Something in my bike (USB Charger, Hella Socket itself) has made a short circuit leading to deep discharge of Lead-Acid battery.
Battery was down to 5.2V for time counted in minutes. I've disconnected load sources and recharged the battery using recovery function.
Now battery keeps at quite rock-solid 12.6-12.4V, but I'm wondering how much damage this undervoltage could made? Was there enough time to create thick Sulfur coating on electrodes?