received within the specified time. already tested, and that changes the low cost battery that can find cheap, but do not last! the adjustable voltage is a plus! Kanger especially on a tank T2, no burnt taste problem as another battery when one arrives end of tank. of + adjustable tension allows to prolong the resistance.
after a month of use, I became disillusioned because over time the battery charge not yours and it takes about 6 hours to recharge !! therefore I strongly advise against this.
