charge controller

  1. flasergames

    LiPo cell overdischarged (down to 0.7V) [charges just fine]

    Hello, I am currently re-purposing my old powerbank for a robotics project (BMS and LiPo will be integrated into a 3D printed case). The Powerbank (CellularLine FreePower Slim 5000) was unused for 7-8 months and while opening It, I measured the cell voltage, which turned out to be ~0.7 V...
  2. E

    3.3V battery pack / charging solution

    Hi folks! So I'm looking into the following, but having a very hard time finding any (remotely) definitive answers. For my smart home, I'm looking to integrate more and more sensors that can relay all sorts of information. Most of these sensors I create myself using ESP32's and the like...
  3. anditechnovire

    Lithium batteries charging

    Please I have a bunch of lithium batteries connected in parallel, each rated 3.2v and 3Ah.(about 4 of them. I have a laptop charger with an output of 19v at 2.1A. I know I can't connect it directly to the batteries, so what type of circuit can I use to charge the batteries via the laptop...