Which JK BMS to use?

[prepared1]

I'm not sure what the JK inverter style BMS might do for me, versus the "regular" JK BMS. I've watched Andy and his Off Grid Garage videos many times, and recently have been trying to decide on which unit to buy based on recommendations listed on his site.

For example, the one that pops up most commonly now is the JK-BMS-PB-V19. I plan to order from Amazon, and would like to do so today if at all possible. I'm confused about the part where you choose your size from their drop down menu. In my case I have an existing cabinet full of 16S lithium ion (NMC) cells. They are 60ah cells, one side is (7) server rack trays (16s) , the other side is (6) (16s) server rack trays. Is the "p" in the ordering information for "parallel"?

Andy also comments on the older style JK BMS, which he says now has all the same features as the inverter style.

This is a stand-alone cabinet: I would like to hook up a screen or tablet that stays on the battery cabinet. I have both Victron and Schneider inverters.

Is this enough info for someone to help me out? For me, simple is good. It would be nice to make this as much plug and play as possible. I don't care about the price . Thank for any help you can extend. I have terminal cancer, and need to get projects done while I am able.

 

[Korishan]

the JK inverter style BMS might do for me, versus the "regular" JK BMS

The inverter style is designed to communicate with and to control chargers and inverters on when to stop charging or to stop discharging instead of having to configure all that in the individual devices

These also allow you to connect multiple bms' together if they connect to a common bus and they are able to better keep things balanced

Basically you decide on how much current you are going to be charging and discharging at. this kind of directly correlates to how much current for balancing there is. If you go with the 200A bms it'll have 2A of balancing.

 

[prepared1]

Korishan: what does the "p" signify in the model number. It is what you have to decide when you select what version in the drop down menu. I intend for this battery to be a stand alone cabinet.

 

[Korishan]

I believe the "P" means "Power". So, 150P = 150A Continuous Output, 200P = 200A, etc
I'm not sure if they actually use different rated Mosfets or if it's just a firmware setting to cut the power output.

 

[prepared1]

Korisahn: You are correct. This morning I found a YouTube video that explained the difference in detail between the two types and the various versions. It had a Chinese speaker that did a pretty decent job, but more importantly, had detailed captions throughout.

Thanks for your help.