Olight Warrior 3S Tactical Flashlight
The Olight Warrior 3S Tactical Flashlight (2,300 lumens) is a high-performance, rechargeable tactical light designed for outdoor and duty use. It combines extreme output, thermal protection, and a rugged aluminum body with long runtimes. Price: 78.49 USD.
Battery type
The Warrior 3S uses a single 21700 lithium‑ion rechargeable cell. Olight supplies the flashlight with a high‑capacity 21700 cell built for the light and supports onboard magnetic USB charging.
Is the battery included?
- Yes — the flashlight is sold with the appropriate 21700 rechargeable battery installed.
- It typically ships ready to use with Olight’s recommended battery and charging solution.
Capacity and runtime
- The exact mAh rating can vary by production run, but Olight equips the Warrior 3S with a high‑capacity 21700 cell to achieve the advertised extended runtimes (the product description notes up to a 55‑day runtime in the lowest mode).
- Expect very long runtimes in low modes and shorter runtimes when using the maximum 2,300‑lumen turbo output (high output drains a 21700 cell much faster).
Charging and compatibility
- The Warrior 3S supports on‑board charging (typically via a magnetic USB cable supplied by Olight) — no external charger is required for everyday recharging.
- Replacement cells should be high‑drain protected 21700 lithium‑ion rechargeable batteries from reputable brands. If you replace the cell, use a battery with the same nominal voltage (≈3.6–3.7 V) and similar or higher capacity that is rated for high‑drain use.
- Always follow Olight’s recommendations in the user manual for compatible batteries and charging procedures.
Safety and care tips
- Use only quality 21700 rechargeable cells from reputable manufacturers or the original Olight replacement battery.
- Do not use damaged or unprotected cells. Inspect the cell and flashlight contacts regularly.
- Avoid extreme temperatures while charging or storing the battery. The Warrior 3S includes a proximity/thermal sensor to help prevent overheating at high outputs.
- Refer to Olight’s instructions for storage, charging, and battery disposal.
Replacement recommendations
- If you need a replacement, look for: “21700 rechargeable lithium‑ion cell” with high continuous discharge capability and appropriate capacity.
- Best practice: buy the official Olight replacement 21700 battery or a high‑quality third‑party 21700 from trusted brands and sellers.
Where to confirm exact battery specs
- Check the official Olight product page or user manual for the Warrior 3S for the precise battery model and mAh rating.
- Product listings from authorized dealers and the included documentation will also list the exact battery part number and charging method.
Summary
In short: the Olight Warrior 3S runs on a single 21700 lithium‑ion rechargeable battery (included). For best performance and safety, use the supplied battery and charger or an approved replacement 21700 cell and follow Olight’s instructions.









