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Olight Perun 2 2500 Lumens Multi-Functional Vertical handheld Flashlight, MCC Rechargeable 21700 Headlamp with Headband (H2R Upgrade) - Walmart.com
![21700 Tactical Flashlight Comparison (Sofirn vs Nitecore vs ACEBEAM vs IMALENT vs Wuben vs Olight) - YouTube 21700 Tactical Flashlight Comparison (Sofirn vs Nitecore vs ACEBEAM vs IMALENT vs Wuben vs Olight) - YouTube](https://i.ytimg.com/vi/AfktIakGRSU/maxresdefault.jpg)
21700 Tactical Flashlight Comparison (Sofirn vs Nitecore vs ACEBEAM vs IMALENT vs Wuben vs Olight) - YouTube
![My XTAR X4 Extended is able to charge an Olight 18650 (not too surprised). However, it is somehow also able to charge the Olight 21700 despite the plastic ring around the positive My XTAR X4 Extended is able to charge an Olight 18650 (not too surprised). However, it is somehow also able to charge the Olight 21700 despite the plastic ring around the positive](https://preview.redd.it/numd71utv5o71.jpg?width=640&crop=smart&auto=webp&s=187455d3878be0e245a55baaf3cb13355c89e9fe)
My XTAR X4 Extended is able to charge an Olight 18650 (not too surprised). However, it is somehow also able to charge the Olight 21700 despite the plastic ring around the positive
![Olight Warrior X Pro Tactical LED Flashlight, Black, 2250 Max Lumens (1 x 21700) - KnifeCenter - Warrior X Pro Black Olight Warrior X Pro Tactical LED Flashlight, Black, 2250 Max Lumens (1 x 21700) - KnifeCenter - Warrior X Pro Black](https://pics.knifecenter.com/knifecenter/olight/images/OLWARRIORXPRO_01.jpg)