Reverse Battery Polarity; Battery Full; Remote Terminal Is Missing, Is Disconnected Or External Control Is Active - Victron energy Orion XS 12/12-50A Manual

5.1.4. Reverse battery polarity

Reverse polarity is when the positive and the negative battery cables have been accidentally swapped. The battery negative has
been connected to the positive terminal and the battery positive has been connected to the negative terminal.
• Be aware that a red or positive labelled cable might not necessarily mean that the cable is indeed a positive
cable. A wiring or labelling mistake could have been made during installation.
• Reverse battery polarity can be accompanied with a blown battery fuse (one that is located in the battery
cable).
The Orion XS is not protected against reverse battery polarity; any damage caused by this is not covered
under warranty.

5.1.5. Battery full

Once the battery is full, the Orion XS will stop charging or greatly reduce the charge current. This is especially the case when at
the same time the DC loads in the system are not consuming any power from the battery.
To find out the battery's state of charge (SoC), check the battery monitor (if present), or alternatively, check what charge stage the
controller is in. Also observe if the charge cycle is (briefly) progressing through these charge stages
• Bulk stage: 0-80% SoC
• Absorption stage: 80-100% SoC
• Float or storage stage: 100% SoC.
Be aware that it may also be possible for the Orion XS to think the battery is full when it is not. This can occur when the charge
voltages have been set too low, causing the Orion XS to switch to the absorption or float stage prematurely.

5.1.6. Remote terminal is missing, is disconnected or external control is active

Generally speaking, both the remote connector and the wire loop need to be present for the controller to be operational. In some
advanced systems, the remote on/off connector can be connected to an external device, a switch, a relay, or another type of
external control, like a battery BMS system.
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Manual - Orion XS 12/12-50A DC-DC battery charger
Example of correct and incorrect (reverse) battery polarity
Remote on/off connector with wire loop
Troubleshooting & Support