Originally Posted by
trf211
What nbTMM said is correct from my experience. Having a healthy battery and a worn battery wired together will cause quicker discharge of the weak battery, not the healthy one. The old battery has LESS capacity, therefore drains quicker.
This is possible, but only for an aged pack that has lost capacitance, if you have 2 packs that are close to age with identical capacity but different IR's, then the pack with least resistance will drain first... I have killed enough brand new packs to prove this to myself
Originally Posted by
trf211
Resistance does affect how much power can leave the battery but the amount of resistance in these batteries is very low to begin with, making it less of a factor.
100% false... not only does IR of each pack make a difference, but also the wiring of each connector, you are flirting with miss-matched resistance when too many different connectors are in the circuit, nothing good will come with miss-matched packs
Keep in mind that my experience with running packs in series was about 6+ years ago with 35C packs, I didn't have an IR meter at the time but was able to confirm the 6 month old pack still had the same capacity as the new pack. Both packs came from the same brand and same specs... the new one ballooned on me.
I switched to a single 4S pack and all my LVC issues went away, I also continued to use the 6 month old pack that was in my series circuit in my 2WD SCT for another 6 more months before any signs of swelling appeared.