Lithium batteries

[Spower]

I'm on shore power but my converter will not charge my batteries unless I push a button then it goes into boost mode and charges them.
My question is will my furnace run them down to nothing over night? Its freezing so I have to run furnace.
Thanks!

[Bookemdanno]

What model do you have? My converter will still charge my lithium while on shore power, but I have to hit the boost button as well to top them off. I just hit the button when we get to our destination and hit it again before we leave to top them off. I would think that your converter would still charge the batteries to 80%-90% without having to hit the boost button??

[Spower]

Its a PD4500 I believe. Once I push the button it will stay in boost mode 14.6v charging for 4 hrs after that it goes back 13.6v. Will that lower voltage continue to give them some charge? I dont know.

[Bookemdanno]

Yes, the lower voltage will still charge the lithium. I have same converter as you. If you never hit the boost button it will only charge the batteries to 80%-90%. It will do that consistently when on shore power. You have to hit the boost button to top the batteries off to about 98%-99%.

This was all told to me via email with a tech at progressive when I was considering changing out my converter…I decided not to and just hit the boost button!

[Spower]

Originally Posted by Bookemdanno

Yes, the lower voltage will still charge the lithium. I have same converter as you. If you never hit the boost button it will only charge the batteries to 80%-90%. It will do that consistently when on shore power. You have to hit the boost button to top the batteries off to about 98%-99%.

This was all told to me via email with a tech at progressive when I was considering changing out my converter…I decided not to and just hit the boost button!

Perfect, thank you!!

[Spower]

I just installed them today, 2 battle born 100ah, today will be my last day on shore power for a long while, excited to see how they do while boondocking.

[Bookemdanno]

Originally Posted by Spower

I just installed them today, 2 battle born 100ah, today will be my last day on shore power for a long while, excited to see how they do while boondocking.

I have the same…you’ll be happy!

[Rustynuts]

Originally Posted by Spower

I just installed them today, 2 battle born 100ah, today will be my last day on shore power for a long while, excited to see how they do while boondocking.

Have you checked your PD4500 to see if it’s Lithium compatible, I believe Jayco started installing the newer ones in 2019 and newer and they have a switch on the board to change to a lithium charge profile. There is a switch to change between Lead Acid and Lithium.

[Spower]

Originally Posted by Rustynuts

Have you checked your PD4500 to see if it’s Lithium compatible, I believe Jayco started installing the newer ones in 2019 and newer and they have a switch on the board to change to a lithium charge profile. There is a switch to change between Lead Acid and Lithium.

Yes, read posts above.

[Rustynuts]

Originally Posted by Spower

Yes, read posts above.

If you have it set to Lithium, you shouldn’t have to hit the boost button at all to charge them to capacity.

[Spower]

Originally Posted by Rustynuts

If you have it set to Lithium, you shouldn’t have to hit the boost button at all to charge them to capacity.

There is no lithium setting.