I have a Gyrfalcon All-44 along with a few others.
The All-44 is my in-use charger. Why?
First it loads 21700 batteries without forcing them in. All others I have 21700s don't really fit.
It charges every bay at a different rate if you want, or all at the same rate and will do 2A on all bays at once. Some have higher charging only on 1 or 2 bays.
It is accurate. I have put my DMM on batteries and found some chargers that said 4.20 while the actual voltage was 4.14-4.17. While small difference, there were two that over charged the batteries to 4.25V
It was reasonably inexpensive.
I may pick up another, but it'll wait awhile. Chargers aren't going to be scarce.
The All-44 is my in-use charger. Why?
First it loads 21700 batteries without forcing them in. All others I have 21700s don't really fit.
It charges every bay at a different rate if you want, or all at the same rate and will do 2A on all bays at once. Some have higher charging only on 1 or 2 bays.
It is accurate. I have put my DMM on batteries and found some chargers that said 4.20 while the actual voltage was 4.14-4.17. While small difference, there were two that over charged the batteries to 4.25V
It was reasonably inexpensive.
I may pick up another, but it'll wait awhile. Chargers aren't going to be scarce.