7 Commodity Descriptions For product option "M12-3C" Round battery case replacement parts repair kit that can be used to assemble a new 12V battery or repair it with its components. Compatible replacement for 48-11-xxxx: 2411, 2401, 2420, 2425, 2430. For product option "M12-3C-Bottom" Replacement battery bottom replacement case shell for 12v round battery. Compatible replacement for 48-11-xxxx: 2401, 2401, 2420, 2425, 2430 For product option "M12-6C" 12V square base battery case, battery replacement repair rebuild kit. 48-11-xxxx: For 2402, 2440, 2460, 2412: broken battery parts repair / new batteries DIY with 18650 battery cells. For 2450: the center frame is not compatible, we suggest to put the 2450 cells into a our new kit to assemble a new battery. For product option "M12-Top" / "M12Top-4Pcs" / "M12Cover-Shell" This is 12v square base battery center case cover replacement part. 48-11-xxxx: Compatible with 2402, 2440, 2460, 2412. NOT compatible with 2450: We recommend assembling a new battery by inserting the battery cells into our battery replacement parts via "M12-6C". For product option "M12-9C" 9ah / 9.5ah battery case parts replacement or new battery diy.