Ridgid (2) 18-Volt X4 Hyper Lithium-Ion Battery (Bulk Packaged)

Not a bad price on a couple of standard Lithium-ion Ridgid Batteries.  77.99 for two.  It is Amazons Choice by the way.

To keep your Ridgid power tools charged, you need to use Ridgid batteries. This compact model, the AC840085, is a 1.5 amp hour battery that will keep your tools charged while keeping their weight to a minimum for extensive light or heavy duty tasks. It can run in extremely cold temperatures, as low as -4 degrees Fahrenheit (-20 degrees Celsius). Simply plug it into the tool, run it lightly for a few minutes, and then the battery should be warm enough for your regular tasks. On top of a light weight and compact size, the battery boasts a free-standing base, a feature that will help you keep your tools upright. This is great for keeping them in storage, or, if you’re working with a work light, letting you work with both hands. From diy applications to professional jobs, this Ridgid battery will help you do what you need to do the right way. This item is removed from retail packaging for shipping purposes (Bulk Packaged) and will arrive in a generic box.

Click Here to Buy from Amazon