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With reference to the Victron 'NMEA 2000 & MFD integration guide' - Page 2 'Limitations' (extract below) last line indicates that a BMV always needed in a Marine installation.
@Guy Stewart (Victron Energy Staff)
Guy or anyone else. Can you advise why this is required. I have a Lynx Shunt 1000 with VE.Bus BMS and VenusGX etc.
Thanks.
Hi @Michael Riley, not to worry, you’re fine with that Lynx. No need for a BMV.
I’ll rethink that text, and probably remove that bulletpoint; its trying to explain something too complicated and not relevant.
@mvader (Victron Energy Staff) The CCGX documentation says that a BMV is needed for marine use on page 18.
=================
(D) Other system types
When there are more chargers, or loads, connected to the battery than just the Multi or MPPT Solar Chargers, a dedicated Battery Monitor will be required. Examples are:
House loads in Marine or Vehicle system.
PWM Solar Chargers
AC chargers, such as Skylla-is, Phoenix chargers, non Victron chargers, etc. Alternators
DC-DC chargers
Wind turbines
Hydro turbines
=============
I figured the Lynx ion shunt would track all in and out of the batteries. Can you confirm that a BMV is not needed if a lynx ion 1000 shunt is between the batteries and all loads?
Jon
Thanks For the confirmation.
I have 1 outstanding issue. Do you know if an MPPT 150/85 TR can get battery voltage from a CCGX or do I need to add a battery sense?
Ccgx itself doesnt measure the battery voltage. But, if you have a battery monitor connected (lynx ion) then yes, it can get the data from there and give it to the mppt as voltage sense
Hmm... I have both a Lynx Ion 1000 and Victron LFP batteries connected to the CCGX. The MPPTs are not getting the voltage from there. They are connected but appear to be using the voltage they detect on the battery connection as they regularly see 14.2 when the batteries are at something well below 100%. Most recently the CCGX was showing 70% state of charge and 13.? ( I don't recall the exact but it was .2 or .6) and the MPPTs were detecting 14.2 and went into absorption. At that time the only charge source was the 2 MPPTs. How can I ensure they get battery state from the data in the CCGX?
Thanks,. Jon
Acknowledged. Thanks.
