Our '07 Accord k24...
I bought a group 24f rated at 725 CCA to replace the 7 year old AGM 51r, which is rated at 440 CCA. The 51r is now testing at 420 to 440 CA at around +10 deg C, which is much warmer than -18 deg C (0 deg F) that CCA is rated at. So I think it's time to replace, even if it's cranking o.k. for now. The group 24f will fit, and it's a common upgrade on Accords, so why not? The 24f weighs 14 lbs more, and cost $16 more than the 51r (I was looking at non AGM this time).
I'll install the 24f tomorrow, and post some pics. The cheapskate in me wanted to run the 51r a bit longer, but thankfully, common sense regarding upcoming -30 deg C cold snaps has prevailed.
I bought a group 24f rated at 725 CCA to replace the 7 year old AGM 51r, which is rated at 440 CCA. The 51r is now testing at 420 to 440 CA at around +10 deg C, which is much warmer than -18 deg C (0 deg F) that CCA is rated at. So I think it's time to replace, even if it's cranking o.k. for now. The group 24f will fit, and it's a common upgrade on Accords, so why not? The 24f weighs 14 lbs more, and cost $16 more than the 51r (I was looking at non AGM this time).
I'll install the 24f tomorrow, and post some pics. The cheapskate in me wanted to run the 51r a bit longer, but thankfully, common sense regarding upcoming -30 deg C cold snaps has prevailed.