Almost all robot vacuums just tell only mAh without V on specsheet. It's useless but it seems that 14.4V is de facto standard. I wonder some crap manufacturer m

Almost all robot vacuums just tell only mAh without V on specsheet. It's useless but it seems that 14.4V is de facto standard. I wonder some crap manufacturer may tell only mAh meanwhile using 7.2V battery.