So I have the rx 300 and a tfv12 I want to be able to vape between 150 and 270 sometimes which batteries should I get I have those new Sony's cv5 or something is that OK ?
Use only high-rate cells such as: Samsung 25R or 30Q, LG HE2, HG2, HD2C; or authentic (make sure, there's a TON of fakes) Sony VTC4, VTC5 or VTC6 cells. Never use rewraps from the likes of Efest or Efan, trustfire or anything with fire in the name.
As he said above me, anything with fire in the name will cause a fire, go with sony vtc5, or vtc4s, i usually dont trust a battery that says anything above 35 amps