(2)2s or (1)4s

[Thirdgen89GTA]

Originally Posted by dpb318

thanks guys, i was kind of leaning towards the 1 4s like you have suggested

only thought is if i kill a pack i only need to replace half of the cells rather than the whole thing

brian, the 2p i reference was acknowledging that i would not be gaining that advantage since id be wiring in series in my case

it seems that 4s2p or even 2s2p is not quite as popular as it was when i last bought lipos? is this just because cell technology has improved and 2p is not needed as much to get the proper c rating?

Pretty much. The higher C ratings are helping with that.

Originally Posted by lincpimp

2p assembled packs are just a bad idea. You cannot accurately balance the cells, as 2 are connected. If those two cells are not perfectly made and matched one will work harder then the other and wear out faster.

Doing 2p with seperated packs is ok, as you can just charge all of the cells in series and balance them. Example, using 2 2s packs wired in parallel for 2s2p, then charging the packs in series for 4s1p.

Personally if you have enough draw to require 2p, why now half the motor kv and run double the voltage... I know this cannot be done all the time, but up to 8s we have the esc tech.

Get lipos from hobbypartz, at their prices if a cell dies just toss the pack and buy another. Or pull the cell and use it in another rc. You can always find use for a 3s if a cell dies in a 4s pack. A 1s pack is not much use if one cell in a 2s pack dies. Plus, it is not a good idea to run a new pack with a used pack, so if one of your 2s packs dies you will be left with a potentially useless 2s pack and have to buy 2 more 2s packs...

This is how my Truggy runs. When I talk about 4S and 6S i'm really talking about (2) 2S in series, and (2) 3S in series. since I run a dual saddle pack layout on the truggy.