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Hello. I am trying to design an arduino circuit using one of these BMS from aliexpress. I plan to not pass current through the MOSFETs but use them as a signal to tell my arduino when they are open or closed. I intend to send 5volts to the positive and read the negative on a digital pin of...

Hello, I live in Canada and I just ordered this https://www.dhgate.com/product/us-eu-tax-free-ups-or-fedex-8pcs-lot-deep/480124765.html Ad says it will be here in under 3 weeks. Am I going to have a hefty bill to pay to customs when it arrives? I hadn't considered this before but three free...

I have 4 24volt nominal 305watt panels I am curious what happens if I connect 2series 3parallel to a charge controller rated for 100volts and 50amps? with 2 of these panels in series that's around 80volts open circuit. Well below 100v of the charge controller. Under ideal conditions I get...

Hello, Has anyone here looked into Nickel Iron batteries? They are heavy batteries only suited for stationary applications, but I am very intrigued by them. I am researching how they can be made in DIY fashion. I've done a bit of research and it looks like it may be feasible to manufacture...

Hello! I'm new here. I've been watching a lot of the videos on youtube, and I recall in one of Will Prowse's videos he says that he doesn't recommend a certain type of battery anymore because there is a limited amount of useable discharge due to the voltage not matching with what the inverter...