Do you know what mah your existing battery is? If it's the little stubby ego battery it'll be 650mah, and if it's the slightly longer one it'll be 900mah. You could always pick up a couple more of the same batts you have now and just swap them out when they run dry (I carry a little case with spare batts and liquid at all times), but you could use this as an opportunity to try out a cheap variable voltage battery too.
Do you vape at a desk/pc/laptop? A usb passthrough battery would mean you could vape and charge at the same time if so.
Alternatively, you could pick up a big battery mod, but they are a bit chunkier.
The itaste gets good feedback and has variable voltage and usb passthrough capabilities, but if you up the voltage (which you will when you see what it can do!) then you may find that battery life is still an issue. The ego twist is a similar product along the same aesthetic design as your existing ego battery, but with the added function of variable voltage at a low price.
Do you vape at a desk/pc/laptop? A usb passthrough battery would mean you could vape and charge at the same time if so.
Alternatively, you could pick up a big battery mod, but they are a bit chunkier.
The itaste gets good feedback and has variable voltage and usb passthrough capabilities, but if you up the voltage (which you will when you see what it can do!) then you may find that battery life is still an issue. The ego twist is a similar product along the same aesthetic design as your existing ego battery, but with the added function of variable voltage at a low price.