4s 10a Lithium Ion BMS

We had a few of these laying around. Not sure why we ordered these. They are at most a 10a BMS but I would recommend using these as a 5a BMS. This will work for 4s lithium ion, not lifepo4. If you have a small 4s lithium ion pack you want to add protection to this is the cheapest option. Just $3 and we only have a few available. Just want to make sure these go to someone who can use them.