battery light on under 2,000 rpm
for the last two weeks ive noticed my battery light will randomly flicker (not flash just like it wants to turn on then changes its mind) and then go away. it used to do it only rarely, but now its doing it every time i am driving for more then 20 min. yesterday it started staying on solid, but only when it was sitting at under 2,000 rpm, i could rev it up, and it'd go away. now i only have 65,000 km on my truck (just over 40,000 miles) and i have had to replace the alternator before because the bearings were going on it, so im wondering if that could have drained my battery and not charged it properly. but i dont get why its only below 2,000 rpm.
also as far as running extra stuff, i had an amp and sub in for a couple months but got rid of those long ago, i have 6 fogs wired up, but rarely use them other then that, no extras.
is it just my battery messed from the old alternator, or could there be more problems?