This is what I've been pulling for the Sony VTC5's:
Sony VTC5 battery 30A High drain US18650VTC5 2600mAh
1. Nominal capacity:2600mAh
2. Rated capacity: 2500mAh
3. Nominal voltage: 3.6V
4. Charge voltage: 4.20±0.05V
5. Cut-off voltage: 2.5V
6. Max.charge voltage: 4.25V
7. Continuous maximum charge current: 4A
8. Continuous plus charge current: 12A
9. Continuous maximum discharge current: 30A
10. Maximum discharge current: 60A
10. Weight: 44.3g Average
11. Dimision:
Diameter: Max. 18.35mm
Length: Max. 65.20mm
So the maximum here would be 60amp's in short bursts, but not a continuous burst, though no definite on what the actual maximum is. This based on the fact that the VTC4 can burst higher than 60amps, though I'd imagine the VTC5 falls into pretty much the same limits since the only major difference is the higher mah rating.
And then for the VTC4's, see the attached image. This is a label from Sony, from what everyone has said, which is for the VTC4's specifically. I would imagine the VTC5's can do the same.
From this image, it would seem the VTC4 can handle a 40amp burst for 80 seconds without an issue, a 50amp at 40 seconds and a 60amp at 30 seconds. That's why I ask about the actual labeling to confirm it's not mislabeled as many batteries are. If it can truly only handle 40amp at Max Discharge Current, and that's the real label, it's actually worse than a VTC4/VTC5 would be.
If the 40amp limit is Maximum Continuous Discharge, then it'd be nice to know what the real Max Discharge Current is, but as it stands, I'd like more info before spending money on a new and unknown battery at this point.