Recent content by Heyjimmy911

I kept the roof static and use tilt only the side panel. The side panel also acts like an awning. I make enough power to run my a/c all day, a small freezer, a fridge/freezer, lights, microwave, cappuccino machine, toaster oven etc. I guess what I'm saying is you may not need the extra power...

@Luthj and @Lt.Dan, Thank you. I'm happy to realize my 2 weakest cells are not what will define my pack capacity. I've attached my updated theoretical pairing chart. I get an (theoretical) extra full hour of air conditioning this way! It's my first 2P pack. Thanks again for the upgrade.

Thanks Luthj. So you like Method A. Capacity first for a .1C typical current system. That's how I was leaning. It's for a trailer I'm building. The biggest draw will be the electric incinerating toilet and the split system air conditioner. When they are both on it will pull about 60 amps...

So, if you know the capacity of your cells and you know the the IR at 50% SOC what's the best way to pair up a 2P8S pack. Sort (pair) by Capacity first then IR, or IR first then Capacity? I've attached a small spreadsheet illustrating the two pairing methods, which is better Method A or...

Have you ever wondered if you could fit 16 280AH cells, a BMS, a pre-charge a fuse and a heater in a couple pelican cases that you can wheel around? Well, wonder no more. It can be done. Whether or not is should ever be done again..... well probably not. It was a huge pain, getting it all to...

Yes. I ordered and received 64 cells. LF280K. Cells not tested yet but they look great. Jenny Wu from Docan Tech was (and continues to be) awesome to work with. She provided the best communication and updates. When she didn't know the answers to technical questions, she followed up with...

I have a few victron solar charge controllers and and I don't have a chassis ground. I did have to return one to victron for warranty replacement. Why do they need the chassis ground? I wonder if that's why one of them failed.

I have a Xantrex Prowatt 2000 SW inverter and experienced the same thing when trying to run a mini fridge. The Xantrax was the problem for me. I assumed my individual unit was bad but now I think it may be a common failure. To test, I bought a crappy 1000W modified sine wave inverter at a rest...

How many amps (surge) do you folks think it takes to start a 48V golf cart? I blew up a 300 Amp DC Contactor yesterday on my maiden test voyage. Actually moved about 24 inches at the lightest throttle I could then...,. bang! No fire, but plenty of smoke. It's a chargery system. I've read...

Does the chargery control your Elcon as expected? I'm trying to do the same thing, my Elcon is with them now being re-programmed. They are men of few words. Anyway, If you got it to work would you please let me know which optocoupler you used on COM 1 to control the Elcon. Also would you let...

I think so, the quotes above are from Jason, but only with the isolation of the photo-coupler. The person re-programming the Elcon charger indicated his charger can be triggered to change an action either by a voltage or by a circuit opening or closing. He can make that action whatever I want...

I bought a chargery BMS and need a little help integrating it to my golf cart. The bms has the ability to send a signal to the charger to reduce current as individual cells approach the high voltage discharge. The challenge (for me) is interpreting the technical information between the BMS...

I used Yoshi Grill Matts between the cells, cut to size. They are made of PFTE and very thin. My goal was to prevent the thin blue plastic on my cells from rubbing against one another and eventually causing a short of some kind. Also it won't melt or soften when hot like other materials, for...

The compression is achieved only in the center 2.5" strip of the 4 end cells as set up in the photos I shared. In the first photo you can see the holes the threaded rods run through. In the second photo you can see the covered threaded rod providing the tension. The vertical supports that hold...

No, you need to go totally overboard, like me. You will thank yourself in 8 years when you squeeze extra cycles out of your old batteries and all your friends on here upgrading to the latest and greatest. :) Buy a welder from harbor freight, a spool gun, scrap angle from Arlo metals, teach...