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2022-03-05 21:27 13/14
'Internal Error' shown on battery status
The 'Internal Error' shown in battery status is not a critical error. This only defines that within a
battery system, some of the slave batteries are offline(which is due to these modules have been
discharged to an extremely low SOC or being in idle mode for more than 72hrs), once the system is
available for a charging activity such an error will be automatically eliminated.
'High voltage' warning or alarm shown on battery status
The 'high voltage' warning or alarm is not unusual on new batteries that are not yet balanced. To help
the batteries balance quickly, keep the batteries fully charged until the errors go away. In an ESS
system, set it to 'keep batteries charged', in an off-grid system the fastest way is to either charge /
balance the battery before installation, or to fully charge with a generator if not enough solar is
available to keep the batteries fully charged.
If you are unable to maintain the target voltage to balance the batteries without the 'high voltage'
alarm occurring, you may need to enable and set the "Limit managed battery charge voltage" setting
in the DVCC menu of the GX device. Reduce this voltage as necessary until the alarm stops. After
sufficient time to balance the batteries, try increasing this value until it can be disabled again for
normal operation.
If it is not possible to raise the voltage over time, and eventually disable this manual override:
1: If you have 2 or more batteries in your system, you can try shutting down the system once it is as
close to fully charged as possible, and then physically connecting the batteries in smaller groups (or
even individually) so that balancing can occur on each individual battery without it being masked by
the others connected in parallel. It may help you to see the indicator lights on the battery (if available
on that model) to find which battery might be out of balance with the others.
2: Contact your Pylontech dealer for further assistance (they can provide additional software to see
individual cell level data), or assist with other potential solutions.
10. Further Information
For information about where to buy or find suitably qualified installers, visit the
Victron Energy - https://www.victronenergy.com/live/
Victron & Pylontech UP2500, US2000, US3000, US2000C, US3000C, UP5000, Phantom-S, Force-L1 & L2
Where to Buy Page.
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