Redarc DC to DC 25a Lithium Charging profile question

[chmura]

I have been using the REDARC 25A DC to DC charger for my AGM battery for 4 years now. I am upgrading to 165ah LiFePo battery which need a charging voltage of 14.4 +/- 0.2v.

I have a question on the charge profiles.

I have it set right now to AGM setting which charges at 14.6v

Redarc Lithium setting is 14.2v from the manual.

What setting do I use for this battery? 14.2 Redarc Lithium setting volage is to low for lithium batteries.

Should I leave it in the AGM charge profile?

 

[DiploStrat]

I have been using the REDARC 25A DC to DC charger for my AGM battery for 4 years now. I am upgrading to 165ah LiFePo battery which need a charging voltage of 14.4 +/- 0.2v.

I have a question on the charge profiles.

I have it set right now to AGM setting which charges at 14.6v

Redarc Lithium setting is 14.2v from the manual.

What setting do I use for this battery? 14.2 Redarc Lithium setting volage is to low for lithium batteries.

Should I leave it in the AGM charge profile?

As a rule with lithium iron, better too low than too high. Use the 14.2v.

 

[chmura]

Thanks, was thinking about buying the Victron DC to DC charger as it has more user friendly settings via the bluetooth app.

 

[DiploStrat]

I use both REDARC and Victron. The REDARC lithium settings will be fine. Remember, while lead acid really wants to be sure to get to a high voltage, lithium iron is the opposite. Anything above 13.8v is more than enough.