I would think so - you are not shorting it out, but getting a reasonable current (few mA, normally) so you are loading the battery > ---------- > From: Scott Walsh[SMTP:Scott.WALSH@PLANTRONICS.COM] > Reply To: pic microcontroller discussion list > Sent: Thursday, November 27, 1997 8:37 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: Re[2]: Batteries > > About putting a known load on the battery ... can you do this > while > the product that is running from the battery is still working? > > regards, > SW. > > > ______________________________ Reply Separator > _________________________________ > Subject: Re: Batteries > Author: tjaart@wasp.co.za at INTERNET > Date: 26/11/97 06:45 > > > Andrew Mayo wrote: > > > > In order to reliably determine battery life, you really need to be > able > > to briefly switch a load across the battery which draws a > predetermined > > current and then measure the battery voltage. Battery manufacturers > can > > supply voltage/time curves for a given load, if you ask. > > This is exactly what we do to determine a 6 cell NiCd pack's state. I > discharge it over a 47E resistor for 10s and measure the voltage under > load. > > A few people have asked about good batteries to use lately. A very > nice > battery (but a bit expensive) is the Hawker (previously Gates) Cyclon > 2V lead acid cells. They combine all the nice features of lead acids > and NiCds. > > -- > Friendly Regards > > Tjaart van der Walt > mailto:tjaart@wasp.co.za > _____________________________________________________________ > | WASP International http://www.wasp.co.za/~tjaart/index.html | > | R&D Engineer : GSM peripheral services development | > | Vehicle tracking | Telemetry systems | GSM data transfer | > | Voice : +27-(0)11-622-8686 | Fax : +27-(0)11-622-8973 | > | WGS-84 : 26010.52'S 28006.19'E | > |_____________________________________________________________| >