Review on ⚡ 3Pcs Comidox 3S 12V 10A BMS Lithium Battery Protection Board Li-ion Charger Module with Anti-Overcharge/Over-Discharge/Over-Current/Short Circuit Protection by Michael Tarlue

Others have complained that current is charged to the battery to keep it conducting. I mean I'm okay with that haha. I can't think of a scenario other than mass production where you build a backpack and then ship it and demand it work without even charging it once. I got my batteries from the website and did they come in 3.1 or 3.2V? For example, yes of course I will charge it before using the package haha. Anyway, the reason I'm giving 4 stars instead of 5 is because there is a loose metal plate on the solder pad on the component side of the PCB. . So if you look up, there's B-, B1, B2, and B+, right? Each of these four solder pads has a thin metal rectangle that appears to be held in place with a thin layer of solder. This is a weird and I think dangerous solution as it's not obvious unless you accidentally get bad solder like I did. I had great solder between the wire and this weird secret rectangle, but the rectangle was almost completely ripped off the board. I ended up heating up and removing those rectangles and soldering directly to the PCB like a regular guy. If the seller could explain why they are here I would appreciate it and reconsider my review.