There is an aspect of the rate of discharge impacting battery degradation. Theoretically you rate of discharge would be higher for both the P and LR w/boost than the stock LR with respect to rate of discharge. Unless you are tracking the car every day, and that is the only way you use it, I doubt it will be an issue. In general the batteries degrade the most in the first year anyway. Even if you take great care of the battery time is still a factor and the first year is usually the worst.