MaximalPower Power Tool Replacement Battery for PANASONIC 12V EY9001, EY9005B, EY9006B, EY9101, EY9106, EY9200 Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty. Replaces the OEM battery part numbers: Panasonic # EY9001, EY9005B, EY9006B, EY9101, EY9106, EY9200, EY9201 Battery Type: Ni-Cd. Capacity: 12V 2000mAh (Will NOT affect battery compatibility) Integrated microchip prevents overcharging and lengthens battery life! 100% Compatible with original manufacturer equipment.