This weekend, I started measuring and drawing up my battery box. The box will be nearly at floor level in my RV but it will rest on a 3/4" sheet of plywood sitting on 4, 1.5" square studs spaced about every 4-5" for support of the roughly 150 lb bank (16, 3.2v, 100ah lifepo4 CALB cells). The...
I am using an Aims 6000w 120/240 inverter/charger. It isn't 'Smart' but is stone cold reliable. ATS works great and no issues in the 2 years I have owned. I have 1500watts solar and if I get a few days of clouds and batteries get drained, it does a great job of 'refilling' off the grid and...
Be sure the intended inverter/charger can handle more than your current solar panel array at 12v. I found a benefit where I could increase total solar watts to 1700 (vs 1000) just by going 24v. I have the 60amp AIMS charge controller powering a 24v battery bank (200ah lifepo4) and running a...
I agree about System Calibration. I have endeavored to identify all of the information about the different components in my system (from panels, MC4 cables, wire gauges, CALB Cells, BMS, Solar Charge Controller and Inverter).
I am in process of pulling all of this info into one place and...
I am in process of purchasing four, 10-foot sections of unistrut channel. My plan is to secure two pairs of two, 10-foot rails in the 20-foot space between the rear and front access hatches on my bus (MCI 102AW3, 40-foot bus).
I have a set of six (6) 3x6 SanTan Solar 270watt (250 effective...
In the instructions for my AIMS controller, they instruct to reverse the steps to turn system ON when turning OFF. That would imply following order to turn off:
Turn all AC and DC Loads OFF on the AC and DC panels ß--IMPORTANT
Turn the inverter OFF
Turn the Blue Sea inverter disconnect switch...
Since posting, I decided to increase the system from 2.4Kw to 4.8Kw. I ordered a second set of eight, CALB 3.2volt, 100ah cells. This will be my second 24v battery and will double my system from 100ah to 200ah. I also ordered a second BMS for this battery pack. Also, in meantime, I have...
Agree.
I am adding a 'Cellmeter 8' monitor to each 24v battery pack. This will augment the bluetooth app and provide a sanity check for readings. With my battery box essentially a 'foot locker', I plan to set up the box with the Cellmeters and BMS secured on top of rubber padding that is...
Good idea and I may still wire to manage it all with one BMS.
For now, I figured since this is my first DIY Lifepo4 bank and since I am paralleling them as two, 24v battery packs, I wanted to use a BMS for each pack (2 BMS).
In future, if I double to 9.6Kw, I may re-wire the two BMS to...
I may have resolved my PV panel power production issue. I found several articles describing 'hard reset' and pv breaker reset. I opted to turn the three DC breakers off for approx. 1 minute. I then turned each on, verifying production after each one flipped to 'on'. Since that time...
I looked high and low and came up empty on reasonably priced, ready made boxes that fit the footprint I wanted to put them in. I figured that since I am securing it to the (wall and) floor, I may as well build it to my specs.
Will post the specs soon.
After typing in the command above, rasp accepted. I then typed 'shutdown now' and it rebooted and I am UP on v3.12! Thanks! I applied same to my primary SD card so both are now on v3.12. Success!
To keep all things equal, I would carry on the connection in parallel add the two 100ah batteries into the mix of 4, 100ah batteries in same configuration for a total of six.
Do the Li time batteries have internal BMS?
I have six, 250watt, PV panels on the roof of my RV. They are configured in 3 pairs (500watts each pair). Each pair flows to a Midnite Solar DC breaker (20amp, 150volt) in a combiner box. The middle string of panels drops amps. I will see the panels reach peak amps of about 52-54amps and...
An update on assembly of my solar power wall in my MCI bus.
I have configured my power wall that contains the SCC, Inverter, bus bars, DC converter (24 to 12vdc), 12v fuse block, in-line dc fuses and the three on/off switches for the solar power, scc power and inverter power.
In the course of...
Thanks. So, I will have two sets: three panels in series. 6 total panels.
The panels are flat on the roof with direct sun until after 2pm when the sun begins to be filtered by tree canopy.
I am using ONE, DALY 500amp 8S 24v BMS. I will have eight, 3.2v 600ah battery packs. The packs will be connected serially. I am using 3/8" thick, 1" wide aluminum bus bars to parallel connect each 3.2v, 100ah cells in a pack of six cells.
I purchased the aluminum bar from an American...
I just completed week # 2 of stress/load testing of my 5Kw CALB Lifepo4 battery bank connected to my AIMS 6000watt Inverter/Charger.
Until Sunday all was well. Sunday morning, I went out to check the status of the system and found the inverter/charger was Alarming (constant tone). The...
I have two Ant Bms running. I have two, 24v 100ah CALB battery packs (8, 3.2v cells in series in each pack). The two packs are connected into my system in parallel. Battery cables to each pack MUST must be equal length (+ cables must match each other and the - cables must match each other in...
The Aims SCC offers a 'Lithium' setting with bulk only and 28.8V. The voltage cannot be altered. I was endeavoring to reduce by selecting 'Self Defined' as I found that, on those occasions when the system was so depleted that the inverter flipped to charging (while solar charging was...
In my current RV solar power wall, I use a 600amp blue sea rotary switch as a quick connect between the Lifepo4 battery and the rest of the 24vdc system (inverter charger, solar charge controller and secondary 24vdc charger). I turn the blue sea switch "ON" before I switch the Aims inverter...