Description
Battery holder case for the Spice family of calculators, made with 3D printing and springs in stainless steel 304 alloy. to use 2 AAA batteries without forcing the case, as it is the case when using normal AA batteries.
Compatible with HP31E, HP32E, HP33E/C, HP34C, HP37E and HP38E/C. Uses 2 AAA batteries.
In case the AAA batteries are rechargeable, DO NOT CHARGE THE BATTERIES WITHIN THE MACHINE - use a separate charger.
Pay attention to proper polarity: see signs 3d-printed on the back of the battery holder.