6pcs 3S 20A BMS 18650 Li-ion Lithium Battery Charger Module BMS Protection Board PCB 11.1V 12V 12.6V Module Over-Discharge/Over-Current

Lo que esperaba para mis proyectos

This item worked as designed. Happy Camper

Very small footprint, easy to incorporate into a project battery pack.

all of mine were defective, some would not produce 12.6v, some would not charge after low voltage shutdown. Don't buy.

So I got a couple battery packs hooked up but it doesn't seem that they allow it to be charged through this bms, not sure if I'm missing something and if I am let me know cause I'd love to get it back up and going but it doesn't seem to be working as advertised

Lo he instalado en dos baterías, en una batería con 8 Amperios se calienta hasta casi 50 °C, sin embargo, el producto está especificado para 20 Amperios, por lo que es deficiente.

These have always worked out great for me. However note that the battery pack you wind up making with these is really an 11.2 v pack, not a 12v. This is important for some applications (as I've found out) that really require 11.5v or higher to power them.But that is on me. These boards work great and I've never had an issue with them.

Once the battery pack you connect this to is charged the output drops. So while the batteries are at 12.6V the output is only at 12.01v, and soon as a load is placed on the pack, the protection board drops even more to 11.2-11.3 Making these boards useless.... Final output voltage when reaching charged is below charged. Being they are "self recovery" a brief short circuit then bring the protection board back up to normal voltage. I am very disappointed... that I have to short the BMS just to get the proper voltage...I cannot recommend this product...and advise others to not buy it as well