Originally Posted by
speedracer rc
2s2p means that the lipo has 4 cells total. 2 cells are wired in series "s" to get the proper voltage while maintaining the same capacity rating (amp hours). Where the other two cells are wired in parallel doubling the capacity (amp hours) of the battery while maintaining the voltage of one of the individual batteries. Basically means you have 2 cells that are 2500mah wired into parallel to make a 5000mah then 2 cells that are 3.7v will become 7.4v when wired in series. thats how you get a 7.4v 5000mah lipo.
If I'm reading you correctly, you've almost got this...
Take 4 batteries...A, B, C, and D.
Each of those pairs get wired up into series, so you end up with 2 sets of batteries in series, each set @ 7.4v 2500mah, to use your example.
AB and CD
Take Set AB, and wire it in parallel with set BC, and you double the capacity while maintaining the voltage.
AB+CD
The way you described it, it sounded like you have A and B wired in Series, to get 7.4v, then C wired parallel to D to double the amps @ 3.7v...