Superb Choice Battery Compatible with 756478-421 756478-422 HSTNN-LB6i HSTNN-PB6I V104

welcome back today on dialed in DIY we're ripping into a bunch of old laptop batteries and we're not just trying to find out what's inside we're actually going for free batteries that we can use in a lot of other projects so we're gonna kick into six different battery types we're gonna separate them we're gonna test them and I'm gonna talk a little bit about where I get them and what I'd like to do with them once I have them apart there are definite risks when it comes to working with lithium-ion cells so make sure to do some research and know what you're doing before you start cutting these things apart I have a lot of uses for old and rechargeable cells including making these battery packs which I've put in a previous video so let's begin working our way through these six different battery types and we're gonna start with a very basic internal kind of a laptop battery the type that yo