Originally posted by wantomake
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Update on the brick.
Got all five BMS's welded on this evening. Used hot glue gun to hold them in place. Will solder lead wires on tomorrow after Bible study.
Will try different experiments with the 5 batteries in the brick. Not sure which one experiment to do first since only have one working boost module right now. Can't wait to see how the BMS will work with the ideas presented here!
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Alum Cap Battery gets pole position after a 6 hr charge up. It is powering the system. There is a bunch of energy trapped in that battery. There is a lot to be said about pulse charging flooded Alum Batteries.
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If anyone had any question about the idling power consumed, here it is at about 1 watt or .8watt and the other picture is the alum cap batt running at a higher load value after running it a few hours.


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BMS battery management systemsOriginally posted by wantomake View PostGot the brick strips all spot welded in place. Measured first 3s 8p and got 12.4 volts ok. Used Kapton high temperature tape on both sides to protect the tape and strips which will get caught on things or shorted out.
Will weld the 5 BMS on tomorrow. Have a piece of 1\16 inch plexiglass to hot glue onto side of brick that holds the BMS's in place.
No comments about any of this, but just in case it's useful I'll post it.
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Got the brick strips all spot welded in place. Measured first 3s 8p and got 12.4 volts ok. Used Kapton high temperature tape on both sides to protect the tape and strips which will get caught on things or shorted out.
Will weld the 5 BMS on tomorrow. Have a piece of 1\16 inch plexiglass to hot glue onto side of brick that holds the BMS's in place.
No comments about any of this, but just in case it's useful I'll post it.
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That is funny but great you got it. Mine are due in Tuesday with the roll of strips.Originally posted by wantomake View PostI sent an email to the email address for technical support inside the spot welder and they responded to short out two small places to wake up the MCU. It worked and I'm back to welding the tin strips onto the brick.
BTW the rest of the words next to technical support address was " do not open case". lol!!!
I did a baseling test on 2 batteries were good but the 3 rd only gave me 2wh. Two batteries blew out yesterday and stopped the process at 40WH burned and the two good packs straight to the converter yielded 33WH
Baseling test failure throws off all of my tests. The batteries began popping the second day and the 3rd day. Too bad. Getting new batteries welded up will be great. I have a spot welder out of a MOT.
...............................Last edited by BroMikey; 08-05-2022, 04:50 AM.
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I sent an email to the email address for technical support inside the spot welder and they responded to short out two small places to wake up the MCU. It worked and I'm back to welding the tin strips onto the brick.
BTW the rest of the words next to technical support address was " do not open case". lol!!!
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Well it's official, my spot welder stopped working after 1 year 4 months!! Sent an email but we all know that's a waste of email time. Amazon sells crappy stuff but the parts for the lithium stacks has been ok.
Turion, Jehu Garcia lives in LA area and has some 18650 deals time to time. I've bought all my pcb setup from him. BMS I buy from other sources.
Thanks Orion. I don't know you much but thanks.
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I was fun while it lasted see you in another 5 years? Or you could post an experiment that helps others to find the extra. Generally people who can get the extra want to share it. But not you? It's okay, whatever you want, I just thought you were back with a perfect system. My mistake.Originally posted by OrionLightShip View Post
I don't have a youtube channel
Not one person on this forum gives a crap about what I know wish Matthew Jones was here to banter with and I hope he reads this and opens his PM to send me his email.
Like I said..... Good Luck to All
Orion
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I don't have a youtube channel and I don't have any reason to share my work. 3BGS is outdated tech....good to use as proof but not very practical. There is a well known method of balancing a resistive load to make it work but people haven't done the research to find it. If you did finally figure it out and get 20 watts or more you could boil water and save the planet.....hahahaha. If you provide clean water and food you just increase the world population. No thanks.Originally posted by BroMikey View Post
Thx Orion
can you post a link to your youtube work? I enjoy your experiments
The only way I can keep from being mean and rude to people here is to leave and stay gone like last time.
Not one person on this forum gives a crap about what I know because everyone has their own agenda. Perfectly normal. Working together is the hard thing no one gets. Not the society I vote for.
I've tried to make friends here but wasted effort.
I may choose to post in my thread or delete it but I'll never post in your thread again...nothing personal....just done with back and forth crap here and with Bi.
The only reason I am posting this is to say I wish Matthew Jones was here to banter with and I hope he reads this and opens his PM to send me his email.
Like I said..... Good Luck to All
Orion
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I find it humorous that bistander has dumped all over the 3 Battery System for YEARS, but now that you are posting data, he has nothing to say. Wonder why?
oh, wait, he said he doesn’t need to build it because he knows everything about it. LOLLast edited by Turion; 08-04-2022, 12:34 AM.
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