home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.electronics
- Path: sparky!uunet!utcsri!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: How full is a nicad
- Message-ID: <BzwGxM.3u@zoo.toronto.edu>
- Date: Sun, 27 Dec 1992 04:10:31 GMT
- References: <1992Dec15.103954.6299@quando.quantum.de> <BzD705.C94@zoo.toronto.edu> <1992Dec19.230112.8340@klic.rain.com> <1992Dec22.170146.21708@nmsu.edu>
- Organization: U of Toronto Zoology
- Lines: 14
-
- In article <1992Dec22.170146.21708@nmsu.edu> kcarver@dante.nmsu.edu (Kenneth Carver) writes:
- >>>>I believe you can tell how full a nicad is from it's Voltage...
- >>>No, you can't. This is one of the fun problems of building a NiCd charger.
- >>>The output-voltage curve of a NiCd is essentially flat from pretty nearly
- >>>full charge to pretty nearly empty.
- >
- >Ah, but there *is* a way to determine when full charge is reached.
-
- That's why I said "pretty nearly". :-) Yes, you can detect full charge by
- being tricky, but it's nothing so simple as just measuring the voltage,
- and it won't help determine the state of a partially-discharged cell.
- --
- "God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
- -Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
-