Bostitch 20v 2.0ah Lithium Iron Battery Pack w/fuel Gauge Bostitch BCB203 20V MAX* 2Ah Lithium Ion Battery. This 20V MAX* Lithium Ion Battery has virtually no self-discharge or battery memory. That means more use between charges and a longer overall battery life. An onboard LED fuel gauge allows the user to quickly see remaining charge. Bostitch BCB203 20V MAX* 2Ah Lithium Ion Battery Features: Charges in 35 minutes or less with BOSTITCH 20V MAX* charger BCB115 LED fuel gauge to quickly see charge remaining Virtually no self-discharge or battery memory Specifications: Amp Hour: 2 Ah Capacity: 2 AH NiCad / Lithium: Lithium Ion Power Tool Type: Cordless System: 20V MAX* Watt Hours: 40 20% RESTOCKING FEES AND SHIPPING WILL BE CHARGED. IF ITEM IS FUNTIONAL OR INCOMPLETE. An Important Message Regarding USPS Tracking Numbers Due to high volume of shipments sent through USPS, Tracking numbers get recycled on occasion. This means, when you receive the notificaiton that your package has been shipped via USPS, and you try to track the status of the package, it may show your package was Delivered even though the label was just generated. Please don't panic, the solution to this issue is to wait until the Post Office scans the label, then the tracking information will update accordingly. Please let us know if you have any questions. Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!