Bavaria Yacht Info

Member Forums => Bavaria Yacht Help! => Topic started by: mjt2 on June 04 2023, 19:53

Title: generator output on Volvo Penta D2-50 (2003 Bavaria 38)
Post by: mjt2 on June 04 2023, 19:53

Hi, I have been looking at the Volvo site and doing general search, but I can't see to find...

How much electrical power does the generator on the Volvo Penta D2-50 generate?  I know it will typically generate MORE power with higher RPMs, but still there is almost certainly a limit. But, say at 1600 RPM, what should I expect?

I am creating "power plans" for the boat (I just purchased), one for on the hook, another for cruising. For cruising, I need to know the power output from the generator. 

If you can, please 1) answer the questions; 2) provide your source (url or otherwise).

Thanks much in advance,
Matthew

Title: Re: generator output on Volvo Penta D2-50 (2003 Bavaria 38)
Post by: tiger79 on June 04 2023, 20:21

It has a max output of 115A.  At cruising revs, maybe 60-70A max output, but this all depends on whether your systems, batteries, etc can accept that rate of charge.

https://pubs.volvopenta.com/ProdDocs/Home/Disclaimer?publication=47710130&lang=en-US

Title: Re: generator output on Volvo Penta D2-50 (2003 Bavaria 38)
Post by: Yngmar on June 04 2023, 21:26

At such output it won't be long before overheating and melting the regulator though, especially if running on low rpm, as boats often do :)

Any good A2B charger or alternator smart regulator therefore has a temperature sensor that is fitted on the alternator housing to prevent it from cooking. Or fashion one yourself.

Title: Re: generator output on Volvo Penta D2-50 (2003 Bavaria 38)
Post by: mjt2 on June 05 2023, 00:08

Quote from: Yngmar on June 04 2023, 21:26

At such output it won't be long before overheating and melting the regulator though, especially if running on low rpm, as boats often do :)

Any good A2B charger or alternator smart regulator therefore has a temperature sensor that is fitted on the alternator housing to prevent it from cooking. Or fashion one yourself.

Thanks for the reply.  I am sorry, I don't know what an "A2B charger" is.  Can you please expand that?

Thanks,
Matthew

Title: Re: generator output on Volvo Penta D2-50 (2003 Bavaria 38)
Post by: mjt2 on June 05 2023, 00:09

Quote from: tiger79 on June 04 2023, 20:21

It has a max output of 115A.  At cruising revs, maybe 60-70A max output, but this all depends on whether your systems, batteries, etc can accept that rate of charge.

https://pubs.volvopenta.com/ProdDocs/Home/Disclaimer?publication=47710130&lang=en-US

Thank you!

Title: Re: generator output on Volvo Penta D2-50 (2003 Bavaria 38)
Post by: marioxp on June 05 2023, 19:25

Quote from: mjt2 on June 05 2023, 00:08

I am sorry, I don't know what an "A2B charger" is.  Can you please expand that?

Thanks,
Matthew

Alternator to battery charger

Title: Re: generator output on Volvo Penta D2-50 (2003 Bavaria 38)
Post by: Jess21 on June 18 2023, 22:26

Our Bav 38 2003 D2-55 Volvo is equipped with a Valeo 60A alternator. It has a V-type belt. Later models of the D2-55 Volvo are equipped with 115A Mitsubishi alternator (with flat belt). For full power (60A) you will need to run the engine at 3000 rpm. At 1600 engine rpm you might expect 40A max.