Olight 217C50 21700 Battery for M2R Pro, Warrior X Pro, Odin
Olight Perun 2 2500 Lumens Multi-Functional Vertical handheld Flashlight, MCC Rechargeable 21700 Headlamp with Headband (H2R Upgrade) - Walmart.com
Olight Baton 3 Pro Max 21700 Rechargeable Neutral White LED Pocket Flashlight | eBay
New Olight ORB-217C50 21700 5000mAh Rechargeable Battery - AliExpress
OLIGHT 5000mAH Customized Rechargeable Battery (217C50) Seeker 2/3, Seeker 2/3/4 Pro, Warrior X Pro, Freyr, and Odin Flashlights, with Battery Organizer : Tools & Home Improvement - Amazon.com
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
Review] Olight Perun 2 - 21700 Cool White 2500 Lumens Proximity Sensor Headlamp | Candle Power Flashlight Forum
Olight Seeker 3 review | 21700 EDC flashlight with 3,500 lumens | 1Lumen.com