Bruce,
I haven't been driving the civic much lately, but when I was focused on driving it only, I had no problem with the battery I had. You know well I coast often. Sometimes I get lazy and take the highway and don't do any engine off anything unless there is a substantial downhill (usually I'll accelerate to 65 on any kind of advantageous terrain, and hold the load such that my speed reduces very slowly to 55, rinse repeat). Not to get too far off topic here, but as someone with a similar vehicle and similar techniques, I'd just get a new battery and wait on doing anything additional. My tiny little battery has been serving my abusive habits well (even in winter) since I've owned the car, and the battery came with it. Although I've eliminated my power steering and A/C, I'm still probably a heavy accessory user (FM transmitter for ipod + maxed out head unit to amplify the wimpy signal, and sometimes a GPS on trips) I seldom start with the key. Another side note: I don't know how much abuse my clutch had encountered with previous owners, or if it has been replaced, but I think I'm starting to see signs of slippage. Hope it's not solely from my constant bump starting :/ Be careful of this Bruce! Good luck!
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