Adverc

[Boater Sam]

I can attach that wire to the start battery though?

Also just found a relay that seems to connect the two banks independently of the VSR which I assume is part of the Adverc?

If you are referring to the sensing wire it would then monitor the starter battery but when the split charge relay, you have found, which connects the 2 batteries together when the engine is running, closes it will still charge the lithium the same way which may not be correct for that battery, assuming that there is only one alternator.

 

[BabaYaga]

Adverc has no relays.
If you want to uninstall the unit, disconnect all its wires (the green field wire which connects to one of the brushes can simply be cut, no need to open up the alternator).
To answer the original question, I would say two possble benefits, as already mentioned provides battery sensing to a system otherwise machine sensed, secondly compensates for ambient temperature with regard to charging voltage.
Adverc does not provide three stage charging.

 

[Boater Sam]

Adverc has no relays.
If you want to uninstall the unit, disconnect all its wires (the green field wire which connects to one of the brushes can simply be cut, no need to open up the alternator).
To answer the original question, I would say two possble benefits, as already mentioned provides battery sensing to a system otherwise machine sensed, secondly compensates for ambient temperature with regard to charging voltage.
Adverc does not provide three stage charging.

The relay is not in the Adverc, its a normal split charge relay. Adverc does control bulk charge, float etc.

 

[PaulRainbow]

The relay is not in the Adverc, its a normal split charge relay. Adverc does control bulk charge, float etc.

The OP reports 2 relays.

The adverc does not do multi stage charging, as you have already been told.

 

[lustyd]

So I assume then that I can just remove that split charge relay safely? Certainly don’t want the lithium connected direct

 

[PaulRainbow]

Ah that makes some sense. So I probably want to reconfigure it to the engine battery and let it do it’s thing while the b2b takes some charge to the house bank

I would remove the Adverc and anything else apart from one VSR. The Adverc has minimal advantages with a modern alternator, no-one fits them these days, a modern alternator will charge at 14+ volts without any external assistance. Connect the alternator as standard, to the engine battery.

When you fit the Lithium battery remove the VSR and fit the B2B.

 

[Refueler]

I am only commenting and in no way trying to be clever or know more about this .. I defer to others who will know better.

Adverc ... haven't heard that name for years ... similar Sterling. Years ago - I mean in mid 90's - pal of mine removed a Dual Diode charge unit from his HR 45 ... and also the Adverc unit. He upgraded to a newer system ... what that was ? - its years ago now.
He passed the Dual Diode unit to me - but said it really needs the Adverc or similar to cheat the voltage reduction it causes. Boy was that true !! I fitted the Dual Diode and my batterys were never decently charged.
By then he had passed the Adverc to another ...... I baulked at the price of a new one - disconnected the Dual Diode unit. It still sits in the engine bay today.

My understanding was that the Adverc and Sterling came about to compensate - by battery sensing - the voltage drop of such Dual Diode Units ... it cheated the alternators own regulator ... allowing it to fully charge batterys. If I remember rightly - it actually brought batterys to a HIGHER state than alternators would normally without Diode reduction ....

This then causes me to ask - if there is no Dual Diode or any unit to cause Voltage Drop - then surely its purpose may have been to get that last bit of charge in higher ?? So would it be necessary to uninstall in that case ?

Note : I do know of a couple of cases of batterys 'boiling' though and owners removed such boost units ... whether Adverc or STerling or another .. its too many years ago.

 

[lustyd]

I would remove the Adverc and anything else apart from one VSR. The Adverc has minimal advantages with a modern alternator, no-one fits them these days, a modern alternator will charge at 14+ volts without any external assistance. Connect the alternator as standard, to the engine battery.

When you fit the Lithium battery remove the VSR and fit the B2B.

Thanks Paul. To remove it it’s just a case of taking off all cables connected to it? I don’t know how alternators are usually connected (although can look it up). Just concerned at the mention of modifications to alternator above.

 

[geem]

Thanks Paul. To remove it it’s just a case of taking off all cables connected to it? I don’t know how alternators are usually connected (although can look it up). Just concerned at the mention of modifications to alternator above.

There are normally a couple of wires soldered to the brush holders. No need to open up the alternator. Simply snip off the wires close to the alternator in such a way that the ends cannot create a short

 

[PaulRainbow]

Thanks Paul. To remove it it’s just a case of taking off all cables connected to it? I don’t know how alternators are usually connected (although can look it up). Just concerned at the mention of modifications to alternator above.

Instructions here : https://docplayer.net/44561732-Adverc-functional-back-ground.html

Follow in reverse, noting Geems comments in post #29

 

[lustyd]

Perfect thanks chaps. Battery is now in and 9 hours until full removed the Adverc which cunningly was the exact same footprint as a 30A Victron Orion so that solved a problem of where to put it. Will remove the wiring tomorrow morning for the Adverc etc. and for now I’m just not starting the engine.
Watching this battery charge really hits home how much more capacity there is compared to the old bank. It’ll take us a long time to discharge once full!

 

[geem]

Perfect thanks chaps. Battery is now in and 9 hours until full removed the Adverc which cunningly was the exact same footprint as a 30A Victron Orion so that solved a problem of where to put it. Will remove the wiring tomorrow morning for the Adverc etc. and for now I’m just not starting the engine.
Watching this battery charge really hits home how much more capacity there is compared to the old bank. It’ll take us a long time to discharge once full!

The totally flat charge curve takes some getting used to. Only way to know what's happening is with a smart shunt.

 

[lustyd]

The totally flat charge curve takes some getting used to. Only way to know what's happening is with a smart shunt.

Victron smart shunt is how I know it was 9 hours. I’m actually shocked that we’re now at 73% from 15% at install and the Victron agrees with the BMS on percentage still.

 

[geem]

Victron smart shunt is how I know it was 9 hours. I’m actually shocked that we’re now at 73% from 15% at install and the Victron agrees with the BMS on percentage still.

A few discharges and the BMS will likely wander a little.
It takes a while to get used to the acceptance rate being so much better. Also strange not having to get the battery full. We haven't been fully charged for 22 days now. Better for the batteries if you aren't. We only charge about 90% anyway but no need to go there