Need for installation validation: LiFePO4 + 3 charge sources in my RV

Hello,
I am going to change the power supply part of my RV.
Here are the items I will have:

-EVE LiFePO4 280aH (very good contact with Selina)

-Daly Smart BMS: 100A + Separate port (charge set at 50A)

For recharging, I would have 3 sources:

-AC: Nordelettronica NE143-P:
Manual: https://www.mon-camping-car.com/pdf/10595.pdf
No LiFePO4 settings, only Pb and Gel
Boost charge voltage: 14.4V (14,7V for Pb)
Float charge voltage: 13.8V


-DC/DC: Olys BSB1230
Manual: https://www.olyssolar.com/UEditor/net/upload/2021-01-23-24de9bf83e-50e3-49f6-ad97-8a8c53e6fdf7.pdf
LiFePO4 settings:
Boost charge voltage 14.6V
Float charge voltage 13.8V

Gel (14.3V) settings is more suitable and safe?

-Solar Panel: Epever Duoracer DR3210N-DDS
Manual: https://www.epsolarpv.com/upload/file/2008/EPEVER-Datasheet-DuoRacer.pdf
LiFePO4 settings:
Boost charge voltage 14.5V
Float charge voltage 13.8V

Gel (14.2V) settings is more suitable and safe?


The 3 sources will be connected to the Separate port of the BMS dedicated to the charge.
Will these values be adapted?

Do you think this installation will be good? My RV is not going to explode?

Thank you in advance.

That duoracer sounds very useful for RV / mobile applications, I hadn't seen that product before, surprised its not more popular.

Dzl said:

That duoracer sounds very useful for RV / mobile applications, I hadn't seen that product before, surprised its not more popular.

Click to expand...

The other products from Epever are more popular.
This one I liked because it allows to charge the auxiliary battery AND the motor battery.

"Olys" also makes a similar and cheaper product:
MPPT5012A-DUO-BT:

Charge Controller | OLYS

OLYS dual solar charge controller for camper, caravan, and self-contained solar systems etc. suitable four style battery (Lead-acid,AGM,Gel,LiFePO4 ),equipped with Atmel MCU chip，infineon MOSFET power tube,maximum power point tracking.

www.olyssolar.com

The Olys system is an interesting find.

And it looks like you can order them from Amazon (but ships from abroad).

I'd really be interested in your findings, when you get some experience with the unit....

OffGridGuy said:

The Olys system is an interesting find.

And it looks like you can order them from Amazon (but ships from abroad).

I'd really be interested in your findings, when you get some experience with the unit....

Click to expand...

Thank you, you can contact them (Olys) directly to buy.

And other than that, regarding my questions, you have no opinion?

Well, I'm kinda old school. I've been maintaining off grid systems on my Washington hilltop property for 20 years.

I'm often off site for long periods of time, so I want reliable, rock solid equipment, that I can monitor and control remotely.

I tend to stick with higher end equipment to maintain my battery systems. Midnite, Mastervolt ChargeMaster, and lately Victron.

After reliability, the next major issue for me is the ability to accurately set charge voltages.

I may want to set my system for a 80/20 charge cycle. But I find that most charge profiles, set by dip switches, only do a 100/0.

So that's why I was interested in your findings on the Olys system. With Bluetooth, they may allow you so set your own user preferences.

I have a few smaller systems on my property and lately I've been using the Victron equipment and I'm really impressed.

On one system I have two Victron Mppts, charging a single battery pack.

They have a $29 Bluetooth Smart Battery Sense unit that connects directly to the battery terminals. and via bluetooth controls both MPPT chargers, with AT THE BATTERY readings of voltage and temperature. (vs voltage readings at the controller).

And this may also link into their DC-DC controller. (not sure).

A little more of an expensive route, but my batteries are worth it. (And if one of the units dies Amazon will deliver my replacement unit, to my remote site in 2 days).

Sorry for the rant.... maybe a little too much morning coffee....

Good luck with your project !!

planetibo said:

Hello,
I am going to change the power supply part of my RV.
Here are the items I will have:

-EVE LiFePO4 280aH (very good contact with Selina)

-Daly Smart BMS: 100A + Separate port (charge set at 50A)

For recharging, I would have 3 sources:

-AC: Nordelettronica NE143-P:
Manual: https://www.mon-camping-car.com/pdf/10595.pdf
No LiFePO4 settings, only Pb and Gel
Boost charge voltage: 14.4V (14,7V for Pb)
Float charge voltage: 13.8V
View attachment 34877

-DC/DC: Olys BSB1230
Manual: https://www.olyssolar.com/UEditor/net/upload/2021-01-23-24de9bf83e-50e3-49f6-ad97-8a8c53e6fdf7.pdf
LiFePO4 settings:
Boost charge voltage 14.6V
Float charge voltage 13.8V
View attachment 34876
Gel (14.3V) settings is more suitable and safe?

-Solar Panel: Epever Duoracer DR3210N-DDS
Manual: https://www.epsolarpv.com/upload/file/2008/EPEVER-Datasheet-DuoRacer.pdf
LiFePO4 settings:
Boost charge voltage 14.5V
Float charge voltage 13.8V
View attachment 34878View attachment 34879
Gel (14.2V) settings is more suitable and safe?


The 3 sources will be connected to the Separate port of the BMS dedicated to the charge.
Will these values be adapted?

Do you think this installation will be good? My RV is not going to explode?

Thank you in advance.

Click to expand...

That HVD looks high. 14.6 is what you want. Maybe set the charge limit a touch lower (So you’re not always charging up to and tripping HVD).