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Battery Question
CR2025
What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
Battery Question
http://www.panasonic.com/industrial/battery/oem/images/pdf/Panasonic_Lithium_CR2016_CR2025.pdf
Cheers "Jim Thompson" wrote in message ... CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
Battery Question
Jim Thompson wrote:
CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson JT, its going to be Voc/Isc id pulse test it to be accurate. Marc |
Battery Question
On Thu, 10 May 2007 16:42:48 -0700, Jim Thompson
wrote: CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson I have a used CR2025. It's not completely dead, with open circuit voltage of 2.8 volts. I also have a brand new CR2016 and CR2032. The CR2016 is thinner than the CR2025 and the CR2032 is thicker than the CR2025. I measured the impedances of all three and got these results: Frequency CR2016 CR2025 CR2032 20 Hz 63.5 92.6 9.1 100 Hz 58.0 82.6 7.9 1 KHz 47.0 48.0 7.1 10 KHz 18.9 33.0 4.9 100 KHz 4.8 29.2 3.2 1 MHz 2.6 27.4 2.6 The measurement was done with 10 mV across the cell, and the impedances are given in ohms. I would guess that a new CR2025 might lie between the CR2016 and the CR2032. |
Battery Question
On Thu, 10 May 2007 16:42:48 -0700, Jim Thompson
wrote: CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson The data sheet doesn't provide that specific detail but it does suggest that further info can be requested. http://www.maxell.co.jp/e/products/i..._DataSheet.pdf |
Battery Question
"The Phantom" wrote in message ... On Thu, 10 May 2007 16:42:48 -0700, Jim Thompson wrote: CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson I have a used CR2025. It's not completely dead, with open circuit voltage of 2.8 volts. I also have a brand new CR2016 and CR2032. The CR2016 is thinner than the CR2025 and the CR2032 is thicker than the CR2025. I measured the impedances of all three and got these results: Frequency CR2016 CR2025 CR2032 20 Hz 63.5 92.6 9.1 100 Hz 58.0 82.6 7.9 1 KHz 47.0 48.0 7.1 10 KHz 18.9 33.0 4.9 100 KHz 4.8 29.2 3.2 1 MHz 2.6 27.4 2.6 The measurement was done with 10 mV across the cell, and the impedances are given in ohms. I would guess that a new CR2025 might lie between the CR2016 and the CR2032. Nice testing there. What instrument(s) did you use? |
Battery Question
"Jim Thompson" wrote in message ... CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Panasonic used to have data. Check: http://www.panasonic.com/industrial/battery/oem/ I've drawn 180+ mA out of a CR2032 and ended up with a reasonable lifespan. Application was a little demo card with a bunch of LED's controlled with a AVR uC . The capacity specs are actually pretty accurate, even for really low draws. I have a machine that used a big AA sized lithium cell, and I didn't have replacement, so I soldered the wires to a new Panasonic CR3032 (we had a ton in stock). About a year and a half later, the battery died - surprised at the short life I measured the current draw - it worked out that the battery was to be dead right around that time! Thanks! ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
Battery Question
"Jim Thompson" wrote in message ... CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Panasonic used to have data. Check: http://www.panasonic.com/industrial/battery/oem/ I've drawn 180+ mA out of a CR2032 and ended up with a reasonable lifespan. Application was a little demo card with a bunch of LED's controlled with a AVR uC . The capacity specs are actually pretty accurate, even for really low draws. I have a machine that used a big AA sized lithium cell, and I didn't have replacement, so I soldered the wires to a new Panasonic CR3032 (we had a ton in stock). About a year and a half later, the battery died - surprised at the short life I measured the current draw - it worked out that the battery was to be dead right around that time! Thanks! ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
