![Amazon.com: 84V 4A Lithium Battery Charger AC Adapter Power Supply for 20S 72V Lithium Li-ion Batteries Pack with 3 Pin XLR Plug : Electronics Amazon.com: 84V 4A Lithium Battery Charger AC Adapter Power Supply for 20S 72V Lithium Li-ion Batteries Pack with 3 Pin XLR Plug : Electronics](https://m.media-amazon.com/images/I/61-pMzb8akL.jpg)
Amazon.com: 84V 4A Lithium Battery Charger AC Adapter Power Supply for 20S 72V Lithium Li-ion Batteries Pack with 3 Pin XLR Plug : Electronics
![lithium ion - How can I power a circuit while charging its Li-ion battery pack? - Electrical Engineering Stack Exchange lithium ion - How can I power a circuit while charging its Li-ion battery pack? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/YM3md.jpg)
lithium ion - How can I power a circuit while charging its Li-ion battery pack? - Electrical Engineering Stack Exchange
![Can I charge the 3.7V battery cell with this power supply (12V charger) ? And how long should I charge it : r/ElectroBOOM Can I charge the 3.7V battery cell with this power supply (12V charger) ? And how long should I charge it : r/ElectroBOOM](https://preview.redd.it/s2ewqbsvwhj71.jpg?width=640&crop=smart&auto=webp&s=691ccfdae959f68b74c5e476dd067e985afb4957)