Armor pack heals for two seconds and if you add packs on top of each other they stack, so if you triple pack someone they get healed for six seconds with them.

How much healing does Brigitte do 2021?

Time to Heal:

110 (HP) 30 meters. 3 charges. 55 Healing Per Seconds over 2 seconds, 2 seconds added per pack used.

How does Brigitte healing work?

Repair Pack: When activated, Brigitte will throw a repair pack toward the targeted ally. When it contacts the target, it will heal a large amount of health over 2 seconds.