Split second lipo short !

[Dandare]

I'm so annoyed at myself, lol

Bought 2 new hard case 5000Mah 40c stick packs today, whilst connecting one to my charger i stupidly connected the charge/balance lead to the battery 1st, then before i'd connected the other end into the charger allowed the lead's + & - to touch, it was a fraction of a second but i still heard it. No other symptoms, no heat, smoke etc. I decided to charge it up whilst keeping a watchful eye, it was 7.7v when i started (from the shop) & it finished at 8.41v. No swelling or indication of damage.

Have i got away with it or is it now doomed ?