DIY 280Amp LifePo4 With BMS voltage problem.

[larrylwill]

Thanks I go a used one for $139 plus tax, shipping, and whatever else somebody's cut is.

 

[larrylwill]

Yes but they will charge the batteries with the correct voltage, how are you going to control the charging? Just push 280amps @ 14.6 until they are full and then what just keep charging?

The charge current quickly drops around 120 Amps in less than 2 minuets and cotinues aas the batterys charge.
.

 

[larrylwill]

Hopefully you were lucky.

Incoming relative to what?
Outgoing relative to what?
I'm getting the impression you are reluctant to take our advice.

Ok you win, but I don't take advice without a lot of research. There is lots of wrong Advice out there. That's why everyone is fighting over politics and Covid. I will consider advice until I prove it out on my own. Thank you.

 

[S Davis]

The charge current quickly drops around 120 Amps in less than 2 minuets and cotinues aas the batterys charge.
.

Well I ran wire sized for 270amps for my charging circuit, I am going to try stacking the dc/dc chargers and see how it works.

I am putting a circuit to my main bus bar bypassing the chargers for linking the truck batteries to the two 280ah batteries in an emergency. If the dc/dc chargers don’t work well I’ll probably spring for a dual alternator kit.