Help with battery problems plz

[Grimlad]

I need/want to replace my battery in my '71 Chevelle, because I keep having problems with it going dead. I have an Energizer 34/78DT - CCA 850/CA 1000 currently, but was looking to go with an optima yellow top D75/25 after speaking with an optima Tech. The reasoning is that since I have a 350 engine, an alarm system and an Alpine stereo with amp booster installed, the battery is going dead while she waits for me to use her (mostly weekends right now). I have tried to research why and it seems all the components are really taxing the battery. And since I plan further pro-tour upgrades, I need dual purpose battery like the Optima. I was told my alternator is fine.

What does everybody think? Does that sound right?
I am concerned with the loss of crank amps (from 850 to 650).
Why did he not suggest the Optima yellow top D34/78 since it has CCA750/CA870? Does it have to do with the terminals?

Thanks for all inputs, insights and suggestions,
Sean

[megaladon6]

since the car has a 34/78 i'd stick with that case on the optima. i have an optima in my vw tdi and my monte and have had zero problems.

[PRRC]

Sean, The yellow top won't solve your problem on the battery going dead. If you have a draw on the battery and use the car only on weekends your best bet would be to diconnect the battery. But if your radio has memory then you will lose your preset stations. I'm sure he suggested the yellow top because it is a deep cycle battery and can take the charge and discharge without ruining you battery. Another option would to use a battery tender.
Tim

[Grimlad]

Thanks,

megaladon6, I am going to do as you suggest and stick with the 34/78.

prrc, I will disconnect the battery between weekends for now as you said (until I can use her more in the summer). Not too worried about the radio, I really only listen to my own cds, lol. Thanks for the info though I definitely would not have thought about that til after.

Sean