VAPO RM 3.0 batteries are built to the same specifications Samsung 30Q batteries. VAPO RM3.0 batteries include positive and negative indication to avoid confusion and have battery safety information on the side so you can always use your batteries safely! The VAPO RM series are designed for regulated mods and the 3.0correlates to the capacity, this battery is 3000mah - high capacity battery. These batteries are rated at 15A so are not suitable for use in mechanical mods- we recommend the VTC4 for mechanical mods (mods that do not allow the user to adjust the watts).
SONY VCT4 batteries are manufactured by Sony Energy, which was purchased by Murata in 2017. These are flat top batteries and have a 20A Maximum Continuous with 80deg C cutoff, 30A Maximum Continuous with 100deg C cutoff.