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No, the OLIGHT OSIGHT SE 2MOA Dot & 32MOA Circle optic does not use a rechargeable battery. It is specifically designed with a side-loading tray that uses a standard, field-replaceable CR1620 battery.Here are the key details regarding its power and battery setup:Battery Life: Provides up to 75,000 hours of runtime on the lowest daytime setting (dot-only mode).Side-Loading Tray: Allows you to swap out the battery in seconds without needing to unmount the optic or re-zero your firearm.Battery Alerts: If the voltage drops below 2.2V, the reticle will blink three times every minute to indicate it's time to change the battery.

Yes. The OLIGHT Osight S / Osight SE line differs depending on the model: The Osight S 2 MOA Dot & 32 MOA Circle uses Olight's magnetic rechargeable charging cover. The optic itself has an internal rechargeable battery, and the included charging cover recharges it magnetically. The cover is USB-C rechargeable and displays the battery status of both the cover and the optic. The Osight SE is the version with a replaceable CR1620 battery, not the magnetic charging cover.