A snug fit in a hardtail fatbike frame
The Good: Best 18650 Cells on the market, currently, that have a lot of capacity (Amp-hours) and also good discharge current output. The battery looks great, and I can JUST BARELY squeeze it into a Mongoose Vinson Fat Bike Frame. The higher voltage (as compared to the 60V batteries of similar shape and current rating) is a nice bonus, especially for use with a slower winding of motor that doesn't need quite as much current. The pack will also take a 15A charge rate from my Home-built Mean Well charger. Something I had trouble with, on "the other guy's" Battery's BMS.
The bad (Reason for loss of a star): at 5 cells in Parallel, the GA cells have to work really hard to pump out those 70A of maximum current. That's 14A per cell or "4C" for a cell that is most often listed as a 10A/3C max output cell.
Since this a "Max" rating, and not a "continuous" rating, It's probably not that big of a deal. Most of the time, I'm only pulling 30A-40A, which this pack does with ease.
Overall Impressions: For it's size, shape, weight and Energy Density, I'd have to say it is the best 18650-based Lithium battery available.