Howdy, iam Stephanie Credi, So long!
How Long Does A Stealth Boy Last Fallout 3? [Solved]
The effect lasts for one in-game hour or 2 real-time minutes. If using an additional Stealth Boy when a previous one is still active, the duration of the stealth effect does not replenish - it “stacks”, so the effect will last two in-game hours.
Fallout 3 Wanderer Edition #3 - Stealth Boy
All according to plan…
100 Sneak + Stealth Boy = Balanced (Fallout 3 & New Vegas)
Fallout 3
Fallout 3 Pacifism : Stealth Boy to the Rescue
Another video from my attempt to play