So far, I have bought 4 Twists, and have broke 3. Totally my fault, I keep dropping them, breaking the buttons. I'm looking for yet another replacement. Not sure if I should spend the $25 on a new 1000mah twist, or try something similar that's compatible with my tanks and cartos that I already have. Any suggestions? Do you know who might have the best price for another twist? Any info you can give would help me tremendously! Thanks!