Basic Programmable BMS
I am just wondering if anybody else has used an inexpensive programmable BMS. Over the past year I have built 4 Leaf module based packs utilizing a BMS that can be programmed via a USB cable and has some Bluetooth functionality. I keep seeing what looks like overkill when it comes building the BMS.
|
Re: Basic Programmable BMS
Quote:
I used a preprogrammed simple 14 cell BMS PCB on my 7 Leaf module RXV conversion. I retained my Lead/Acid charger. I would be interested in a simple programmable BMS for my 2Five conversion that will use 16 of the 100 A/H GBS NiFePO4 cells. Bob |
Re: Basic Programmable BMS
I read your install. Your configuration was even more advanced than what I normally do because you are cutting off the AC side of the charger. You have used relays for interlock and bypass.
I have the BMS cut off power on the DC side of the charger if any cell hits 4.2v, or the pack reaches 58.8. I purchase a new Li-on charger for less than $200 that is programmed to turn off about .5v shy of max voltage. So for a 14cell Leaf pack I have the charger cut off at 58.3. This gives me two different forms of protection from overcharging. My charger is the one that normally stops the charging, but the BMS can shut down charging as well if the charger does not do its job. |
Re: Basic Programmable BMS
W
Quote:
What BMS are you using if you don’t mind me asking? |
Re: Basic Programmable BMS
Just google 14S smart bms. I used one like this: https://www.aliexpress.com/item/14S-...794186005.html
|
Re: Basic Programmable BMS
Quote:
|
Re: Basic Programmable BMS
It doesn't appear to have an HMI, or display/touch panel.
|
Re: Basic Programmable BMS
2 Attachment(s)
Quote:
I hardly ever connect to it, but its there for the occasional spot check of the cells. I use my in-dash ScottyB voltage meter to view my pack voltage to get a sense of when to charge. |
Re: Basic Programmable BMS
Quote:
Do I really need a display/touch panel? No, operationally it has no effect on the pack. Its not like I had a backlit display for my each of FLA batteries, so why would I need or want one for my Lithium modules? I spend around $120 per leaf module which is a similar price per FLA battery, so why would I over-complicate it with an elaborate battery management system that costs more than the whole battery pack itself? |
Re: Basic Programmable BMS
Quote:
http://bfy.tw/LDEp Quote:
|
All times are GMT -5. The time now is 06:06 AM. |
Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
This Website and forum is the property of Buggiesgonewild.com. No material may be taken or duplicated in part or full without prior written consent of the owners of buggiesgonewild.com. © 2006-2017 Buggiesgonewild.com. All rights reserved.