Tuesday, October 13, 2009

Flywheel Off and Nuggets of Wisdom on Cost vs. Benefit of Pack Chargers

I find myself in Oregon again, slowly mulling over which parts to buy. Worthy of note, I REMOVED THE GLAND NUT FROM THE GHIA FLYWHEEL AND DISPOSED OF THE ENGINE! I then poslished the flywheel and bagged it for the inevitable install.

On the pack charger vein and a marathon of research, it appears that using 12 Soneil 12V 1205 chargers is a bad idea. A design change by Soneil makes that series of chargers (and perhaps more) incapable of a series connection.

There is good news however. To quote "BB", "Although I've posted about this before, I've been using 16 of theSoneil 12V 1212SR chargers in the RX-7 for many years withoutmurdering batteries!" (keyword Suck Amps)

So at least the 1212SRs work, but at higher price point of $90 -- probably the other reason behind the 1205 neuter. So for those trying to avoid balancers on each pack, it appears that the 1212 is still capable charging a series pack ladder. At 12 batteries x 5 amps, you would be pushing 60Amps into a 144V pack for 8.64KWh all night long. At 114VAC, this is roughly 6.3A continuous, which fits nicely into a 10A service socket.

Lastly, the Costco Business center carries 12V battery lugs x 5 for $6.35.

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