i was originally gonna go with something that could jump start a car 4 times on one charge. the reviews seem okay and it was $140 so id imagine for that price its decent. but i dont need to jump start my car, i need to charge my phone and extra batteries etc. what do you guys use? what should i look out for? ive noticed alot of cheap chinese brands off amazon so im a bit weary before i buy one of these. any and all feedback is appreciated. thanks!