PowerPro battery for a golf cart?

[wpns]

I've got a Bad Boy Buggies 48V 4WD golf cart with eight Trojan T-145 batteries https://www.trojanbattery.com/products/t-145-6v-flooded-battery so 200AH(ish) and 576 pounds that I've been contemplating converting to lithium.

After noodling around with drop-in replacements (Allied Lithium still not ready for prime time plus 180AH is $4400) I realized that EG4 PowerPro is:

280AH
305#
Compatible with (identical to) my six house batteries, so if the golf cart dies I have a use for the battery.
'Only' $3800

There are a couple of issues:

1) Orientation. The default mounting position for home use is upright/vertical, but the golf cart would require horizontal mounting in the existing battery tray. The cells would be vent-upwards, so that's probably OK, but I don't know if there are any other real constraints on orientation. Would vibration be a concern? Does the IP65 rating depend on the orientation?

2) Charging. I've got a couple of ChargeVerter V2/GC that I could use, but the conversions (PowerPro House Battery -> 18KPV Inverter -> 240Vac -> ChargeVerter -> PowerPro Golf Cart Battery) offend the engineer in me. I know you can't/shouldn't/mustn't(?) connect charged batteries to discharged batteries, but don't the PowerPro have adjustable max charging current? In an ideal world we could just connect the two banks together with 10-25 feet of wire (which would have the added advantage of upsizing the house battery bank when connected).

Bad idea? Good idea? Brainstorm? Water On The Brain?

 

[sunshine_eggo]

1) Cell vents up for the win.

I think the biggest issue is vibration.

IP65 specifically requires no water ingress from any direction.

2) Don't sweat the conversions. Sure, you'll lose some efficiency, but you're gaining a crapton in safety and convenience.

 

[wpns]

2) Don't sweat the conversions. Sure, you'll lose some efficiency, but you're gaining a crapton in safety and convenience.

So use the ChargeVerter V2/GC in closed-loop mode with the PP battery in the golf cart? Or just pick a voltage and current and charge it open-loop?

 

[sunshine_eggo]

So use the ChargeVerter V2/GC in closed-loop mode with the PP battery in the golf cart? Or just pick a voltage and current and charge it open-loop?

Personal preference.