Give Lena's token is an objective in the Side Quest, Kill Killavolt in Borderlands 3
Go to Lectra City
Enter battle royale
Meet up with Moxxi
Collect Trudy's token
Collect Jenny's token
Collect Lena's token
Collect batteries 0/3
Head to Moxxi's
Give batteries to Moxxi
Take booby-trapped token from Moxxi
Head to the Killarena
Attend token ceremony
Give Trudy's token
Give Jenny's token
Give Lena's Token
Give boody-trapped token
Kill Killavolt
Collect Killavolt's charge pack
Mount Killavolt's charge pack
Talk to Moxxi