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Testing Status: Test bench has been built. Now I am awaiting on the LifoPO4 batteries to arrive. They should be delivered 25 May.

This is the my new 8 cell, 100ah minus the 8th damaged cell. It ready for testing a soon as the 8th cell arrives.

Batteries are charging now. I sat charge them at 40 amps to 29.2v then float them at 28.8v. Is this to high of a float?. Each battery has previously held a 6.4v for several days with no load or charge. I'm including a few pics. First are the rolls 6v bank, charging meter and mppt solar...

I haven't forgot about this tread. I'm still waiting on my 8th lifo battery to arrive from china. The original one was dropped in the packing process, so they added a new one to my followup order. Been playing with the FLA packs for a while base lining the capacity. If i take the 24v 400ah...

My research shows, batteries will only desulfate at higher voltages. Hard sulfation requires short burst of very high voltage to break the crystals loose. This can not be done with any normal battery charger. The batteries i shock never get much above ambient temperature. If your battery...

Being i have a 24v bank of 6v 100AH batteries that started out at 3.1v per and wouldn't even TAKE a charge. That now are able to hold a 27.6v float with only .7 amps of charge and are pulling a 400 amp capacity test, not bad for batteries with holes blown in the plates. You might not want to...

I'm still profecting and validating the solution, but I'm using a DC welder to shock the batteries with high voltage to desulfate. The worst of the 8 6v 400ah battery i recieved is currently on a 4amp charger at 6.8v. When i recieved it, it was at 0.4v with the center cell completely dead...

Test setup: 1. MPP Solar LV2424 connected to shore power for testing. 2. Main 24v DC battery bank input test guage. https://amzn.to/2EONu1m 3. Battery bank wiring combiner 4. Individual 24v battery bank test guage. http://amzn.to/2tuwPgs 5. Battery Bank 1: New 24v 100AH Lifepo4 with 8s...

No, i have 2 brand new 12v 100AH batteries i will be doing the initial testing with, but i plan on adding a single 24v 400AH lead bank to the test system.

Well, when a friend gives you 22 Rolls 6v 400AH lead acid batteries, it worth testing the theory. I have reconditioned 7 out of 8 so far. 7 were at 3.1v when i got them and 8th was .4v. #2 cell is dead, but i think i can fully recover it. I should create another thread on here how i mananged...

Thread created for my testing https://diysolarforum.com/threads/testing-lead-acid-lifepo4-battery-pack.19578/

This is my official testing thread for my lead acid/LiFePO4 battery bank testing. MPP Solar LV2424, wiring and testing equipment arrived. 8x3.2v 100AH Lifepo4 cells shipped from China. Two 24v Lead acid battery banks built, installation of all equipment and testing is scheduled for this...

Do you mean using the bms to shutoff the LIFEPO4 discharge so they dont get sucked down to 12v on the discharge? I am planning a test and welcome any suggestions on how to properly set it up.

Could you use a programmable LFP BMS to limit the LFP batter bank to a 14.3v charge and 12.8 on the discharge? The hybrid inverter/charger would be set to 13.2 float, 14.4 max charge and inverter will be set to shutdown at 12v. So with these setting: 1. the hybrid inverter would charge both...

Here's another interesting article on hybrid GDT/MOV. It's very interesting but my degree is aerospace gen not electrical egn. https://www.electronicproducts.com/hybrid-protection-devices-combine-a-gdt-and-mov-in-a-single-pa Type 1/2 SPD...

In my research I stumbled across this video.