
Good idea, I have similar on my LC with dual batteries. In case my start battery is flat I can bridge using the deadman switch to start. Only difference is two batteries one engine.
It is advisable to not have the engine on the good battery running when you bridge the switch and then start. Leave the engine off, close the switch, start the engine with the flat battery, open the switch and then start the motor on the good battery.
When both engines are running with the switch closed, there is a vast difference in voltage of the two batteries and also the charging voltage coming from the alternators to the batteries and you could damage your charging circuits.(Stators, coils and regulators)
I have found jumper cables tend to rust on the boat and don't work when you need them.
I have connected my 2 batteries in parallel with a cut off switch on the positive cable.
If my battery running the pumps and electronics happens to go flat I close the switch. Always remember to open the switch once you have started the motor or you could end up with 2 dead batteries.
Good idea, I have similar on my LC with dual batteries. In case my start battery is flat I can bridge using the deadman switch to start. Only difference is two batteries one engine.
It is advisable to not have the engine on the good battery running when you bridge the switch and then start. Leave the engine off, close the switch, start the engine with the flat battery, open the switch and then start the motor on the good battery.
When both engines are running with the switch closed, there is a vast difference in voltage of the two batteries and also the charging voltage coming from the alternators to the batteries and you could damage your charging circuits.(Stators, coils and regulators)
Rory wrote:
Hi Rory
Interesting, can you explain a bit more? Do you just add a cable between the two negative terminals and leave the rest as is?
Can rather just join the negatives this is advised by Yamaha to stop electrolysis
Hi Rory
Interesting, can you explain a bit more? Do you just add a cable between the two negative terminals and leave the rest as is?
Slimy Salamander
New member
IWyk wrote:
I'm guessing that a common ground will prevent electrolysis between the two engines. I don't see how it can do anything to prevent electrolysis caused by different metals, but it will help against electrolysis caused by some form of electrical circuit conducting between the two engines.
Rory wrote:
Can rather just join the negatives this is advised by Yamaha to stop electrolysis
Hi Rory
Interesting, can you explain a bit more? Do you just add a cable between the two negative terminals and leave the rest as is?
I'm guessing that a common ground will prevent electrolysis between the two engines. I don't see how it can do anything to prevent electrolysis caused by different metals, but it will help against electrolysis caused by some form of electrical circuit conducting between the two engines.