1It is used to repair and assemble batteries pack,2only for people who are familiar with battery performance and have practical experience in battery assembly.3Replacement BAT610 18V Lithium-Ion Battery PCB Circuit Board For Boschs BAT609 BAT609G BAT618 BAT618G Li-ion Battery Replace Part Number BAT609 BAT609G BAT618 BAT618Gcolour: greenMaterial: PCBsize: 43x75x07cmPackage Contents: 1 * Protection BoardNote: This product is Charging Protection Circuit Board without battery core.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.