chemicalcopout! Welcome to ECF and the V4L sub forum. I am BHam, the Social Media Community manager.
The eGO Mega Carts should last for 3-4 full refills. That is about 15-20mLs of e-liquid or half a bottle. The Mega Cart needs (absolutely needs) to be saturate with e-liquid. To fill it up, turn the carto slightly on it's side and pour the e-liquid into the polyfill. You'll also want to top it off every 5-6 hours of vaping time. Since there is so much polyfill, remember it is important to keep it saturated or you will burn it.
Sorry for the whole preface, but you'll want to change the carto when the polyfill turns brown and progressively to black. Signs that you need a new Mega Cart:
- Getting a burnt taste after filling
- Brown black polyfill
- Leaks coming from the bottom of the cart.
I hope this helps

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