420EDC sells VTC6 for the Milaana and I bought four of them. Seemed to work real fine. I note this about discharge capacity:
"Discharge: 15A Max Continuous or 30A Max Continuous with 80C temperature cutoff"
Not sure exactly what this means.
From another site, however, I find these specs which are indeed different:
VTC6 Battery Specs:
- Nominal Capacity: 3120mAh
- Rated Capacity: 3000mAh
- Max Continuous Discharge Current for temp. up to 80 degrees Celsius: 30A
- Max Continuous Discharge Current: 20A
- Nominal Voltage: 3.6V/3.7V
- Full charge Voltage: 4.2V
- Internal Impedance 13 mΩ measured by AC 1kHz
- Diameter 18.45mm max +/- 0.05mm
- Length 65mm max +/- 0.05mm
- Weight: 47 g Average
- Positive terminal: Flat top
- Color: Green
- Battery Type / shape: 18650 / Cylindrical
- Made in Japan
- Manufacturer: Sony Energy
- Intended use: Power Battery packs