Reddit reviews Optima Batteries 8020-164 35 RedTop Starting Battery
We found 4 Reddit comments about Optima Batteries 8020-164 35 RedTop Starting Battery. Here are the top ones, ranked by their Reddit score.
Reserve capacity of 90 minutes for constant performance.Voltage: 12 VoltsOptimal starting power even in bad weather. Case material is PolypropyleneFifteen times more resistant to vibration for durabilityThis item is not for sale in Catalina Island12-Volt, 720 Cold Cranking Amps, Size: 9.38 x 7.69 x 6.75-Inches Weight: 31.7 pounds, SAE Posts
My neighbor recently bought this:
https://www.amazon.com/Optima-Batteries-8020-164-Starting-Battery/dp/B000MS9VZK
And the negative terminal was loose so he returned it. Amazon required him to pay return shipping which was IIRC over $40. Good luck getting credit for the return shipping.
I changed my starter and battery when I changed my coils and plugs. Starts instantly now and there's no more hot start issue.
The starter was cheap, like $100. Don't buy the starter from Mazda, they quoted me $400 for it. But the battery was about $160. Just make sure your battery has enough power.
Here's the battery I got
Optima Batteries 8020-164 35 RedTop Starting Battery https://www.amazon.com/dp/B000MS9VZK/ref=cm_sw_r_cp_awd_kCy-wb2GSERYB
There is a tutorial to scratch build an Optima battery, and it is quite simple. Let me see if I can find it.
Edit: here is a tutorial.
Amazon is the cheapest I've seen, about $150
http://www.amazon.com/Optima-Batteries-8020-164-Starting-Battery/dp/B000MS9VZK