im pretty sure you can get a new battery for your civic in the 85 dollar range that is meant for the car, if you have an interstate dealer call them and ask for a blemished one.

btw the current NAPA batteries are pretty good too - recently helped a co-worker install a battery in his E39 BMW, NAPA legend for 120/- plus tax in my area. Its the same as my diesel battery.

looks like a Deka battery and works great. Im sure that your civic one would be cheaper than that.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)