For anyone interested in real, data-driven battery testing, glad to share a great resource from a professional German tech blogger who recently reviewed several XTAR battery models. There are detailed measurements of batteries' capacity, discharge curves, and performance under different loads online:
XTAR 14500 1200mAh: https://akkutests.de/test-xtar-14500-1200.html
XTAR 16340 900mAh USB-C: https://akkutests.de/test-xtar-16340-900-mit-usbc.html
XTAR 18650 4000mAh: https://akkutests.de/test-xtar-18650-4000.html
XTAR AA NiMH 2600mAh: https://akkutests.de/test-xtar-aa-2025-2600.html
XTAR 14500 1200mAh: https://akkutests.de/test-xtar-14500-1200.html
XTAR 16340 900mAh USB-C: https://akkutests.de/test-xtar-16340-900-mit-usbc.html
XTAR 18650 4000mAh: https://akkutests.de/test-xtar-18650-4000.html
XTAR AA NiMH 2600mAh: https://akkutests.de/test-xtar-aa-2025-2600.html