The Grip Battery Case

Slim, secure, and customizable — this was one of my first 3D‑printed battery case designs, refined for everyday use. The low‑profile body includes finger notches for a comfortable, confident grip, while a magnetic sliding top keeps your cells locked in place. Available for dual 18650 (26 × 62 × 74 mm) or dual 21700 (31 × 69 × 81 mm).

Personalize it: choose any color for the whole case or mix-and-match body and door colors to make it pop. Add your color choices in the notes at checkout.

Features:
Slim, ergonomic profile with finger notches
Magnetic sliding top for secure, easy access
Fits dual 18650 or dual 21700 batteries (sizes above)
Fully customizable colors