Author Archives: admin

Generic on/off charger isn’t charging, but should be (for standard Orion BMS)

Start with everything set up such that the charger should be charging the batteries. The following assumes that the charger is connected to the BMS using the charger safety relay output. Step 1. Open the BMS utility and select File … Continue reading

Posted in Problems with Charging and State of Charge, Troubleshooting | Comments Off on Generic on/off charger isn’t charging, but should be (for standard Orion BMS)

Brusa charger isn’t charging but should be (for standard Orion BMS)

Start with everything setup such that the charger should be charging the batteries. Step 1. Open the BMS utility and select File -> Connect to the BMS. If you are unable to connect to the BMS, see the Troubleshooting Guide … Continue reading

Posted in Problems with Charging and State of Charge, Troubleshooting | Comments Off on Brusa charger isn’t charging but should be (for standard Orion BMS)

Eltek charger isn’t charging, but should be (for standard Orion BMS)

Start with your system set up such that the charger should be charging the batteries. Step 1. Open the BMS utility and select File -> Connect to the BMS. If you are unable to connect to the BMS, see the … Continue reading

Posted in Problems with Charging and State of Charge, Troubleshooting | Comments Off on Eltek charger isn’t charging, but should be (for standard Orion BMS)

Replacing one or more cells

If a cell within a battery pack fails or is damaged, it may need to be replaced. While a properly configured and properly integrated BMS can protect the cells from over voltage, under voltage, over current and over temperature, it … Continue reading

Posted in Problems with Cells, Troubleshooting | Comments Off on Replacing one or more cells

Pack voltage is reading a different voltage than measured by a voltmeter

Possible Causes: In some situations the total pack voltage sensor calibration may drift and produce voltage readings that are higher or lower than the actual pack voltage over time. This only occurs when the BMS is used in applications with … Continue reading

Posted in Problems with Voltages, Troubleshooting | Comments Off on Pack voltage is reading a different voltage than measured by a voltmeter

Pre-Balancing Cells

Lithium ion cells are often shipped from the manufacturer at different states of charge from one another. This is sometimes due to the manufacturer pulling from different lots, cells with vastly different discharge rates, or a result of the manufacturer … Continue reading

Posted in General | Comments Off on Pre-Balancing Cells

Using Multiple Chargers in Parallel

In some cases, it may be desirable to charge at a rate faster than one charger can handle. Some charger manufacturers allow paralleling two or more chargers together to achieve a higher charge rate. The Orion BMS can be configured … Continue reading

Posted in Charger Integration | Comments Off on Using Multiple Chargers in Parallel

Setting Up EngineLink

EngineLink is an application for Apple tablets and smartphones that interfaces with OBD2 enabled devices (via an ELM 327 OBD-II WiFi adapter) and provides visual feedback in the form of gauges and digital readouts of the various parameters and values … Continue reading

Posted in Display Integration | Comments Off on Setting Up EngineLink

P0A04 – Open Wiring Fault (or “Open Cell Voltage Fault”)

This fault is a serious code that effectively disables the BMS and often causes many other fault codes to occur. When diagnosing errors, this error code should be corrected first. This error code indicates that the Orion BMS has determined … Continue reading

Posted in Trouble Codes, Troubleshooting | Comments Off on P0A04 – Open Wiring Fault (or “Open Cell Voltage Fault”)

P0A03 – Pack Voltage Mismatch Error

This error code indicates that the voltage measured by the total pack voltage sensor did not match the sum of the individual cell voltage measurements. This error is triggered when the difference in voltage between the two measurements exceeds the … Continue reading

Posted in Trouble Codes, Troubleshooting | Comments Off on P0A03 – Pack Voltage Mismatch Error