Firmware may vary. The firmware version is displayed when the device is turned on.
Information in model description is for reference purposes. Before buying always check characteristics and configuration of product with online store manager Catalog Opus 2024 - new products, best sales and most actual models Opus.
Video reviews
Opus BT-C3100 only 2 slots are charging
26 October 20202 458 view
How to fix an Opus BT-C3100 18650 Battery Charger with broken springs, step by step, the easy way
23 November 2020830 view
Is My Opus BT-C3100 Destroying My Batteries?
14 May 2019371 view
Dismantling Laptop Batteries for 18650's + Testing with OPUS BT-C3100 Charger
19 October 2018722 view
MegaCell Charger Consistency/Accuracy Testing vs Opus BT-C3100 & Thoughts
20 March 202016 991 view
Opus BT-C3100 V2.2 4Slots LCD Display Battery Charger Banggood.com review
10 February 2018756 view
Opus BT-C3100 "Modification" 18650 VIDEO 4
21 November 2021339 view
2800mAh?? ETSAIR 14500 Li-ion AA 3.7v Battery Capacity Test with Opus BT-C3100
26 March 20213 591 view
Opus BT-C3100 v2.2 Review It is an Awesome Charger! - 648
12 February 201817 026 view
⚡️DIY Powerwall Project - ep4 - Opus BT-C3100 Fan Mod & Test (2019)
9 February 20198 020 view
BT-C3100 Battery Charger Pt 2
12 March 201435 141 view
18650 - Part 5 - Opus BT c3100 v2.2 charger & discharger for li-ion battery cells
17 September 201719 560 view
Opus BT - C3100 (V2.2) Smart Battery Charger: Review & Test
6 June 201780 160 view
BT-C3100 Battery Charger Pt 1
12 March 201467 774 view
BT-C3100 charger - brief demonstration with annotations
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