Originally Posted by SFH
The shore charger
(80A) is charging
the truster batteries
(OPTIMA RED TOP batteries) but I often get low voltage alarm
I want to get rid of the Cristec MOSFET 100A 3-splitter since it cant handle the load from the Balmar
AT-165 and replace it with a setup that improves charging
of my truster battery
pack in the bov: Faster and with an optimal charge profile matching the three different batpacks instead of "one fits all"
just checking - but where is the alarm
coming from ? Normally Alarms are on the Service
Bank - if this is the case .... something else maybe amiss ... like your Thruster bank is dead and/or the alternator
is not supplying enough supplement.
Understand your thoughts for your 100A splitter - I have a Sterling zero volt drop 120A splitter - but the amperage seems to detail the input feed - not sure how many amps will actually go through these things to the connected Banks. This is obviously where a relay is best - for straight amp pass thru and no volt drop.
But ..then .. it sounds like.
We need some form of 'intelligent' 12/24v charging for when the alternator
is feeding, there is no load on the Banks and the battery
type is different than that configured in our alternator regulation profile (typically the Service
I am coming round to thinking :
A 240v 'intelligent' charger
for the Service Bank - on Generator
2 x 'intelligent' 12v chargers to Engine
and Thruster/Windlass from the Service Bank - for top up and ongoing maintenance
Alternator (optimally regulated to the Service Bank battery type ) charging the Service Bank.
2 x Relay combiners to combine the Thruster/Windlass to the Service and the Engine
to the Service - as required. I might wire the Thruster/Windlass activation relay to my Windlass
Also my Solar
charging the Service Bank ..... have both MPPT
Mind you - if you read the Smart Gauge stuff on their website - they say that all this profiling is a waste of time .... just use intelligent combiner relays.
And ... if every other Bank is hanging off the Service Bank - what happens if that has a problem - everything stops. ... hmmm
Are we over complicating things ....