Opus BT-C3100 Charger – Test & Review | 18650, 21700, Li-Ion, NiMH & More!
Charging, discharging, capacity measurement, internal resistance testing, and evaluating Li-Ion cells.
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https://www.youtube.com/@pascalfiabane/videosIn this video, I test the Opus BT-C3100 V2.2 18650 battery charger – an intelligent battery charger for 18650, 21700, 26650, 14500, 16340, AA, AAA, cell, and many other battery types!
The Opus is ideal for charging and measuring the capacity of Li-Ion (3.7V), NiMH, and NiCd batteries. It allows for charging, discharging, and testing of 18650, 21700, 26650, and other batteries.
18650 lithium ion battery charger
💡 Features & Functions:
✅ Supports charging and testing of 18650, 21700, 26650, 14500, 16340, AA, AAA & more battery cells
✅ Li-Ion, NiMH, NiCd charger with capacity test
✅ Four independent charging slots for 18650, 21700, 26650, etc.
✅ Adjustable charging current: 200mA – 2000mA for different batteries
✅ Capacity measurement, internal resistance test & refresh mode for 18650, 21700, 26650 cells
✅ Protection against overcharging, overheating & short circuits
📌 Perfect for:
🔹 18650, 21700, 26650 batteries in flashlights & e-cigarettes
🔹 DIY power banks & battery projects with 18650, 21700 cells
🔹 Building your own batteries, RC modeling & hobby projects using 18650, 21700, 26650 cells
🔹 Battery capacity measurement / internal resistance testing
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*Chapters*
00:00 Functions + Capacity Test
05:58 Measuring Internal Resistance
07:57 User Manual
08:08 Hidden Switch
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