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I was changing my oil yesterday when I noticed some rust on thr frame rail under the battery box. Today I pulled the battery out and to my surprise my 10 month old Optima was leaking from the negative terminal. They exchanged the bad battery for a new one, no questions asked. I bought this battey specifically for the purpose of not leaking. Honestly, I didn't know they could leak. Now I,m left with a major clean up, I'm so disappointed with Optima batteries. Any tips or suggestions on how to do this the correct way would be appreciated.
T.I.A.
It wont make you feel any happier but the whole point of an Optima is that it's an absorbent glass mat battery. Unlike a lead acid battery the electrolyte is held by the mat in the battery. If the case cracks it'll still leak something; it's just less than traditional batteries. No consolation for you but it's rare.
Don't forget to neutralize the acid with baking soda when you're doing your clean up! I have a Red Top, I'll have to keep an eye out for this which I was hoping I would not have to do!
My recent research on Optima found they rely a bit too heavily on brand recognition for its own sake and reading about your misfortunes is consistent with this.
Based on installing a high-end audio system, my homework led me to the XS Power D3400. They make a smaller battery with side-posts that will fit the stock cables and screw-in terminals, but I needed the biggest battery that would fit the tray. The top-post D3400 fits in the stock tray almost too perfectly. The only caveat is you will have modify the cables and terminals to reach and fit the M6 top-side terminal screws.
I was changing my oil yesterday when I noticed some rust on thr frame rail under the battery box. Today I pulled the battery out and to my surprise my 10 month old Optima was leaking from the negative terminal. They exchanged the bad battery for a new one, no questions asked. I bought this battey specifically for the purpose of not leaking. Honestly, I didn't know they could leak. Now I,m left with a major clean up, I'm so disappointed with Optima batteries. Any tips or suggestions on how to do this the correct way would be appreciated.
T.I.A.
Sounds like you over tightened the battery stud. If I remember correctly, it only takes 11 in lbs of torque. Just snug. Of the 9-10 OPTIMA batteries I've had since the mid '80s, not one of them has ever leaked (or otherwise failed).
Clean up was easier than I thought it would be. I removed the lower inner fender and the plastic panel around the battery. That exposed the area very good. I took Naval jelly and a foam sanding pad to the surface rust and it cleaned up easily. I also used some baking soda. The leak was in the general area of the negative terminal but my eye sight isn't what it used to be. Guess its possible i over tightened it, first time for everything. Might have been a case leak above the negative terminal like in a previous thread. I dont know. I will be picking up an acid absorbing mat for under the battery asap. I just need to dry the area out and paint it and I'll be back on the road. What a pain in the A$$. I think its Miller time.
I bought a Red Top a few years ago for my Silverado and had to replace it in a few months because it wouldn't hold a charge. This will be my last Optima.
My recent research on Optima found they rely a bit too heavily on brand recognition for its own sake and reading about your misfortunes is consistent with this.
Based on installing a high-end audio system, my homework led me to the XS Power D3400. They make a smaller battery with side-posts that will fit the stock cables and screw-in terminals, but I needed the biggest battery that would fit the tray. The top-post D3400 fits in the stock tray almost too perfectly. The only caveat is you will have modify the cables and terminals to reach and fit the M6 top-side terminal screws.
I wouldn't expect anything less from a $160 battery.
Too bad everyone with a Red Top has a different story. More than enough people have documented problems.
Congratulations, you were lucky to get one of the good ones
I have a Red Top as well, it's always given me good service, but it's on a "Battery Minder" float charger almost all the time the Corvette sits in the garage, (which considering my failing health,) it's gonna be awhile, but this episode with a leaking terminal is gonna have me out in the garage and inspecting my own Optima Red Top this weekend. Mine is 6 years old. But even though I've had good luck with them, anything is possible. I bought mine because I too, wanted a battery less likely to leak. But I have heard that over tightening at the terminal connections is a good way to create a leak. 11 pounds torque is about right from I've been told. Si it's Tight, but not crushing tightening is the way to go !