Can somebody help me understand lipos a little better? I havenít been able to find a good guide that explains everything yet.
I know that with a 2s 30c 5000mah battery will put out a possible maximum of 150 amps continuously. How does the cell(2s) play into it?
Generally, 3s is considered better then 2s but how is it better? Does it put out more amps continuously? How many amps would a 3s 30c 5000mah battery put out? 150amps?
How would a 2s 30c 5000mah battery compare against a 3s 30c 5000mah battery?
2s and 3s and so on, is just the number of cells wired up in the pack, in series.
The more cells wired in series, the higher the voltage. Conversely, the more cells wired in parallel, the more mah/runtime.
Parallel is denoted by a "p" with regards to lipo. So, 2s2p would be two cells wired in series (7.4v) and then also wired in parallel to get more mah.
You're confusing yourself as to what is better, 2s or 3s. If better is more voltage, than 3s will be 'better' and faster. However, more voltage is not necessarily better. I'd rather have a good quality 2S than a junk 3S.
And yes, you have the 30C/continuous amp equation figured out exactly.
Always get the most capacity and C rating you can. Overkill is better than underkill.
You are unique just like everyone else
About half way down the page, look for Tutorial number 1: lipos.
Dyna Wide Glide
The #S is the Number of Cell in Series, if it was #P it would be number of cells in Parallel.Originally Posted by bsk997
Batteries in SERIES add their voltage together and the mAh (runtime) capacity stays the same, so a 2s(7.4V) and a 2s (7.4V) in series makes a total of 16.8V, if they were in parallel it would a total of 7.4V but double the run time.
Each LiPo cell is generally rated at 3.7V, so 1s =3.7V, 2s = 7.4V, 3s = 11.1V, 4S = 16.8V, 5S= 18.5V, 6s = 22.2 and so on.
C rating of a LiPo is the discharge capacity.
mAh is the capacity it can store, or better known to us as runtime. The higher the mAh generally means the longer the runtime before needing to recharge.
In order to find the discharge capacity in amps of a battery you need to know its mAh and C discharge rating.
You multiply the mAh by the C rating and divide by 1000 (5000 X 30)/(1000) = 150 Amps
So to answer your question a 2s 30c 5000 mah, and a 3s 30c 5000 mah can both output 150 amps, the difference is that one outputs 150 amps at 7.4V and the other outputs 150 amps at 11.1V (due to one being 2s and the other being 3s)
The more voltage (more cells) the higher your speed and power.
Hope i typed everything correctly and you understand.
^^^ Now this just need to be stickied in a FAQ. I think it's about time.
**I hope there are RCs in Heaven; EMBE + 6S FTW!**