In my current research, I need to build an experimental electricity microgrid and one important part is the battery as energy storage, but I need your recommendation of which battery solution or product (Sized 100 AH at 24V) together with its proper Battery Management System (BMS), preferably provides communication so that I can access information about battery's SoC, Voltage, Current draw and etc.
I am asking if anyone worked with a specific model that would recommend for my sepcific case. This will help me a lot, thank you in advance.
@Mohamed Numair
There are numerous batteries to choose from, varying in voltage, form factor and price.
My personal choice were Winston batterie LYP100AHA.
These can be operated from - 40 to 65°C and therefore do not need too much attention regarding thermal management.
Adding an EMUS BMS by Electronotus gets you data about current, SOC,individual cell voltage and cell temperature.
You can choose access by wire or bluetooth, but I don't know if the developers support open projects.
Might be worth asking.
Cheers - Martin
Hello Mohamed Numair ,
As Martin said, Winston batteries will be a good choice since they are based on LiFeYPo electrochemistry which is the safest technology in the market nowadays. Furthermore, they have a yellow, rugged casing and screw terminals to obtain robust system with easy and precise connections. On the other hand, GWL and GBS which are also a well-known brand, offer LiFePo-type batteries within steel frame. Another advantage is both Winston and GWL/GBS have prismatic housing which makes them easy to install and stack.
However, these LiFePo-based batteries have approximately 50% less energy density (e.g. having their nominal voltage of 3.2 V) than NMC or NCA-type batteries (e.g. nominal voltage of 3.6-3.7 V) such that Samsung and Panasonic cells are typically made of.
If you are looking for higher energy density cells and you can have an advanced BMS for pack protection, NMC cells give a good compromise between safety and energy density. These are mostly encased in cylindrical cells
All of these batteries can be purchased in a GWL shop, for example. https://shop.gwl.eu/LiFeYPO4-batteries-12V-1-1/
Considering BMS, if you want to have functions which are more than just cell's under- and overvoltage protections and cell balancing (aka basic features), you face with a narrow market. I recommend to use BMS123 Smart Battery Gen3 (https://shop.gwl.eu/Battery-Management/BMS123-Smart-Gen3-Complete-Set-4-cells-with-Bluetooth-4-0.html) which calculates SOC, measures voltage, current, temperature and can be accessed remotely.
I hope it helps to you.
Regards,
Bence
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