I think I've fixed the Nvidia shield controller issue with ghost movements by soldering two 1.2MOhm resistors in parallel with left/right potentiometer. Any attempt by anyone to do it too is at
1800mAh Battery For Nvidia Shield Game Controller,P2920,P/N:HRLR15/51,4.32Wh | eBay
Replace battery on the 2017 shield controller : r/ShieldAndroidTV
How to replace Shield Android TV remote batteries | Android Central
Game Console Battery 2.4V/1800mAh HFR 50AAJY1900x2(B),HRLR15/51 for Nvidia P2920,Shield TV Game Controller| | - AliExpress
Nvidia Shield Controller Battery | Game Console Battery | Game Controller | P2920 Battery - Digital Batteries - Aliexpress
Games Console Battery for Nvidia P2920, Shield Game Controller, Shield TV Game Controller - 1800mAh, 2.4V | 888203397
Amazon.com: Velrgt Ideal for Nvidia Shield Game Controller, Shield TV Game Controller, P2920 Replacement and Spare Manufactured Batteries, Perfectly Compatible with HFR-50AAJY1900x2(B), HRLR15/51 : Video Games
Replacement Battery for Nvidia Shield Game Controller,Shield TV Game Controller,P2920,fit Part no HFR-50AAJY1900x2(B),HRLR15/51,1800mAh/4.32Wh/2.4V : Amazon.ca: Video Games
HFR-50AAJY1900x2(B), HRLR15/51 Battery for Nvidia P2920 Shield TV Game Controller, 1800mAh - sold by smavco - Walmart.com
Replacing Shield Controller's internal batteries with an external 2xAA battery pack : r/ShieldAndroidTV