![Had this battery for a while. Is this bad? Its gotten on my firing pin and its having trouble firing. Tips on cleaning would be appreciated. : r/electronic_cigarette Had this battery for a while. Is this bad? Its gotten on my firing pin and its having trouble firing. Tips on cleaning would be appreciated. : r/electronic_cigarette](https://external-preview.redd.it/aEIMTTyb7YSwuwue9rGD0P1R5olqaoJnb5kgTGuMbyo.jpg?auto=webp&s=c4430c04dbac047a5150b6db4854e1c478530c1a)
Had this battery for a while. Is this bad? Its gotten on my firing pin and its having trouble firing. Tips on cleaning would be appreciated. : r/electronic_cigarette
![18650 batteries out of drill batteries with bad circuit boards. Batteries are from 2019, any fun project ideas? I have 20 total. Do you need them? Let me know! : r/batteries 18650 batteries out of drill batteries with bad circuit boards. Batteries are from 2019, any fun project ideas? I have 20 total. Do you need them? Let me know! : r/batteries](https://preview.redd.it/hgxynez2ljh61.jpg?width=640&crop=smart&auto=webp&s=531010b5c0012546b080b9999e46094a444f723a)
18650 batteries out of drill batteries with bad circuit boards. Batteries are from 2019, any fun project ideas? I have 20 total. Do you need them? Let me know! : r/batteries
![Repairing Damaged Or Dead Cells In A 18650 Pack Without Blowing Up Yourself or Someone You Love | ElectricBike-Blog.com Repairing Damaged Or Dead Cells In A 18650 Pack Without Blowing Up Yourself or Someone You Love | ElectricBike-Blog.com](https://electricfatbike.files.wordpress.com/2016/02/old-cells.jpg)
Repairing Damaged Or Dead Cells In A 18650 Pack Without Blowing Up Yourself or Someone You Love | ElectricBike-Blog.com
![batteries - My new 18650 battery got a little scratch near positive pole - Electrical Engineering Stack Exchange batteries - My new 18650 battery got a little scratch near positive pole - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/xWpZp.jpg)