if your optima was running a little over 10 volts, then it already had a problem and the big 3 would not help....alrighty... so i did all the three.. and ummm my optima yellow top was originally running a little over 10 .. volts or whatever... after it dropped to about 8.5... but then when i hit really hard and played my stuff loud... it didnt drop at all.. is something wrong or...??
it was a new optima yellow top.. i had just gotten it yestarday... i hooked it up without the big 3 and it read a little over 10v... which is what my walmart bought battery was at.if your optima was running a little over 10 volts, then it already had a problem and the big 3 would not help....
time for a new battery
i have a boston acoustics spg-555^^^I think you need to watch that a little closer..
What equipment?