meem

just tried to install a new optima battery and i'm embarrassed to admit that i cannot figure out how it mounts to the factory metal mount. i don't have an oem battery to compare it with -- in fact, i suspect the battery that i'd previously installed also was not mounted correctly. are there cut-outs on the underside of the battery that the flanges on the metal mount partner to? what degrees of freedom does the battery have when properly mounted?

on perhaps a related note, i tried to get an optima 35 (since that's what their website recommended), but i went with a 25 since the 35 was out of stock and i couldn't see any differences in the spec sheet between the 25 and 35. is this mounting issue the difference?

thanks!

JustJeff

Optima Batteries do not have the flange on the back, or it's not the right size to slide in under the metal part.

sjcTT

It really only works with batteries close in size to the OEM battery. I have an Optima and I had to fabricate a new, larger "clamp" to replace the factory piece. The battery should not move at all when properly mounted.

JustJeff

Diff bet. Optima 25 and 35 is reversed battery posts, same CCA=720

meem

thanks! can you elaborate on how the front clamp works?

JustJeff

<img src="http://www.loomknitting.com/auditt/images/batterydetails.jpg">

meem

or are most running with the battery unsecured? it seems i have been as well for a number of miles and nothing went horribly wrong -- though this seems like a bad idea.

what's involved in making a custom clamp?

meem

i thought that was the difference between a 35 and 35R?

JustJeff

Maybe, I just saw that info. from a 'google' search, I mean the internet doesn't lie, right?

Scenic Driver

<a href="http://www.1st-optima-batteries.com/">click</a>