To "weld" you want to heat metals to be welded till solder sucks onto metal like a glove. Piling solder on top of metal obscures proper weld verification, adds excessively prolonged heat and wastes solder.
Yea. I hate soldering. I am glad I am not soldering cells any more. Just wires. Today I will do a search on Y balance connecters as if I want to add a Bluetooth BMS to any of my home built packs I want to NOT have to solder anything. I just want to plug it in. That is another thing I like about the active equalizer/balancer is that I can use it WITH a Bluetooth BMS. It is basically an insurance policy as if one fails the other will work as a back up.
NOTE that as good as the LTO pack might be and as wimpy as the first LIFEPO4 packs I am still building a second 12S and maybe even 15S LIFEPO4 pack to run in parallel with the wimpy pack/packs and will be using both my 10 amp 43.6V charger and my 15 amp 54.6V chargers as the 54.6V will charge the 20S - LTOs as well as 15S - LIFE and the 10 amp 43.6V charger will charge both 12S LIFE in parallel when I am finished so I should be set up nice for all my 36 to 48V needs.
For 60V I will order 4S - LiPo packs to run in series with the power modules which should increase range somewhat and will have plenty of discharge capacity for 45 mph gearing. If anyone has a link to 10S - Y balance connecters and 10S Bluetooth BMSs please post them. I am waiting on my first cup of coffee and am going to google search now.
I also need to solve the issue of theft proofing these batteries. They are too expensive to have someone walk away with them awhile I am in a store or somewhere. They must be locked to the bike frame and I need to double up my bike lock with one of those horse shoe locks.
Thanks.
LC. out.
PS.
I found this but no clue how it can work ?????? I am going back to search.
https://www.amazon.com/Renogy-Monitoring-Screen-Lithium-Battery/dp/B087TMZMP6/ref=sr_1_23?gclid=CjwKCAiArOqOBhBmEiwAsgeLmYM13-XfJGwigAgtoe4zyGmm1VOQ8aIZ4XPdUcRMGgDXFHMmN83NAxoCLvMQAvD_BwE&hvadid=390249366369&hvdev=c&hvlocphy=1023608&hvnetw=g&hvqmt=e&hvrand=2724307797075342127&hvtargid=kwd-322932940205&hydadcr=18883_9696171&keywords=bluetooth%2Bbms&qid=1641762776&refinements=p_36%3A1253504011&rnid=386442011&s=electronics&sr=1-23&th=1
I am a little confused on this item. I thought Bluetooth was a phone app. I like the concept but is too big. I want something I can mount on board. I need to build a dash panel I can bolt to my handle bars. Something the size of a medium size tablet. That is way too big.
OK. I found a 2017 thread I would like to re open. I need to read it to see how far it goes but the guy has the same issues as I do. Cell meters are 1 thru 8. I have two 5 in 1 meters but want a meter that can do 10S. 13S would be great but will settle with 10S.
https://endless-sphere.com/forums/viewtopic.php?t=88604
by bob_cbr » May 30 2017 8:10am
Hello,
Been using my e-bike for 350km now (Build review be posted soon) and all was good until a full loss of power. It looks like the BMS went and it got me thinking, about my battery.
I've been using a cheap 10s BMS of ebay:
Image
Now, for all I know, the battery could have a fault or the BMS could be a bust. The simple issue is my current setup does not provide me with enough information about the battery health.
My ebike has a LCD display with voltage readout of the whole pack, but I would like:
1. To monitor the 10s in real time. Every meter / Logger seems to be 1-8 cells max.
2. Balance charge a 10s pack with readouts. Is a icharger-1010b the only option on the market. OR
3. Use a better BMS with some kind of indication of its output.
I have active equalizer balancers now for 20S - LTO and up to 15S - LIFE. Two 6S and a 3S. If I order a Bluetooth BMS for all those packs it could set me back $200 or more. All I really want is to plug something in without butchering balance plugs to use two 7S meters.
I just want a meter that I can plug in and will show all the cell voltages. One for all my LIFE and LTO packs. I can zip tie it to my handle bar and stick a mini camera in front of it and record the data so I can keep my eyes on the road.
Please let me know and I will still need Y balance harnesses so my active balancer stays plugged in and do not have to continuedly unplug and plug back in like I was doing with the 6S - LIFE. A simple Y connecter would allow me to just plug in a monitor awhile the active equalizer does its job. Y balance connecters for each pack is way cheaper than a Bluetooth BMS for each pack.
Please let me know and I will keep researching.
Yea. Not getting anywhere.
Even if they made a small simple Bluetooth transmitter that could plug in to a 10S balance plug and I could see all the cell banks on a smart phone or tablet preferably it would work for what I am looking for. I just want to monitor the cell banks and make sure the active balancers are doing their job. It would be way cheaper than five Bluetooth BMSs.
two 6S.
one 3S
two 10S.
possibly a 4S if I build the 4S - LTO pack for 60V.
possibly a 12S if I build a pack from prismatic cells.
possibly a 3S if I want to add 3S prismatic cells for 15S.
Yea. I am getting aggravated. I feel like punching out my lap top. I remember doing this search before.
The 10S balance plug is male and plugs into the female (port with prongs) of the active balancer. I need a female cable on one end and two males on the other so can plug one in the active balancer and the other for a meter to monitor the cell banks
Not only do they not make a frocking 10S meter all the Y balance cables are the opposite. They are all wrong.
frock it. I guess I will just run them the way they are and when the batteries frock up I will throw them in the dumpster. It is not worth the aggravation for even $1,000 worth of batteries.
$600 worth of LTOs and $300 worth of LIFE down the drain.
From now on I will just order packs already built with Bluetooth BMSs installed.
Until then will run what I got until failure.
Thanks.
LC. out..