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Spent 2.5 hours on the phone with them today. They're refusing to give me my money back saying that they will process refund only after they will receive the panel back. My panel hasn't showed up yet (full week) but the FedEx number they provided is still not in the system. I'm VERY sceptical...

I agree but then what other company solar panels would you buy knowing they will stand by their product years after if you need warranty?

Just received the answer from JBD. Their engineering confirmed pin 4 on UART is equal to battery positive to power their BT module. So I guess to you any generic BT module one would have to step it down to 5v

I believe UART and RS232 are not interchangeable terms. UART is an interface while RS232 is a protocol/standard. RS232 communication can be using UART interface but does not have to (in theory). This geeky stuff is over my pay grade but from what I read, the signal that follows RS232 standard...

Interesting! I haven't received any communication from them. I would be lot more understanding of the problem had only communicated clearly and were transparent about the issues.

well thats a great question. Here is a screenshot of what I received for what it's worth.

Took some pictures today to show what I mean.

Thank you. Only follow up questions are: Balance Voltage. Currently set to 3.2. Is that the setting i need to change to 3.4? Also, I cannot seem to find a way to make sure it only balances during charge. Do you know where I can find it? I have both Smart BMS app and Sinowealth BMS tool on...

This is in US

So my biggest concern is beyond this particular shipment. If the company is barely existing then their warranty isn't worth anything. What other company can you guys recommend for flexible solar panels?

I'm in planning stages of a small solar setup I'll be using on a sailboat. 100-200 amp solar panel, 100amp hour, lifepo4 battery. I'm very confused about bms... Seems many bms advertised with balancer and protector. Does that mean i don't need a balancer or would i still be better off having...

Thank you, you right I should not need this pin to connect to the laptop. Do you happen to know if this voltage will become a problem when Jbd sends me the BT module they forgot initially?

Good day to everyone. I purchased lifepo4 batteries from OYE with these specs related to voltage and temps: Nominal voltage:3.2V Charge Voltage:3.65V End-of-Discharge Voltage:2.5V Charging Temperature：-5~60°C Discharging Temperature：-30~60°C Looking at DALY BMS I am struggling to find any...

Last week purchased 50 watt panel from Renogy directly from their website. Order got updated on Monday that it was shipped with FedEx tracking number with ETA for yesterday (Friday). But actually it was never shipped as the tracking number never showed up in FedEx system and I never received it...

Some googling lead me to a video that somewhat answers one of my questions. From that video i learned that active balancer maybe connected in parallel with a bms. Sounds like bms has balancing capability but it isn't nearly as efficient as an active balancer..

Sure it does but I thought it needs 5v and will it become a toaster if given 13v?

Thank you all! I went with DALY SMART BMS.

Thanks. This is going to be on a sailboat so I never anticipate these temps :)

I just received JBD SP04S034-H BMS. The seller forgot to include the BT module. While I am waiting for them to send it, I wanted to connect UART to my laptop over USB. I am getting 13.3 volts on pin 4. Is it normal? I am afraid of trying UART USB with my laptop.

Maybe someone could help me out. Received my first ever 200ah lifepo4 pack. Did not top balance the cells because I don't have 3.6v charger. I did connect all 4 pluses and 4 minuses for 3 days to self balance. Now i have them charging through daly smart bms. Cell voltage shows a bit different. I...

I was doing battery discharge test which, according to the BMS screen, went all the way to 0%. Then BMS stopped talking to PC because it seem to have turned itself off but it did not turn off the battery as the load was still powered. I disconnected it manually and started investigating...