Exploring Battery Cell Chemistry and Form Factors

and actually talk about the three fundamentals to make a world-class cordless power tool and that's the battery the motor and the electronics yeah because the motor and electronics the battery is only one part of it you've got have a really they gonna all talk to each that's correct yeah they all have to talk to each other to get the best performance durability in life okay and this is where I stop talking and you start talking all rights to the tree so let's let's start with battery packs okay so there are three fundamental elements when it comes to a battery pack okay there's the cell the physical construction and then the intelligence or the electronics okay and you really have to do all those things great together so to walk you through a quick history of how we got to where we're at today because this is important because as you mentioned it's it's you've all been very very quickly right so you have to have perspective on how we actually got here so you know back in the 80s early 90s this was the predominant player in the marketplace and for the first time someone didn't have to pull out say you know 50 feet extension cord to do a light drilling or fasting application now that being said this thing left a lot to be desired right now you're looking at it obviously you don't have to be an engineer to tell that the pack construction left a little bit to be desired right bring quality scotch tape I don't know so if people don't still use this design right correct yes so this is this is this is an older design skilled nickel metal hydride yep it's an older technology now because it left a lot to be desired there was a evolution along the way so this thing came along this is an 18 volt NiCad battery pack and from that battery was a pretty decent step-up in terms of power and runtime and because of that rather than just having say you know two or three products that work off that battery now you start to create a system right so you could get into Saul's high torque impact wrenches all that stuff now similar to the technology that was in here NiCad left a lot to be desired anyway I mean by that is you would start out really powerful at the batteries charge and then as you go down through charge would lose power right so at the end you'd be wrenching on trying to get the application done oh yeah the other thing is that there was no evolution