If you have Ridgid tools, you need Ridgid batteries, and you need to keep them charged. If you want to get them charged properly, you need the R86092. It's a replacement for the previous model, the R86091, and it displays a great improvement in charging power. It can get some of the 18V batteries in the Ridgid lineup charged in as little as a half an hour. With onboard mounting brackets, you can keep it stored around where you work. Whether it's your basement or garage, there can be a place to tuck this charger away. The charger will also notify you whether the batteries you have are defective or not. Simply watch out for the blinking green or red light to let you know what you need to do! You want the best for your batteries. Make the upgrade to the R86092.