RCU Forums - Parallel Connection

RCU Forums (https://www.rcuniverse.com/forum/)

- E-Flight Power Sources (https://www.rcuniverse.com/forum/e-flight-power-sources-126/)

- - Parallel Connection (https://www.rcuniverse.com/forum/e-flight-power-sources-126/6369692-parallel-connection.html)

mnrcaerobat

09-14-2007 10:11 PM

Parallel Connection

To connect two lipos in parallel, do they have to be the same capacity? I want to know if I can hook a tanic 3 cell 2150 mah pack and a thunder power 3 cell 2100 mah pack in parallel. I think the tanic is rated 12C and the TP is 15C.

guver

09-15-2007 03:09 AM

RE: Parallel Connection

No, they just have to be the same voltage at the time of hooking them.

Dr Kiwi

09-26-2007 12:32 PM

RE: Parallel Connection

I think you are bound for trouble - though the initial voltage may be the same the cells are different in terms of internal resistance and one pack will drop more voltage under load (so they will be mismatched), and one will drain before the other.

Red Scholefield

09-26-2007 01:03 PM

RE: Parallel Connection

Quote:

ORIGINAL: Dr Kiwi

I think you are bound for trouble - though the initial voltage may be the same the cells are different in terms of internal resistance and one pack will drop more voltage under load (so they will be mismatched), and one will drain before the other.

Sorry, but the electrochemistry will not permit this. The packs will discharge evenly in proportion to their stored capacity.

See www.rcbatteryclinic.com - article on parallel operation for detail explanation.

All times are GMT -8. The time now is 03:27 PM.