The SKIL 14.4V drill with the Li-Po battery is the handiest tool I have. This is the third battery I've had the original and two purchases. Each battery lasts about two years. However, for the size and weight of the drill it is a very handy tool and powerful tool. I will continue to purchase batteries for the drill if they remain available. They are getting a little hard to find.
Pros. Light weight and powerful. Easy to get into tight spaces.
Cons: Battery life seems short (a common complaint on battery operated equipment - computers, tools, etc), and when a Li-Po quits, it just quits Manufacturers (all) keep changing designs and replacements become hard to fine. (Planned obsolescence to get you to but new equipment).
Amazon was the cheapest place I found, delivery was quick and the product is a perfect match for my drill. Only fault with this product is that any battery made for it has only a 18 month life from date of manufacture. This isn't Amazon's issue just the way Li-Ion devices work. Till it dies it's great, light, holds a charge, does a ton of work between charges.
I bought this battery as an extra for long projects.It was an exact duplicate. It preformed exactly as the original. I received it quickly and in perfect condition, and ready to use. I would have given it 5 stars except it is hard to remove as is the original. Even electrical lubracant did not help.