On March 21 we received our new EG4 rack with six 100 amp hour 51,2 volt modules. We replaced 8 six volt 430 amp hr L16 style flooded lead acid batteries. Shipping from Texas to Tennessee was fast and via R&L Carriers, the best in the business from my experience. All items were well packaged...
Lowes sells Southwire brand THHN single conductor 90c building wire. Pull through schedule 40 plastic conduit. For some reason Lowes is the best priced supplier for Southwire, which is Tier One power wire.
Sell your 120vac generators and buy a 240vac split phase generator with a Nema L14-30 or L14-50 receptacle. You can run the Chargeverter with adapters but will only be getting slightly more than half of its rated output.
A simple voltage display with 0.1 V resolution works for me because my loads are very steady, and therefore voltage is a good indication of SOC. Close enough, anyway, since battery capacity is generous for my needs. The best power system is the one you don't have to think about and just hums...
After 19 days since installation all six Lifepower4 modules show SOH as 99.8%. During the first week of use I overcharged a bit and turned on some protective BMS features. Now bulking at 56.1V with 0 minutes soak time and floating at 54.0V with no additional over voltage alarms or change in...
As cheap as they are, and since you have a bigger generator, buy a second Chargeverter and set output of each to 75 amps for a total of 150 A. Generators are way more efficient when you load them down.
All battery info comes from hooking up a laptop using the qt-bms-test software. No separate shunt in the system. The voltage of the 96 cells is matched The fault is with the BMS calibration, I suspect. If I was writing the firmware I would recalibrate the SOC everytime the module was charged...
At the following link is your solution. And no, the link is not an affiliate link. I am just an end user.
https://www.campingworld.com/excel-vent-free-tankless-propane-water-heater-low-pressure-startup-1.6gpm-105040.html
I've been using one of these units since November 2021 with no major...
I bought an $8 digital voltage display which is mounted on the living room wall. Basically if my battery is above 52.0V, my LifePower4s are above 20% SOC IRL. And I can look out the window to see if the sun is out and if the 9kw pv is going to kick in. If so, the modules will charge up fully by...
The one of six modules that indicates full charge with 100% SOC is the one I use to give a general indication of charge state. My only concern is what happens when the lowest SOC module approaches 0% indicated SOC. Will the BMS shut down the module when the actual SOC is closer to 23%?
I have Solerex panels from 1999 that I am still using. They are no longer feeding main household power but have been put into dedicated special purpose such as water pumping and energizing the perimeter fence.
I agree the mounting tabs are too small for direct mounting. I bolted them with No.8 (4mm) screws to two vertical DIN rail strips and used 1/4 concrete screws to attach to concrete block. Gives a 1/4 inch air gap between the chargeverter and the block. Direct mounting to block may embrittle...