I built a 10s2p battery using 30Qs a couple of months ago. Last week I got my hands on 30 samsung 30Q cells.
A) Build a 10s3p pack. Connect in parallel (XT90 parallel adapters or XT90 using 12/14AWG wires) with the 10s2p pack to complete a 10s5p configuration. Is it safe? Should I have a BMS for each pack, or make the balance wires parallel as well?
B) Dismantle the old pack and build a 10s5p pack. Is it easy to dismantle old packs?