Which batteries exploded?Was It Samsung...To be rehtorical they exploded due to decreasing the charge time...This was a mistake to them by not understanding the consequences.The battery was vigorously tested under approved testing then some-one real clever decided to improve the the charge time.Cabalt is used to stabilise the battery and charge rate but some one clever thought they were more clever.Big mistake...Any how this is the vigour that your non exploding supercaps will go thru...