- Sep 25, 2018
Ah the wrap your head around the whole idea thing.I'm still having a hard time wrapping my head around.
Yea initially it is somewhat confusing.
Think of it this way, if you are building a 14s9p Lets make it 14s10p easier to draw out. That are 14 series packs with 10 parallel cells in each pack making a 48V nominal Battery. Each 10p pack is a battery by itself but to achieve your nominal voltage of 48v you need 14 of these packs (batteries) in series. Each "pack will have 1 longmon to measure the pack voltage of 3.7 nominal.
If you build a single 14s10p battery in one chunk you will have a single battery with 140 cells that looks like this
In either case you will need a longmon on each individual 3.7v parallel section.
The former model is easier to service as you can have a single 3.7v 10p pack ready to change out if you are experiencing an issue with a pack.
The latter you need to take the whole pack off line to service 1 parallel section.
Also if you follow good building guidelines as in IR checking and making sure every cell is up to the strictest standards you should not experience any issues whether you go with design 1 or 2.
Hope this helps some of the head wrapping.