Parallel Lead with T-Plugs (Deans type) Deans Type connecter leads for connecting 2 lipo batteries in PARALLEL. Connecting lipo batteries in parallel will keep the voltage the same but double the battery capacity. For example, when connecting 2 X 1300mAh 11.1v lipo battery packs in parallel you will get a 2600mAh 11.1v lipo battery pack. Connecting the batteries in Series will double the voltage and keep the capacity the same. Comes with instructions on how to parallel 2 lithium polymer batteries together