Re: How much is the IC-7000 going to cost me?
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Hi Joanne,
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Actually, the safe end-point of discharge for a lead-acid cell is 1.8V (10.8V for a 6-cell, 12V battery). Hence the end-cell. The output of a 7-cell lead-acid battery under C/10 load will range from 14.7V (fully-charged, off the charger) to 12.6V (safe end-point of discharge.) In practice, it is unlikely that a Field Day setup will have a 200 Ah battery (C/10 = 20A). Thus, the output voltage under full transmit load will be less than the nominal value at both ends of the range, and the discharge curve will be correspondingly shorter. Oh well, chalk up a sulphated battery to FD incidentals... Cheers for now, 73, Adam VA7OJ/AB4OJ -----Original Message-----
From: jdow [mailto:jdow@...] Sent: 25 February 2005 12:00 To: ic7000@... Subject: Re: [ic7000] How much is the IC-7000 going to cost me? From: "Adam Farson" <farson@...> 3. Nobody knows yet. In any event, a properly-designed charging systemAnd if you draw down below 12 volts you generally destroy the battery if you repeat this very often or go significantly below 12 volts. But who cares about that if it's field day and you want an extra 5 minutes out of the battery? {^_^} Yahoo! Groups Links Scanned by WinProxy |
Adam Farson