Recent content by Wtavern

Just an update as this is my pseudo build thread. My ultimate goal with this build was to use the van without hookups and have effective AC that I could run overnight without little difficulty. Over the past week, I installed the Proair 20,000 btu undermount AC system I purchased from...

For what it’s worth, I have a 4s4p system with 16 280 ah cells from Amy Wan in a van build. I used the rec bms with Tyco contactors and it’s been working great after some tweaking.

Don’t really care about cutting edge efficiency with 1180 amp hours of battery. I just wanted to have as much cooling as possible and be under mounted as I have a pop top and no room for anything on the roof. Also, I don’t like the look of a mini split mounted on the back or sides and have read...

For what it’s worth, I had a lead acid battery in my Promaster based Hymer Aktiv Ecotrek system from the factory for this very reason and when I ripped out the stock system, I kept the lead acid battery to keep the protection as the alternator is my sole source of charging.

The unit is not manufactured by Truma, but by Proair. It was designed exclusively for Roadtrek before they went bankrupt. This reseller purchased all of the remaining stock when Roadtrek was liquidated. It features a 12 v Benling compressor that is used by multiple 12 v ac manufacturers. The kit...

Finally got everything installed and reinstalled the oem cabinet. Everything seems to be working correctly. I’m still waiting to see how much cooling I need before fabricating a front cabinet cover.

That is the inverter and unfortunately I don’t have a schematic, but I basically used the rec bms system with wakespeed and victron compatibility. Their schematic is below and mine is essentially the same except with the wakespeed alternator and no solar. As far as the 80/20 goes, I took...

If you’re looking for a way to arrange your cells, I built a new battery system in my Hymer Aktiv based on the same Promaster with 16 280 ah cells.

Yeah, it’s a bit much.

Got the majority of system installed, but I still have to clean up and label the wiring. I have aluminum/hdpe bars that will go across the cells locking them into place. Still waiting on a few fuses before going live this weekend.

I’m about to run a 4p4s system with 16 280 ah cells with the rec active. I set it up preliminarily and it seems to be working fine.

Sounds good. Haven’t researched too much about upgrading the wires, but I planned on using 12 gauge wire with ring terminals and connecting them to the stock banana connectors.

Not yet, but I’ve got them ready. My dc power supply comes tomorrow and I’m ready to just sit on them for the next week or so while they balance. Probably should charge in series and finish in parallel to save time though. I may change gears later, but I’ll be pretty busy with work over the...

Batteries finally made it from China via Amy on the forums. Made some bus bars that I’m not super happy with and test wired them with the REC BMS and everything seems to be working. Next up is to connect the cells in parallel and top balance them. I’ll also be removing the existing electrical...

Appreciate the compliment! It took some doing to get everything to fit the space I had with the wheel well jutting into the middle of the space. I was lucky the multiplus with its new form factor and the eve cells fit so perfectly. Hardly an inch to spare in all directions!