Charger for LiFePO4

[folivier]

I'm finished with my 1000 amp hour 12V system in my motorhome. Just have to replace the alternator regulator with the Balmar.
However I'm not satisfied with the Freedom inverter/charger. The best I can set it for is 13.7v and at the end of charge it bumps to 14.2v and alarms the Housepower BMS.
Any suggestions for a better charger? I do have 220VAC available.
I would like a charger that will shut off at end of charge. I have a Victron BMV-600 monitor that could send a signal to the charger at a set point to turn it off. Or the BMS has a (non-adjustable) signal.
Thanks!

[senormechanico]

How about using the BMS HVC signal to kick a relay to shut off the AC to the charger?

[folivier]

I can do that either with the BMS or the Victron. But what charger?
My inverter charges at about 115amps max but I can't get the profile to do what I need.
So, what chargers are out there?

[CharlieJ]

The Victron Phoenix Multi-Plus and Quattros both have the ability to receive a dry contact signal from a BMS and either stop charging (before hitting HVC) or discharging (before hitting LVC).

Mark Grasser also has a hack for the Sterling/ProMariner chargers that will stop charging upon receiving a signal from a BMS.

[steelwrk1]

Originally Posted by CharlieJ

The Victron Phoenix Multi-Plus and Quattros both have the ability to receive a dry contact signal from a BMS and either stop charging (before hitting HVC) or discharging (before hitting LVC).

Mark Grasser also has a hack for the Sterling/ProMariner chargers that will stop charging upon receiving a signal from a BMS.

Hello Folivier,

I have the victron mentioned above as does Chris and Cheri in their technomadia blog and on their bus.

I have had mine for 3 seasons as a live abord ( 6 months of the year )and have not had a single issue with it. Mine is a 120 amp 3000 watt inverter as is the bus set up in technomadia. I also have a second 80 amp victron charger I had installed this summer to charge my battery bank faster.
With both in line I casn put a max of about 150 amps per hour into the bank...have not figured out why I do not get closer to the 200 amps toatal yet. Search through my posts if you wish you will see the details of my install.

Hope this helps,
Pete

[folivier]

I've been emailing with Tornado Science Group in China. David Parkinsun says he can spec out a charger at 14.0 volt (or 14.1 or whatever I need) which with 120vac input will give me 140 amps. This will be a CC/CV charger that should just do a bulk then absorb mode with no float and should shut off once current goes to zero. This would cost about $420 shipped.
What do you guys think? This sounds like what I'm looking for.

Another option would be this one made by Mastech: VOLTEQ, Power Supply, HY30100EX, 30V, 100A, Battery Charging, 110V Input
But I'm concerned since it's adjustable would the settings hold? With the vibrations of driving the motorhome I may have to set it each time?