How to determine BMS for LiFePO4 battery pack?

[CMBX]

Hi all,

I am totally new to this, but I really got enthusiastic after seeing Mr. Prowse video on DIY battery.
So I decided to make a jump and bought Sinology 4pcs Deep Cycle Prismatic 3.2V 200AH LiFePO4 Batteries
I want to create my own battery pack for a solar system.

How do I decide what capacity the BMS needs to have for this battery pack?

Many thanks.

Mike

 

[offgriddle]

In my humble opinion, BMS is essential for maximum safety and performance from your batteries. Looking up "battery management system lithium ion phosphate" on Utube revealed a wealth of information. Good luck and have fun with it!

 

[Supervstech]

Hi all,

I am totally new to this, but I really got enthusiastic after seeing Mr. Prowse video on DIY battery.
So I decided to make a jump and bought Sinology 4pcs Deep Cycle Prismatic 3.2V 200AH LiFePO4 Batteries
I want to create my own battery pack for a solar system.

How do I decide what capacity the BMS needs to have for this battery pack?

Many thanks.

Mike

The capacity will be based on the amp demand of what the battery is powering.
If you have 12v setup, and you have a 3000watt inverter tied to it, you will need a bms capable of controlling 250amps of power...
if you only have a 600 watt inverter tied in, the bms can be 50 amps...

Will did a video where the bms was for charging and low voltage cut off using a relay or battery protector. This gives you other options.