Recent content by IGTP

JBD AP21S002 v1.3 Worked fine for a few weeks and continues to do so, but now the BMS is not reporting either Amperage or Power (either charging or discharging). SOC does show a value, but it does not change with battery use. Voltages and temperatures are fine. Solar Assistant, both the...

It Lives! I decided to give the dead BMS one more try. An RS485 adapter from Overkill Solar (great price at $11) was working well with the new BMS and a PC running both the Xiaoxiang and Overkill PC apps. Hooked up the dead BMS and RS485 adapter. It was still dead. Read the settings and...

BMS is up and running. Since there is concern about using the Overkill app for a JBD contactor BMS, I decided to try the XiaoXiang app. As soon as it connected to the BMS, the contactor switched on. Everything seems fine, but I'm still leery of making changes. I'll see how it goes tomorrow...

Thanks for the reply. Sorry, but I can't find a "65000" below "20%" I see a "60000" beneath "-20C". What am I missing?

Settings.

Sorry. Should have mentioned the new BMS is a JBD AP21S002

Finally, I'm back. Got the new BMS. This one is for up to 21 cells, so I had to make some changes to the J2 balance leads for the extra wire. When I powered it up, I used the Overkill app. When selecting "Settings" the app automatically queries the BMS. Took screenshots of that, then...

Deon, I was just getting ready to reply to you post from yesterday. I have V2.5 and V4.3. I do not have the data file. I'll compare your file to my settings at my earliest opportunity. Thanks so much, Steve

deonbez, That's really interesting. I don't have a stand-alone charger. Maybe it's time to get one. My all-in-one inverters won't power-up without a battery connected. I'd sure like to try your solution. Steve

It's been a long week and the news is not good. Finally got the USB to RS485 adapter. The BMS only says the password is incorrect. The Overkill PC app says it is resetting the password. When I try to read the BMS again, password is incorrect. I'm still pretty sure this is a software and...

Thanks Brett. The contactor does briefly energize when first powering up, so I'm fairly confident the issue isn't electrical or mechanical. It really looks like something software-wise is inhibiting it. I hope to have a USB to UART adapter in hand Saturday and, if it works, I'll be able to...

Both Charge and Discharge toggle on and off. Tried the available resets in all four combinations of on and off. Other than the app and the BMS chatting, nothing else happened. I had called it a day and disconnected the cell connectors from the BMS. I reconnected them to address your...

Eggo, yes to your question. I'm holding out hope that a setting--currently not visible to me--is the culprit.

BTW.. It is interesting that each time I connect with the app or change pages, the app says "getting BMS data" or "reading BMS" with no intervention from me.

Sorry for the delay getting back to you. I decided to use the downtime to move some things around to have better BMS access. I saw your reply and put it all back together. A double "Aha!" #1 What you said makes perfect sense. I sent bogus info. #2 I now understand what eggo was trying to...