[Arct1k]

Don't know what that linc guy is on - That what I was saying...

i.e. This is why it won't work

This is a 4s battery

Tap 1 Battery 1 Cell 1 (-)
Tap 2 Battery 1 Cell 1 (+) / Cell 2 (-)
Tap 3 Battery 1 Cell 2 (+) / Cell 3 (-)
Tap 4 Battery 1 Cell 3 (+) / Cell 4 (-)
Tap 5 Battery 1 Cell 4 (+)

This is an attempt at a 2s 1p as 4s and why it doesn't work

Tap 1 Battery 1 Cell 1 (-)
Tap 2 Battery 1 Cell 1 (+) / Cell 2 (-)
Tap 3 Battery 1 Cell 2 (+) / Battery 2 Cell 1 (-) / Battery 1 Cell 1 (-) - because the batteries are in parallel i.e. you will short the battery
Tap 4 Battery 2 Cell 1 (+) / Cell 2 (-)
Tap 5 Battery 2 Cell 2 (+)