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.
I found this but no clue how it can work ?????? I am going back to search.
https://www.amazon.com/Renogy-Monitorin ... =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.
by bob_cbr » May 30 2017 8:10am
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:
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.
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.
I build e bikes. There not always pretty or practical but sometimes they work, at least for awhile. Immortality is not a dream but the future of our evolution. We were given the tools to forge our own destiny. We were created in gods image and shall evolve to live forever.