I’m not really a fan of Panasonic’s 1-3h chargers, though I love the little RYG LED indicators. Only way I’ll use that is with a USB fan pointed at it, or you can do a trick where you put three batteries in (like slots 1,2,4) and then remove the middle one after it starts. Then you get the 3h rate in addition to sufficient spacing between cells to prevent overheating.
The BQ-CC17 7 hour charger is golden. Probably make cells last longer than anything else.
The Opus C3100 is a complete no-go for NiMH as it trickle charges at a considerable rate. If it’s 20mA like the manual says, the displays indicate considerably more (30-50mA). The C2000/2400 is great, though 90% of the time I just use the SkyRC MC3000.
Worse than the BQ-CC55 was the SkyRC NC1500. I wanted to like that one. So cute, but it’d go over 50C on a regular basis. Not sure how they did such a bad job on that.
The NC2200 is also cute in its own way. Unless there’s something quite wrong with it, I have to have one.