Premium OEM Stamping Contact Shrapnel for AA/18650 Batteries

High-precision stainless steel construction ensures superior conductivity and corrosion resistance. CNC-stamped for consistent thickness (0.15mm±0.01) with laser-polished edges to prevent short circuits.

Optimized spring tension (3.5N±0.2) guarantees secure battery retention in high-vibration environments like medical devices and industrial remotes. Gold-plated contact points reduce impedance by 40% vs standard brass.

Compatible with AA/AAA/18650 battery compartments. Passed 50,000 insertion cycles testing. Ideal for IoT devices, automotive key fobs, and handheld medical equipment requiring reliable power connections.

Custom alloy blend (304 steel + 0.8% carbon) prevents fatigue deformation. RoHS/REACH certified. Sold in bulk quantities (MOQ 10,000pcs) with 30% cost advantage over retail packaging.