av8rk

i have a duralite plus lithium-ion 4000 mah, 7.4 volt, 4 cell, 2s 2p battery....everything performs fine - no problem

am i correct to assume that each cell in the pack is 3.7 volts?
then, with these 4 cells, cells 1 & 2 are wired in parallel, then cells 3 & 4 are wired in parallel...
so now i have two 2 cell 3.7 volt packs....
then, these two packs are wired in series and now the voltage doubles to 7.4 volts.....
then the charge safe circuitry is added along with the charge and power leads, then shrink wrapped.....

i just want to make sure that i understand correctly what the 2s 2p means....
i'm new to lithium technology so i figure asking this question here would educate me....

thanks for any input,

Richard

DuraliteTech

Hi Richard,

Basically 2s2p means that you have 2 cells (2s) wired togerther to increase your output voltage. Then if you double that configuration and wire them together (2p) you increase your total capacity.

So if you take a 3.7 volt 2150 mah cell and make it a 2s configuration then your voltage is 7.4 volts but your capacity remains the same. Now if you take two of those 2s 2150 mah configurations and wire them in parallel (2p) then your double your capacity to 4300 mah but your voltage remains at 7.4 volts.

av8rk

hi mark,
thanks for the clarification...

so, your saying that my supposition of 2s 2p in my original post is correct?

richard

BarracudaHockey

My Feedback: (11)

Actually in your example 1 and 2 would be wired in series, 3 and 4 would be wired in series, and the resulting two packs would be wired in paralell

av8rk

thanks andy,

i knew you would set me straight...

anyway, how have you been?

richard