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quick over view of my system. 2 packs each contains 2p16s 280a LFP. Total of 62 cells. Each set has brand new JBD JBD-AP21S002 7-21S 300A BMS. Individually they work like a charm. I have two bus bars way too oversized for this but when I parallel these BMS one doesn’t get charged only one...

Hello team. I need JK Smart BMS 48v 300a and I am in the Midwest. I need this like today. ?. Does anyone know anywhere in the lower 48 that sells this ? Thank you

My MPPSolar inver 11kw has been running for 14 months paired with 5kwp everything was smooth until yesterday inverter stated to act weird. It shows it was shut down because of the voltage going down to 48v (which is the way I have it setup. Checked evething waited until the morning as soon as...

I know about Daly BMS showing - (Negative numbers) when charging the batteries and showing. Positive when discharging this never created an issue but here is what I have discovered today. My BMS would show the negative (-) when charging and it would trigger the high voltage cell voltage 3.65...

After long research of high amperage bus bar I decided to go to my local metal shop and pick 12ft 1/4 x3 copper bus bar and yes I asked cut it for about 2ft bars. this thing weights almost 40lbs. I have batteries coming by the end of the month. what did I learn here ? Yes this is expensive...

Hello everyone. I am about to pull the trigger for large order (about $10k) for 302/310ah CATL/EVE cells. here is what I need to know before I do this. 1- I was not able to find even 1 seller that wanted to do PayPal payment. Most of them said TT or Ali Credit. My question is does anyone know...

I am about to order about 100pcs of CATL “310ah”. Has anyone got their order and tested them ? I don’t want t purchase that many batteries without knowing the cells are new. I am in talks with third party quality control company to check these cells before I commit. Plus some of us already...