Uploaded February 2019 | Updated September 2026, 3 weeks ago
Overall this a good upgrade on my VC4 charger, nice features for discharging cells but a puzzling quick test feature. Obviously this is more of a feature walk-through rather than a review, I am really only interested in the discharge feature. Next up is the IDST C4 charger, it looks awesome.
You can pick the Opus BT-C3100 up in any of the major shops but here are a couple of affiliate links
Banggood £34 - banggood.com/custlink/KKGDdcZk6v
Aliexpress £25 - http://s.click.aliexpress.com/e/S9R7bOo
It turns out that 'Likes' and 'Shares' actually help the channel so, if you want to, please click the thumbs up or share the video.
I don't have a Patreon or a donate thingy, I get by fine. That said, if you are mega rich and fancy donating something I would find useful then feel free to check out my Amazon wishlist (No pressure) - amazon.co.uk/registry/wishlist/29JZFQUC2NZ8V
I put lots of my favourite products and stuff that helps me make video up on this Amazon page - amazon.com/shop/davidwatts It is one of those affiliate things.
If you want to get in contact Twitter is probably the best way @mrdavidjwatts
davidjwatts.com
Overall this a good upgrade on my VC4 charger, nice features for discharging cells but a puzzling quick test feature. Obviously this is more of a feature walk-through rather than a review, I am really only interested in the discharge feature. Next up is the IDST C4 charger, it looks awesome.
You can pick the Opus BT-C3100 up in any of the major shops but here are a couple of affiliate links
Banggood £34 - banggood.com/custlink/KKGDdcZk6v
Aliexpress £25 - http://s.click.aliexpress.com/e/S9R7bOo
It turns out that 'Likes' and 'Shares' actually help the channel so, if you want to, please click the thumbs up or share the video.
I don't have a Patreon or a donate thingy, I get by fine. That said, if you are mega rich and fancy donating something I would find useful then feel free to check out my Amazon wishlist (No pressure) - amazon.co.uk/registry/wishlist/29JZFQUC2NZ8V
I put lots of my favourite products and stuff that helps me make video up on this Amazon page - amazon.com/shop/davidwatts It is one of those affiliate things.
If you want to get in contact Twitter is probably the best way @mrdavidjwatts
davidjwatts.com


