The Sony VTC5 18650 2600mAh battery has a 30 Amp discharge rate. This means you can build lower resistance coils, which places less stress on the battery. This battery has a flat-top connection. This battery also has a 2600mAh rated high drain rated capacity. For your safety, please do not keep these batteries loose in your pocket and always use a suitable charger.
Never leave chargers plugged in overnight.
Keep batteries in a safe place when not in use.
Never leave batteries unattended when charging.