Using this 3V rechargeable lithium battery is simple. First, make sure the circuit board is powered off. Then, use the solder tags to mount the battery horizontally on the circuit board as needed. When recharging, use a suitable charger designed for this type of battery. Keep in mind that you should not expose the battery to extreme temperatures or moisture, as this can affect its performance and lifespan. For maintenance, check the solder connections regularly to ensure they are secure. If you notice any signs of damage to the battery, such as swelling or leakage, stop using it immediately and replace it.