JS
2012-Nov-11 15:21 UTC
[Nut-upsuser] APC UPS: replacement battery always triggers shutdown
?I've been using nut on an APC Back-UPS 750 for several years with no problem, seeing the walled "UPS on battery power" messages during short 1-2 minute outages. This is connected with the original USB cable that came with the unit. After replacing the battery recently, nut always triggers a shutdown when AC power is cut off, even if only for 1 minute. I see that the data fields reported by nut have not changed (details below) and the runtime is stuck at 0, even with 35% charge. This runtime is an incorrect reading as I verified that stopping nut and cutting off AC power does indeed keep my computer running. It is only nut that thinks the runtime is 0 and triggers the shutdown. FAQs #37, #38 on networkupstools.org are related to this issue: ? ? ? ? ? networkupstools.org/docs/FAQ.html#_i_replaced_the_battery_in_my_apc_smart_ups_and_now_it_thinks_the_battery_is_low_all_the_time_how_do_you_fix_this I followed this procedure (charging the battery fully, letting it drain off a token load while UPS is grounded on a surge protector) but it did not help. Perhaps I missed something running this procedure; if anyone has suggestions for solving this they'd be greatly appreciated. I'm using nut-2.6.4-1 on debian linux (testing distribution, kernel 3.1.0-1). thanks, --jack Here are the details I see: => upsc apc battery.charge: 35 battery.charge.low: 10 battery.charge.warning: 50 battery.date: 2001/09/25 battery.mfr.date: 2008/01/25 ? ? ? ? ? ? ? ? ? ? ? ?<<<<<<<<<< battery bought 11/01/2012 ?? battery.runtime: 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?<<<<<<<<<< runtime = 0 with 35% charge above? battery.runtime.low: 120 battery.type: PbAc battery.voltage: 11.8 battery.voltage.nominal: 12.0 device.mfr: American Power Conversion device.model: Back-UPS ES 750 device.serial: 3B0804X42777 device.type: ups driver.name: usbhid-ups driver.parameter.pollfreq: 30 driver.parameter.pollinterval: 2 driver.parameter.port: auto driver.version: 2.6.4 driver.version.data: APC HID 0.95 driver.version.internal: 0.37 input.sensitivity: medium input.transfer.high: 139 input.transfer.low: 92 input.voltage: 119.0 input.voltage.nominal: 120 ups.beeper.status: enabled ups.delay.shutdown: 20 ups.firmware: 841.I2 .D ups.firmware.aux: I2 ups.load: 42 ups.mfr: American Power Conversion ups.mfr.date: 2008/01/25 ups.model: Back-UPS ES 750 ups.productid: 0002 ups.realpower.nominal: 450 ups.serial: 3B0804X42777 ups.status: OL CHRG LB ? ? ? ? ? ? ? ? ? ? ? ? ? ?<<<<<<<<<<<<<<< see FAQ #37, 38 ups.test.result: No test initiated ups.timer.reboot: 0 ups.timer.shutdown: -1 ups.vendorid: 051d -------------- next part -------------- An HTML attachment was scrubbed... URL: <lists.alioth.debian.org/pipermail/nut-upsuser/attachments/20121111/446dec55/attachment.html>
Kastus Shchuka
2012-Nov-11 16:45 UTC
[Nut-upsuser] APC UPS: replacement battery always triggers shutdown
On Sun, Nov 11, 2012 at 07:21:35AM -0800, JS wrote:> I followed this procedure (charging the battery fully, letting it drain off a token load while UPS is grounded on a surge protector) but it did not help. > > Perhaps I missed something running this procedure; if anyone has suggestions for solving this they'd be greatly appreciated.I've been in the same situation after replacing the battery in SC620I model. Then I found old.nabble.com/SmartUPS-and-new-battery-td20678966.html and followed the procedure: 1. Shutdown the apcupsd daemon. 2. Run apctest 3. Choose option 6 to enter terminal mode 4. Enter Y (UPS should respond SM) 5. Enter 1 (one, not el; wait 4 seconds) 6. Enter 1 (one, not el; UPS should respond PROG) 7. Enter 0 (zero, not oh; UPS should respond with current constant) 8. Enter + (plus) or - (minus) to increment/decrement the value 9. Enter R to reprogram constant value (UPS should respond Bye) 10. Enter Y (UPS should respond SM) 11. Enter 0 (zero, not oh; UPS should respond with the new constant) 12. Enter Esc to exit terminal mode 13. Choose option 7 to exit apctest. The value to store in the register 0 differs by the model. There is a table posted in the middle of the thread. I hope your model is listed there. If you cannot find your model, you may want to try experimenting with different values. In my case, after updating register 0, my UPS is back to 42 min runtime. Hope this helps. Kastus
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