The Twister 30W mod has a battery capacity of 1400mAh, which is more than enough to keep you vaping a day or two even at 30W.
Wotofo have recently acquired the vape brand OFRF and re released the Nexmesh Sub Ohm Tank. The Nexmesh coils have a world first triple density conical mesh design which provides an abundance of flavour and clouds.
There are three different types of coils compatible with the Screen tank. Each coil is packed with a blend of cotton and wood pulp, it doesn’t say what material the coil is but I would assume it is kanthal.