Battery Question
On Fri, 11 May 2007 08:32:37 -0400, "Oppie" wrote:
"The Phantom" wrote in message .. . On Thu, 10 May 2007 16:42:48 -0700, Jim Thompson wrote: CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson I have a used CR2025. It's not completely dead, with open circuit voltage of 2.8 volts. I also have a brand new CR2016 and CR2032. The CR2016 is thinner than the CR2025 and the CR2032 is thicker than the CR2025. I measured the impedances of all three and got these results: Frequency CR2016 CR2025 CR2032 20 Hz 63.5 92.6 9.1 100 Hz 58.0 82.6 7.9 1 KHz 47.0 48.0 7.1 10 KHz 18.9 33.0 4.9 100 KHz 4.8 29.2 3.2 1 MHz 2.6 27.4 2.6 The measurement was done with 10 mV across the cell, and the impedances are given in ohms. I would guess that a new CR2025 might lie between the CR2016 and the CR2032. Nice testing there. What instrument(s) did you use? Wayne-Kerr 6440B. See the images on ABSE. |
Battery Question
On Fri, 11 May 2007 08:32:37 -0400, "Oppie" wrote:
"The Phantom" wrote in message .. . On Thu, 10 May 2007 16:42:48 -0700, Jim Thompson wrote: CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson I have a used CR2025. It's not completely dead, with open circuit voltage of 2.8 volts. I also have a brand new CR2016 and CR2032. The CR2016 is thinner than the CR2025 and the CR2032 is thicker than the CR2025. I measured the impedances of all three and got these results: Frequency CR2016 CR2025 CR2032 20 Hz 63.5 92.6 9.1 100 Hz 58.0 82.6 7.9 1 KHz 47.0 48.0 7.1 10 KHz 18.9 33.0 4.9 100 KHz 4.8 29.2 3.2 1 MHz 2.6 27.4 2.6 The measurement was done with 10 mV across the cell, and the impedances are given in ohms. I would guess that a new CR2025 might lie between the CR2016 and the CR2032. Nice testing there. What instrument(s) did you use? Wayne-Kerr 6440B. See the images on ABSE. |
Battery Question
2 Attachment(s)
On Thu, 10 May 2007 16:42:48 -0700, Jim Thompson
wrote: CR2025 What is the series resistance new? I can't seem to locate a real specification anywhere. Thanks! ...Jim Thompson I knew that if I looked for one, I would find a CR2025 still in the package. Herewith the impedance and phase of that impedance for a new CR2025. It's quite a bit better than the used one I measured last night. |
Battery Question
"The Phantom" "Oppie" Frequency CR2016 CR2025 CR2032 20 Hz 63.5 92.6 9.1 100 Hz 58.0 82.6 7.9 1 KHz 47.0 48.0 7.1 10 KHz 18.9 33.0 4.9 100 KHz 4.8 29.2 3.2 1 MHz 2.6 27.4 2.6 The measurement was done with 10 mV across the cell, and the impedances are given in ohms. Nice testing there. What instrument(s) did you use? Wayne-Kerr 6440B. See the images on ABSE. ** What a " wank err " !!!! ( pun intended ) http://www.waynekerrtest.com/global/...430%206440.htm I found impedance figures near identical to those given for the CR2032 ( using a new example of same ) with just my bench sine wave generator, a scope and a few low value resistors. ........ Phil |
Battery Question
"The Phantom" "Oppie" Frequency CR2016 CR2025 CR2032 20 Hz 63.5 92.6 9.1 100 Hz 58.0 82.6 7.9 1 KHz 47.0 48.0 7.1 10 KHz 18.9 33.0 4.9 100 KHz 4.8 29.2 3.2 1 MHz 2.6 27.4 2.6 The measurement was done with 10 mV across the cell, and the impedances are given in ohms. Nice testing there. What instrument(s) did you use? Wayne-Kerr 6440B. See the images on ABSE. ** What a " wank err " !!!! ( pun intended ) http://www.waynekerrtest.com/global/...430%206440.htm I found impedance figures near identical to those given for the CR2032 ( using a new example of same ) with just my bench sine wave generator, a scope and a few low value resistors. ........ Phil |
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