Is it better to charge the thermos or fill it with water? Which is better, a hot water bottle filled with water or an electric hot water bottle?

Many friends who work outside, or children who are still at school, will encounter the problem of cold hands, so they all want to buy a hot water bottle to keep warm. Then a friend asked whether it was better to charge the hot water bottle or to fill it with water, and which was better to fill it with water or an electric hot water bottle. Let me give you a brief introduction.

First of all, talk about the traditional water-filled hot water bottle. This hot water bottle adopts the traditional irrigation method, and it can be heated by pouring boiling water into the hot water bottle. Its use method is simple, easy to operate and no danger. Let the boiling water cool slightly to about 70 degrees to prevent burns, and don't fill it too full. If it is too full, it will easily explode, and almost 80% will do.

Secondly, the rechargeable warm-up bag evolved from the traditional hot water bottle is very convenient and fast, and can be recharged at any time. The charging time is very short, about 10 minute, and the heat lasts for a long time. However, when charging, try not to let it leave your sight. It will be safer to look after it yourself and avoid unnecessary accidents.

Finally, water-filled hot water bottles and electric hot water bottles are both good and convenient. Everyone should buy according to their own needs. Children can buy hot water bottles filled with water at school, which will be safer. Adults can choose hot water bottles filled with water.