Why Should LiFePO4 Batteries Be Discharged After Firmware Update

LiFePO4 batteries are a type of lithium-ion battery that is known for its long lifespan and high discharge rate. However, even these batteries can be damaged if they are not properly maintained. One of the most important things you can do to maintain your LiFePO4 battery is to discharge it after a firmware update.

In the case of LiFePO4 batteries, there is an additional reason to discharge the battery after a firmware update: to reset the battery's protection circuit. The protection circuit is designed to prevent the battery from being overcharged or over discharged, but it can sometimes be reset by discharging the battery to a low level i.e. 20% SOC.

Here's the reasons why you should discharge your battery after a firmware update:

• To flush out the old firmware. When you update the firmware, the battery's internal management system (BMS) is also updated, as such the old firmware would not have been completely removed from your device. It is simply overwritten by the new firmware. So, the old firmware files may still be lurking in your device's memory. Discharging your battery can help to flush these old files out, freeing up space and improving your device's performance.

• To recalibrate the battery. When you update your firmware, the battery's calibration data may be reset. This data is used to track the battery's capacity and health. Discharging and recharging your battery can help to recalibrate this data, help to flush out any residual power and ensuring that your device is accurately reporting the battery's remaining charge.

• To fix battery drain issues. If you experience battery problems after a firmware update, such as shorter battery life or unexpected shutdowns, discharging the battery can help to identify the problem. If the battery problems disappear after the battery is discharged and recharged, then the problem is likely due to a software issue that can be fixed by updating the firmware again. Finally, discharging and recharging your battery can help to fix these issues by clearing out any corrupted battery data and allowing the new firmware to properly calibrate the battery.

It is important to note that you should only discharge your battery to a level that is safe for the battery. For most lithium-ion batteries, this means discharging the battery to no lower than 20%. 

So once the firmware Update is complete please discharge your Hubble Battery down to 20% SOC and recharge back up to 100% SOC using AGM Voltage settings. 

The best way to discharge a battery fast, is to either use a specialised lithium charger with a refresh functionality. Another way is to run a load continuously until the battery reaches the desired threshold (i.e. 20% SOC) bottom balance; before attempting a full recharge (i.e. 100% SOC) top balance. 

In Closing:

It is important to note that LiFePO4 batteries are generally very resilient and can withstand deep discharges without damage. However, it is still best to avoid fully discharging them if possible, as this can shorten their lifespan. The recommended DOD (Depth of Discharge) for LiFePO4 batteries is 80% to 90%. This means that you should only discharge them to 20% or 10% of their capacity (please consult your battery manual). 

By following this guideline, you can help to ensure that your LiFePO4 batteries last for many years to come.