Board Thread:General Nerf discussion/@comment-38684270-20191119032812/@comment-27306930-20191120014812

Okay, legal disclaimer: ''No one associated with Fandom or the Nerf Wiki is a chemist, battery manufacturer, or product safety expert. The following is only my opinion''.

NiteCore is one of the best brands on the market. That D4 is the charger I personally use. But those batteries are junk for the upgrade you're planning. They're just 1.5 volt nickel metal hydride batteries, basically the same as Ni-Cads. In many respects they're worse than alkalines in Nerf blasters.

What you need to find is 3.7 volt 14500 IMR batteries. For some reason there's a shortage of them on Amazon right now. I bought on eBay last week for a decent price. UltraFire is a pretty good name, and 1800mAh is pretty respectable from a current/wattage standpoint. And I happen to know from experience they have Circuit Protection built-in.

So YES on the NiteCore D4, but NO on those crummy batteries.