Sony VTC7 (VC7) 30A 3500 mah - 8 Amp max / 15 Amp Continuous

Sony VC7 Battery Specs:

• Nominal Capacity: 3500mAh
• Nominal Voltage: 3.6V/3.7V
• Full charge Voltage: 4.2V 
• Internal Impedance 23 mΩ measured by AC 1kHz
• Diameter 18.45mm max +/- 0.05mm
• Length 65mm max +/- 0.05mm
• Weight: 47.1 g Average
• Positive terminal: Flat top
• Color: Green
• Battery Type / shape: 18650 / Cylindrical
• Made in Japan
• Manufacturer: Sony Energy
• Intended use: Power Battery packs

This is not the “VTC7” as there is no such battery. This is a great performing high capacity battery for vaping at 5A/15W (per battery) or less. It is up there with the other two best performing high capacity 18650’s, the Sanyo/Panasonic NCR18650GA and the LG MJ1.

This cell, and any of the other over-3000mAh 18650’s, can be used at up to their ratings but their high internal resistance means there is a lot of voltage sag. They run a lot more efficiently down near 5A or less. Above 5A-7A the 3000mAh 15A-20A cell’s like the 30Q, VTC6, and HG2 become the better choice since they are a lot more efficient.

At 5A down to 3.2V the VC7 delivered 7.6Wh of energy. The MJ1 delivered 7.7Wh, essentially the same, and the NCR18650GA delivered 8.0Wh. The capacities of the two cells I tested were 3427mAh and 3473mAh, meeting Sony’s minimum capacity rating.

The NCR18650GA is still my number one choice for low power vaping or flashlight/powerbank use, but this cell is in the top three.

Sony rates this cell at 8A continuous and 3400mAh minimum, 3500mAh typical.

Battery Specification