One of the most common types of batteries is lithium-ion. Due to this battery's lightweight and rechargeable nature, it is often used in laptops, smartwatches and mobile phones. However, lithium-ion batteries can be dangerous. When exposed. Car batteries cannot be sent through our network – either within the UK or internationally. For a full list of restricted items, take a look at our. As standard, we provide £50 of contents cover on all parcels sent within the UK. However, if you are sending a higher value electrical item, for example, a laptop or mobile phone, we recommend taking out extended contents cover to the value of the item. You can do this. Another common type of battery is Alkaline. These are used in small electronic devices and comes in many different shapes and sizes, including AAA and AA. There are no restrictions when sending alkaline batteries in the post, either within the UK or. Due to their hazardous nature, parcels containing batteries must be packaged carefully to avoid damage during transit. When sending a battery in.