Grumpy Old Geeks Products Flux capacitor wall charger Product Flux capacitor wall charger 2 mentions in 1 episode A Back to the Future-themed wall charger discussed by the hosts. Mentions 188: Because of Copyright! Dec 2, 2016 1:00:51 I found this ... Back to the Future flux capacitor wall charger. 1:01:25 It blocks the other outlet in the wall.