You may notice that the Fatshark battery has DO NOT BALANCE CHARGE on the balance Lead.
This is because the battery has its own balance circuit so it does not need balance charging.
You may get an error that says “Balance Connect Error”
Some chargers still need the balance lead connected to the charger even though it’s not balance charging.
The correct way to charge is LIPO charge and 1C would be 1.6amps like below picture
If you have an advanced charger, it may also check the resistance. The battery will show high resistance, this is normal because of the balance circuit and you may ignore it.