Charging Opima Red Top, Is there a trick I should know? Options

[vesnyder]

My year old Optima Red Top battery lost it's charge and I am trying to figure out a way to recharge. I've read the old posts that suggests hitting it with a big charge (75 amp) for a short period and that will allow it to be charged normally. I ried that and it is not working? I have a decent Die Hard charger that goes through an assessment of teh battery before it begins to charge and I get the fault flashing light every time? I've tried all the settings - Type I and Type II, along with the trickle charge, standard and 75 amp start charge and nothing? My latest attempt is to put a trickle charge on it and see if that works? Any ideas/suggestions?

Thanks in advance!

[dmenche914]

Ditto on that my red optima sat and died, many years old, It took a lot of trying, but after several days on a low current cahrge it came back, and now starts my triumph every week or so.