These Class G Hardhats Can Surprisingly Withstand Up To 2,200 Volts Safely bejo 6909 Share These Class G Hardhats Can Surprisingly Withstand Up To 2,200 Volts Safely Snapklik.com : UNINOVA Safety Hard Hat - ANSI Z891 Approved Helmet ... Can the AeroScout (safely) use 4S 2200 mAH batteries? I just tried it ... Read also: Guide Explaining How To Inspect Your Ibc Bunding Pallet Today