Optima D34

Very expensive & very poor performance – Car must be driven daily or the d34 battery will die. Could possibly listen to the radio for 10-15 minutes without engine running but only if the battery is new & fully charged. However I wouldn’t recommend it. also they don’t stand behind their product. Warranty is worthless.

If it's so good should have 5 year guarantee – It's good because it dry cell I wish the company can make the guarantee longer then 12 month's should be be 5 year's as the company says it last more than 10 year's witch I don't definitely believe at all I have one 1 ded cell it's rubbish I can't use it anymore after 3 years specially when it's so much $399