BTI AJ359AA-BTI Premium 8 Cell 3600 mAh 14.4 V Replacement Battery

The KU531AA-BTI Premium 6 Cell 5200 mAh 10.8 V Replacement Battery from BTI provides the user additional power when needed. BTI stands behind their products as they provide the highest quality products to not only meet but exceed the standards set in place by the manufacturer. With an 18 month warranty you can rest assured that if the battery falls below those quality standards BTI will stand behind their product.