If your cell is charged to less than 3.6V, or you've just discharged it, the next step is to recharge it up to around 3.7V where the RAID card should be able to pick up and carry on.

Use a Constant Current power supply, set to a maximum voltage of 3.7V and a maximum current of around 500mA. Connect the output directly to the cell's terminals and switch on. Monitor the cell's temperature while charging and reduce the current if it starts getting warm to the touch.

Once 3.7V is reached, allow the current to drop below 100mA and switch off the power supply. The battery is now charged and ready to go back on the RAID card.