How to Fix if Vacuuming robot after full charge show Battery is Low. - YouTube
Neato Botvac D75 Troubleshooting - iFixit
My Sony Trinitron KV-5300 manufactured in October 1985 that I got for $8 at a garage sale still has a 1.5 Ah most-likely Ni-Cd battery that runs for 42 minutes when charged
Amazon.com: Neato Robotics Original Replacement Parts – Hi-Capacity Li-Ion Battery Pack – Compatible with Neato Botvac, Connected, D7, D6, D5, D4, D3 Robot Vacuums. 945-0225 , Black : Home & Kitchen