How I rebuilt some DeWalt batteries for a quarter of the cost of replacing them : r/DIY
DEWALT 18-Volt 2-Pack 2.4 Amp-Hour; 2.4 Amp-Hour Nickel Cadmium (Nicd) Power Tool Battery Kit in the Power Tool Batteries & Chargers department at Lowes.com
Dewalt 36V DC9360 and DCB361 battery pack rebuild cells, original Dewalt batteries out of the case, Dewalt 36 volt battery pack repair
Seilylanka For SNAP-ON18V 3000mAh Battery Pack Ni MH CTB4185 CTB4187 REBUILD KIT - - Amazon.com
How To Rebuild Your Old Rechargeable Battery Packs with new ones. CHEAP! - YouTube
DEWALT 20-Volt 2-Pack 6 Amp-Hour; 6 Amp-Hour Lithium Power Tool Battery Kit in the Power Tool Batteries & Chargers department at Lowes.com