Fit and compatibility – Replacement battery compatible with Olympus Stylus 1, OM System OM-5, OM-D E-M10 Mark II, IV, 1s, III,... Long Battery Life – High-quality Lithium Ion Battery delivers reliable power, multiple charge cycles and low self-discharge for everyday use High-Capacity Power – 1000mAh capacity for efficient, long-lasting energy and stable performance Built for Reliability – Manufactured to strict quality standards for safe and consistent power delivery Smart & Cost-Effective Choice – Replace the battery to extend device life and reduce replacement costs