AGM to Lithium - 06 F225 BEP Cluster Switch

[shawnee83]

I posted this in “Electronics” and now moving to projects for help.

I’ve started doing some research on replacing my start and house batteries this spring.
I did the original project and purchased my current set in the spring of 2017. I started getting low voltage shut down on my inverter only after 30/40 minutes at the end of the season. Usually 50% discharge runtime is about 2.5 hrs. I’ve not load tested them yet but based on age, I think it’s just time for new batteries In the spring. I also added a windless last season and I had to combine my batteries one time after running the windless a long time backing in to the beach. Another sign my start has also weakened some.
Current set up:
Optima Blue Top AGM Start
VmaxTank 200Ah AGM House
BEP Cluster battery switch.
ProMariner Pronautic 1220P hardwired charger. It does have a setting for the Lifepro4 Lithium.

I want to drop in a 230AH house and around a 100Ah start that are the newer Lithium LifePro4 type.
Will it work?
Mostly only concerned with the engine charging the Lithium and if I would need to add anything between the engine and the battery’s
Thanks all,
JS

 

[warthog5]

I'd say Yes.. You have a battery problem. As cheap as they are now, owning a Load tester is a Good investment. I suggested this to one of my customers that has ALL kinds of vehicles /equipment.


https://www.harborfreight.com/100-amp-612v-battery-load-tester-61747.html

Look VERY close at the Lithium batteries requirement for charging.
Lot's of Litiham's are NOT designed to be cranking batteries

 

[shawnee83]

T

I'd say Yes.. You have a battery problem. As cheap as they are now, owning a Load tester is a Good investment. I suggested this to one of my customers that has ALL kinds of vehicles /equipment.


https://www.harborfreight.com/100-amp-612v-battery-load-tester-61747.html

Look VERY close at the Lithium batteries requirement for charging.
Lot's of Litiham's are NOT designed to be cranking batteries

Thanks Wart. I understand on the cranking amps. I think they have that handled now on the latest ones.

 

[Inshore Chaser]

T

Thanks Wart. I understand on the cranking amps. I think they have that handled now on the latest ones.

Are Yamaha Outboards compatible (charging wise) with Lithiums? The manual for my 2021 F200XB says "no". Wish they were...

 

[shawnee83]

Well I ended up ordering my same start battery, the D34M Optima. I did order the LiTime 230ah plus Lithium for the house. I think it should work but I’m going to find out.

 

[shawnee83]

Are Yamaha Outboards compatible (charging wise) with Lithiums? The manual for my 2021 F200XB says "no". Wish they were...

I think this is true related to being able to fully charge the lithium. They need about 14.6V. I’ve only run mine on a quick water test and on the charger. So far, no issues. Mine will always be back on shore power and a digital charger to bring the Lithium to a full charge. I’m hoping that negates any other issues. I’m going to connect a Bluetooth smart shunt to the battery to verify how it’s working.