Dr Richard Nock on Twitter: "Rebuilt a Tyco 6v battery pack with a friend last night. 24 year old NiCd cells had leaked and rotted one of the contacts. Replaced with 2.3Ah
Make your own RC Car Battery Pack or Repair NIKKO Ni-Cd 6.0V-620mAh - YouTube
Amazon.com: 6.0v 1800mah SM2P Rechargeable NI-Cd Battery with 6.0V SM2P USB Cable for RC Car Truck Toys : Toys & Games
TYCO 6.0V Jet Turbo NiCd Battery Pack & Charger for sale online | eBay