My "obsession" with the battery part of the purchase stems from having to buy too many replacement batteries over the years. I give my tools a good workout, having built my own home, a large pole barn, 3 additional appx 16x30 metal sided buildings, and untold number of projects........but I'm not a professional. I started with Cman tools and still have a ton of wrenches,ratchets,and sockets. It was the "American" thing to do ! The drills had batteries that didn't last but a year or maybe two. You could buy a new drill with a battery on sale for slightly more than just the battery. Bought several drills and they all kept working.....just the batteries failed time and again. Decided to step up to a pro tool and bought a Dewalt, then a couple more Dewalt drills and a sawsall. Drills and sawsall continued to perform well but the batteries kept expiring just after the two year warranty expired. I had gotten to the point that I had a special drawer for receipts and every time I bought a battery I kept the receipt. I also took a Sharpie and wrote the purchase date on each battery. I would buy the 2 pack of Dewalt batteries for $99 on sale (non lithium). Never had any of them fail during the warranty period, but every last one of them failed just after 2 years. Gave all my Dewalt tools to my son because he still had some good batteries, and went and bought a "brushless & lithium battery" Kobalt. Boy was I impressed with how long they ran and how powerful they were. I knew I would get at least 1 extra year or a free replacement. After 3 yrs its only gonna cost me $49 fo a new battery. Went down to my sons place to help build an overhead crane in one of his buildings. We drilled 3/4" holes through 3/8" plates using the Kobalts.Darn near twisted my wrist several times when the larger drill would bite in. Took a pretty good while to drill since we had bad positioning for any leverage and had some cheap Harbor Freight Demling drills. My son called a few days later and said he had decided to finish drilling the last two holes. He used his Dewalt drill and ran down long before he was done. He got one of my Kobalts that I had left behind and finished the job. He's putting the Dewalt tools up for sale, and has already bought himself a Kobalt.
Some people say their batteries have lasted up to 10 years. Anyone who has had batteries last that long, good for them.....but I haven't had that experience and have spent quite a lot of money on batteries. I had the Dewalt chargers that recondition the battery and blink when the battery is bad.
Everyone has to make their own decision as to what they believe and how they want to spend their money. Once you make that decision, you are then locked in to that companies product and will make other pruchases based on the fact that you already have that products batteries. Its a never ending cycle. So, the wise thing is to be sure up front that you get the best bang for your buck. Like I said before....You can buy the Kobalt very inexpensively ($99) and you are guaranteed 3 yrs and 5 yrs. If it fails or at any time you decide you don't like it, you can get a full "no-hassle" refund at Lowes.
Whattya got to lose?
Ok, thats my diatribe for the day.....I'm gonna start a new thread and ask everyone how long their power tool batteries actually last, that way you can see what people say and decide for yourselves .......maybe I'm just cursed when it comes to batteries.