Without vision, even the most focused passion is a battery without a device.

Ken Auletta

This is a copy of a post from my other Blog Dated June 30 I also included a post from July 20 from this blog.

It is 5 AM, and I felt like writing.

I am off-grid. I cur­rently use lead acid batteries, I will be switching to lifep­04 as I can afford it, starting with a single 24v 100 Ah battery. I also own a Bluetti EB3A and have since learned it doesn’t do pass-through charging if you use an inverter generator. That story here. That led me to find and buy a 24v, actually to be precise a 25.6v LifeP04 battery as a solution.  Red O D O as it is pronounced is the one I chose to buy.

I hoped it would solve the issues I have with my Bluetti. As time goes on, I will replace all my SLA batteries with Lifep04.

So the fi­rst Red​ O D O Batt­ery will be directly connected to that device, to extend its runtime and to ke­ep it charged. I will use solar, and wind power du­ring summer months​ and an inverter genera­tor to keep my​ bat­tery charged during the short snowy wint­er days.


The only thing I see missing from this battery is the ability to monitor it with Bluetooth. A suggestion for Redodo, perhaps in the future you might use a BMS with Bluetooth capability.

I will do a further write-up about the battery when it arrives,​ but to make it clear, I never expect anyt­hing in return. I am paying for this item.

My order is done.  The Red O D O battery, just awaiting shipping now.  Will I be able to have high-speed internet and my Xbox running for more than an hour? I hope so. It’s going to be a skinny month.

 

July 20 Post    Lazarus, Name for my Dead LFP

“Our friend Lazarus has fallen asleep, but I am going there to wake him up.”

John 11:11

I am not religious, I do believe in God, and John Wayne.

My brand spanking new $1000 (today’s price CDN)  LIFEP04 24v 100Ah was dead.  I had it directly connected to my input on my Bluetti. That story is in a previous post.  My fault, I fell asleep with my Bluetti on, and it drained my LFP so low my charger couldn’t see it.

Like I said in my Bluetti post, my monitoring solution is on its way.

I carried the 48-pound battery down the stairs, yes with a broken back, and damaged knees. One step at a time. I got it set up on an end table I made when I was more active.

I spent time yesterday looking for an answer to my problem. All the answers out there were for 12v batteries. I needed a 24v answer. I did have two almost-dead 12v AGM. I wonder if that would help.

I contacted Red O D O tech support. This is what they said.

Hello Rod,
I might have misunderstood your battery question ☹ So sorry.
Are you meaning your battery BMS is being cut off for over-discharging?
If yes, you need to cut off the load of the battery and put the battery aside for 30mins. Then the battery will automatically recover itself to normal voltage (>20V) and can be used after fully charged.
If the battery is unable to recover itself after above steps, please try activating by one of below two methods. After activated (voltage > 20V) and fully charged by normal charging method, it can be used normally.


Method ① Connect a 36V solar panel directly to charge the battery without a controller for 10~30mins in sunny daytime

.
Method ② Connect the battery with a charger with 0V charging function (it can charge the battery starting from 0V) to charge the battery.

Here we have been under a large cloud of wildfire smoke since early May. Solar was not an option. Some days I can see the sun through the haze, but my solar panels can’t. I don’t own a charger that can revive dead LFP. My MPPT charge controller was about ten years old, I didn’t have the manuals, and I am sure the company didn’t exist anymore.

It turned out one of the AGMs was dead. I had my old dead van battery sitting in the battery room. That and the almost functioning other AGM that I hoped would do the job. I hooked them in series as best I could with what wire I could find. I measured the voltage, 19 volts, and that was after charging.

I repeated what I saw in the video. I connected the neg cable to the neg on the LFP and just touched the positive for a second. I heard a click inside the battery.

Thank you So much, Professor Hobo.

It had come back to life. So I named the battery Lazarus. I put on the charging cables. It hesitated for a forever moment, then it started to charge.

BTW, Frankenstein was the name of the doctor, not the monster. Yes, my hair looks like Wilder’s. ?

It is charging now. It will take two days at 10 AMPS or 10 hours, maybe more. I will check it in a few hours.  Ya go for the more it has been charging for three hours it is at ten percent.

After burning 5 liters of gas, that’s a gallon more or less for some people, I stopped the gen for the day.

At 5 PM, my time, the charger was reporting either 44 Ah used or 20 percent full.

UPDATE: On day two charging all day, the charger shows 48.4 Ah used or stored, not sure which. It still shows 20 % full. Refilling this battery is getting expensive.

Tomorrow we will try again.

I learned my lesson. I will be a lot more diligent about my voltage levels in the future.⚡

Thanks for reading,    … Pilgrim.

Since I wrote these posts, I learned to use a failing of my Bluetti to start my BMS. My EB3A back feeds power through the DC input port. I plug the DC input cable connected to the battery, leave for ten seconds and my charger starts charging.