Nyko’s Power Grip 3DS. We talked about this battery and grip back in June, but the accessory is shipping to stores. Unlike the company’s Power Pak +, which doubled the system’s battery life, this one claims to triple it.

It also slips on instead of requiring installation, and charges with the stock 3DS power adapter — due to the added bulk/grip, it won’t fit in the dock, naturally.

The Power Grip is a bit expensive at $29.99, but if you’re looking for a cheap battery extender, the original Power Pak + is on sale right now for $13.26 ($20 with charger).

I’m sure the Nyko product that’s on all our minds, though, is a modified Circle Pad Pro add-on with a built in battery pack — I can’t believe Nintendo didn’t make this itself!

Buy: Nintendo 3DS console (Flame Red, Black, & Blue)

Find: Nintendo DS/3DS release dates, discounts, & more

See also: More accessories

[Images via Engadget]