Wurkkos 2PCS 20350 Battery 3.7V 1400Mah 10C High Drain Discharge for HD20/TS21 Short Tube Rechargeable Battery with a Flashlight|Portable Lighting Accessories| - AliExpress
2 pc 20350 BATTERY LI-MN 1400mAh 3.7v HIGH DRAIN IJ yellow/black | eBay
Amutorch E3Q review | Portable 20350 EDC flashlight with 3,000 lumens
ER14505 Batteries 2 Pack, 3.6V Lthium Battery 2400mAh AA 3.6V ER14505 Battery Non-Rechargeable AA Size Battery Single-Use Battery for Water Electricity Meter Security Alarm System Sensors