Search found 9 matches

by RandallATX
Wed Sep 14, 2022 3:21 pm
Forum: Tesla
Topic: Tesla Charger Support Thread
Replies: 785
Views: 128618

Re: Tesla Charger Support Thread

My pleasure :). How many kW did you get from it? I have no idea...? I didn't have cooling hooked up to the charger yet, so when the charger modules got to about 55c, I shut it down, but that brought me back up to 300v from 120v, so that was awesome. My statement is highly under-stated; I did a happ...
by RandallATX
Wed Sep 14, 2022 5:20 am
Forum: Tesla
Topic: Tesla Charger Support Thread
Replies: 785
Views: 128618

Re: Tesla Charger Support Thread

I noticed your AC current limit is set to 20. I had some strange things happen with similar settingg. Can you correct it to 16? Also you must connect HV battery for charger to work correctly. hot damn that did it. it also seems to be talking to the CAN quite well. my SOC shows 124% but there are wo...
by RandallATX
Wed Sep 14, 2022 4:41 am
Forum: Tesla
Topic: Tesla Charger Support Thread
Replies: 785
Views: 128618

Re: Tesla Charger Support Thread

I noticed your AC current limit is set to 20. I had some strange things happen with similar settingg. Can you correct it to 16? Also you must connect HV battery for charger to work correctly. I will try that and report back. Thanks for the heads up. Also, I do have the charger hooked up to the full...
by RandallATX
Tue Sep 13, 2022 11:29 pm
Forum: Tesla
Topic: Tesla Charger Support Thread
Replies: 785
Views: 128618

Re: Tesla Charger Support Thread

I finally got some time to work on my 944 Tesla project but I can't get more than ~120v coming out of my Gen 2 charger. Here's my setup: Gen2 charger with v5aB3 board EVSE 32A 240v single phase external charger, P85 Model S pack (all 16 modules) for ~400v. On-board charger connected to the battery-s...
by RandallATX
Tue Feb 01, 2022 9:32 pm
Forum: Battery Managment (BMS)
Topic: Hitting some SimpBMS hurdles
Replies: 4
Views: 2650

Re: Hitting some SimpBMS hurdles

So, I appear to have detonated this controller IC. I did it accidentally shorting a contactor coil wire to ground. :? Screenshot_55.png I believe it is a bts5200-4eka , but hoping someone can confirm that is indeed the chip. Also, does anyone have one they can sell to me? It's... a little hard to fi...
by RandallATX
Tue Feb 01, 2022 8:59 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 226770

Re: Simp BMS

I'm not here to defend them or not, just trying to solve my challenges on my build.

Thank you for the confirming information!
by RandallATX
Mon Jan 31, 2022 11:28 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 226770

Re: Simp BMS

I'm asking Polykup to add support to their MCU for Simp, but in order to do that, they asked the following question:

What is the proper byte for SOC? From the manual it looks like there are multiple
Screenshot_53.png
Also, what's the difference between LSB and MSB?
by RandallATX
Mon Jan 31, 2022 9:39 pm
Forum: Battery Managment (BMS)
Topic: Hitting some SimpBMS hurdles
Replies: 4
Views: 2650

Re: Hitting some SimpBMS hurdles

Also, if anyone can help me ID the chip that cooked, I would appreciate it. I am googling all the numbers on it, but can't find it.
by RandallATX
Mon Jan 31, 2022 7:00 pm
Forum: Battery Managment (BMS)
Topic: Hitting some SimpBMS hurdles
Replies: 4
Views: 2650

Hitting some SimpBMS hurdles

Short and to the point: Here's my setup: Tesla LDU with 16 Model S batteries, Simp BMS, Polykup MCU/Advantics VCU, magic smoke released from an IC. 1. I ran what I thought were economized contactors thru the HIGH control pins on J4. This led to the onboard DC/DC converter getting hot, and the teensy...