Yes, bleeds of cells so they do not go over 4.25 volts per cell. This is low cost system. If you want better system the I would go with Thunder Power TP-1010C charger and TP-210V balancer and that would do the job for most any LiPo batteries. Thunder Power setup only cost $300.00. Lots of charger options out there. Blinky was asked about and I gave info.