Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DeWALT's Version of the Inkjet Cartridge

I really love all of the many cordless DeWALT tools that I own. I have never had ANY kind of failure with any one of them. Their batteries are another story. They have the shortest working lifespan of any cordless tool brand batteries that I own. I am writing this because I recently ordered more 12v batteries and today discovered that I am again down to one working (barely) 18V battery across five tools and need to order more of those also. It seems I always need to order some. DeWALT might as well just sell the tools for dirt and make the killing on batteries (like inkjet printer ink). I just purchased a Ridgid drill with a lifetime warranty on the drill, charger, AND both LiIon batteries. DeWALT should offer the same type of warranty. It would no doubt bankrupt them.