(adsbygoogle = window.adsbygoogle || []).push({}); Keep in mind that these times were gotten without getting any kills or using overdrive.

Ruin:
Gravity Spikes- 4 minutes 30 seconds
Overdrive- 2 minutes 18 seconds

Outrider:
Sparrow- 4 minutes 30 seconds
Vision Pulse- 4 minutes

Prophet:
Tempest- 4 minutes 30 seconds
Glitch- 2 minutes 18 seconds

Battery:
War Machine- 4 minutes 30 seconds
Kinetic Armor- 4 minutes

Seraph:
Annihilator- 5 minutes
Combat Focus- 4 minutes 30 seconds

Nomad:
H.I.V.E.- 5 minutes
Rejack- 2 minutes 55 seconds

Reaper:
Scythe- 5 minutes
Psychosis- 2 minutes 18 seconds

Spectre:
Ripper- 1 minute 42 seconds
Active Camo- 3 minutes 25 seconds

Firebreak:
Purifier- 5 minutes
Heat Wave- 2 minutes 55 seconds


Credit goes to the YouTuber, Blame Truth, for this contribution to the community.

Charge times depend on the gamemode :p

Dom has faster charge time appears to be two groups
Team death match modes and objective modes

I can't remember which one but was able to get one up to 8 mins

Thank you for this is helpful!