If you want something similar to an ego (has both 510 and ego threading, like the ego battery) and want much more battery power to get you through the day, maybe an MVP 2 might be better for you and a slight step up.
Differences would be it's a box style mod, 2600mah built in battery, can use it as a pass through (charge while you vape via usb ), does Variable Voltage and Variable Wattage, can use it as a battery bank and charge other items on the go in a pinch.
But also it is a bit more pricey. 101vape.com has it for $39.99 with 3 bucks shipping... it feels much better in the hand than you think. And it will only go 6 to 11 Watts and or 3.3 to 5 volts which for new vapors is really not bad at all. Battery lasts most new vapors like 2 days or a bit less if you chain vape.
When I first started I used to use joyetech ego c twists (genuine ones) and they would die on me all the time (1000mah variety) so frustrating. I actually have an MVP 2 instead of replacing my old ego batts (both lasted about a year or so with heavy use).
With a fully charged MVP 2 you will not run out of power from the start till the end of the day when you get home. I'm using it as a backup to a cana dna30 clone which you can also grab from 101vape, but all in with batteries (sony vct5's) and a decent charger you will be over $120 easy. That might be a bit overkill for you right now. Good luck and vape on.