diy solar

diy solar

JK BMS Deal AliExpress

Trying a different route wit the JK (non inverter) to get some automated alerts out of Home Assistant so I don't need to look at it...all the time. Working on notifications if cells delta is out of spec although the active balancer is kicking butt.
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To be fair, I rarely look at BMS data.
Only if I have been a week or more since the last full charge. And the delta is all that I'm checking. As charging is finishing.
I would just rather see it, remotely.
 
Bah! No matter how many ways I tried, it would only let me order 1. After ordering the first 1, it let me order as many as I wanted. Go figure ...
 
Bah! No matter how many ways I tried, it would only let me order 1. After ordering the first 1, it let me order as many as I wanted. Go figure ...
Yeah, it's weird.
I was limited to 7 in a single order, for some reason.
Possibly shipping box size.
Had to split my order into 2.
 
Bah! No matter how many ways I tried, it would only let me order 1. After ordering the first 1, it let me order as many as I wanted. Go figure ...
Was the price the same after the initial 1?

I'd order 5 but if I can only get 1 at that price, then I might use something else that cost more but can all be the same.
 
Yeah, it's weird.
I was limited to 7 in a single order, for some reason.
Possibly shipping box size.
Had to split my order into 2.
I figured it out, the first one $5 cheaper is one of those special deals where they limit it to ordering only 1.

I have 6 total on the way.
 
I figured it out, the first one $5 cheaper is one of those special deals where they limit it to ordering only 1.

I have 6 total on the way.
When I ordered, I could go up to 7.
If I chose 8, it said it couldn't be shipped to my address.
 
You can get the 150A 8S-24S w/ 1A active balancing for $82.12 ea buying 4 or more.

With multiple packs in parallel is the extra 50A and 1A balance really necessary?

B1A24S15P
JKBMS Active Balance Bms 4S 8S 12S 13S 14S 16S 17S 20S 24S Smart Bms 60A 80A 100A 150A 200A 1000A Lifepo4 Li-Ion LTO Battery BMS
 
You can get the 150A 8S-24S w/ 1A active balancing for $82.12 ea buying 4 or more.

With multiple packs in parallel is the extra 50A and 1A balance really necessary?

B1A24S15P
JKBMS Active Balance Bms 4S 8S 12S 13S 14S 16S 17S 20S 24S Smart Bms 60A 80A 100A 150A 200A 1000A Lifepo4 Li-Ion LTO Battery BMS
Too late already bought.

I'd rather have the 200A rated BMS in case one BMS trips. The cascade effect can occur.
 
I prefer the 200a also.
1. Will be less stressed in normal operation.
2. Less minimum batteries to keep running, if the SHTF.
3. I oversize everything.
Yes, I do the same. I have a Daly BMS in my truck camper and it is rated at twice the load it will ever see. Never had a problem with it. I tend to derate things from China. Did the same with the 24V to 12V converter, it is twice the size it will ever see for a load.
 
Yes, I do the same. I have a Daly BMS in my truck camper and it is rated at twice the load it will ever see. Never had a problem with it. I tend to derate things from China. Did the same with the 24V to 12V converter, it is twice the size it will ever see for a load.
Yup
My BMS's in my current setup never see more than 50a.
And when my system is completed, it will be even lower.
My 100a 48v to 12v converter will never see 50% load.
 
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You can get the 150A 8S-24S w/ 1A active balancing for $82.12 ea buying 4 or more.

With multiple packs in parallel is the extra 50A and 1A balance really necessary?

B1A24S15P
JKBMS Active Balance Bms 4S 8S 12S 13S 14S 16S 17S 20S 24S Smart Bms 60A 80A 100A 150A 200A 1000A Lifepo4 Li-Ion LTO Battery BMS
You could go even less amps/cheaper on the bms and use those super cheap batteryhookup DC relays and bypass the BMS mosfets altogether.
 
Ordered on 01/22 received today; 12 days. Now it's time to find a cell supplier.
Literally just received another 10kw 15 minutes ago from 18650battery for my 2a balancer 200amp JKs I got a week ago. I do regret not getting the new jk inverter bms now since the kinks seemed to be worked out.
 
My experience with 18650 has been hit or miss. Good on the first purchase, not so much on the second. Probably not buying from them again.
 
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