Balancing tap is nothing more than wired taps on your batteries. If you are going to run 3s IMR's, wire in a balancing tap and the DNA200 will charge and monitor each cell. the eBay link is for reference only http://www.ebay.com/itm/5-PCS-3S1P-Balance-Charger-Cable-Wire-JST-XH-Connector-Adapter-Plug-/221751627797?pt=LH_DefaultDomain_0&hash=item33a16d5015 -C