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ION 8650 Time Drift

Metering & Power Quality

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jlflesn
jlflesn
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Posted: ‎2025-10-02 01:02 PM

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‎2025-10-02 01:02 PM

ION 8650 Time Drift

Meter time has drifted after a power outage to the meter. One in particular was in an outage for 3 days and when the meter came back it was off time by just shy of five hours.  The battery percentage level was in the low 70 percentage range.  Is there a recommended level to replace the battery?  Is this issue pointing towards a battery issue?  Is there any way to test the battery to see what it is actually at?  We had this happen on five meters in the last month where the time is off after an outage. Any help would be appreciated.  Sync Type UTC, Sync Source Ethernet, Clock Source Line Freq. 

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Charles_Murison
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Posted: ‎2025-10-03 11:19 AM

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‎2025-10-03 11:19 AM

Hello @jlflesn ,

Having a meter lose 5 hours in 3 days is quite strange. 

"Is there a recommended level to replace the battery?"
Different customers may have different levels that they are comfortable with. Some may change at 10%, others 15 and some replace at 25%.

"Is this issue pointing towards a battery issue?"
Would need to do more investigation before I could point to a root cause. Recommend working with your local technical support to start a case to begin  troubleshooting. Meter's event log and dgd logs (need help from tech support to collect these) would be a minimum to begin investigation.

 

"Is there any way to test the battery to see what it is actually at?"

I believe measuring the voltage level on the battery can help however I cannot give you numbers like X Voltage = Y% battery life left. The meter has counters that keep track of how long meter was disconnected to control power and connected to control power. Based on these counters the meter will estimate batter life left. If counters reset without battery replacement or battery replacement without resetting counters the meter's estimate may not reflect what is left in battery.

 

Possibly the battery is not quite connected to the meter. Hard to say root case from description alone.

 

Regards,

Charles

L4 Prime for Advanced metering and Utilities
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RobGraham
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Posted: ‎2025-10-03 01:31 PM

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‎2025-10-03 01:31 PM

To add to this, the meter should trigger a Priority 30 event if the battery is low.  https://product-help.schneider-electric.com/PowerLogic-ION8650/en-us/content/12-logging/event-loggin...

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