Amazon.com

Black & Decker’s VersaPak tools are great for the homeowner, and to keep them running, you’ll want some spare batteries. Some advantages to these include their freedom from "memory," which keeps you from getting a full recharge and the fact that you’ll get at least 300 full recharges on each battery. They’ll power all the 3.6-volt VersaPak tools, including the ScumBuster and screwdrivers. Of course, once you buy a VersaPak tool, you don’t have a choice of batteries, but we’ve found these to be reliable and well able to power the 3.6-volt VersaPak line.--Kris Jensen-Van Heste ... Read more

Features

• Interchangeable batteries work with all VersaPak products
• No memory
• Can be recharged over 300 times
• Two year home use warranty

Reviews (4)

Low power for the replacement 3.6v I ordered
The new Versapak battery I recieved was weaker than the origional five year old battery I still had. One of the two origional batteries quit working and I ordered a new one. The new one delivered only about half the torque to my screw driver and did not last long even after overnight charge. Perhaps I could have just recieved a defective one. I like the B&D cordless driver and will try again to order another one.

Don't hold charge as long as expected
To those people that can not find batteries without the charger, I say you will need at least two chargers at all times. The batteries need to be in a constant state of charge while you are using the others. The shelf life of the charge is pitiful and the length of charged batteries is not anywhere near your project-required time.
On the positive side you can not find a better "versatile" cordless system and this has make it possible for me to do many projects tat would be clumsy if I needed a cord.

Versatile but weak
I've got a number of the Versapack tools including the drill, screwdriver, and mini-circular saw. For small jobs like putting some screws in or cutting thin pieces of wood, they're fine. Anything that will take more than a few minutes of use will require more batteries because they die so quickly. This line would have been a lot nicer if the batteries were more powerful. Also, it would be nice if the chargers told you when the batteries were fully charged.

Good for around the house jobs
I've got a number of versapack tools--drill, flashlight, Wizard, and multipurpose saw. I've found them useful for little short jobs around the house--light and easy to use. The problem is that the batteries run dead almost immediately, so I've ended up having to have a lot of spares charged for those occasiona when I need a tool for more than a few minutes. It's still cheaper than buying a higher end cordless, and since the tools are so light, for small jobs they are a lot nicer to use. ... Read more