Replacement battery for EK-168G. Specifications: 1800mAh, 3.7V, Li-ion. Compatible with: EK-168G, EK-268G, EK-468G, Aeon A360 Pulse Oximeter. Replaces: Fukuda FL-1B, Aeon BL-10C. Fukuda replacement battery designed for Equipment/Survey/Test Charger devices. Manufactured to exact OEM specifications.