Board Thread:General Nerf discussion/@comment-33092097-20190925225757/@comment-30049823-20190926040858

We may never know unless someone hooks up an ammeter and voltmeter and measures the current drawn and voltage drop under load of an actual blaster, but you can download and compare the data sheets from https://www.duracell.com/en-ca/techlibrary/product-technical-data-sheets

Remember that the Optimum "more this or more that" claim is in comparison to the Copper Top, so they're not even claiming they're better batteries than Energizer, or whatever generic brand you can pick up at the dollar store.

If you want my educated guess, I'd speculate that they provide "more power" to a high-current-draw motorized device than Copper Tops do. But that's just because in my experience, Copper Tops last a long time but are utter crap in high-current-draw devices.