When the hand warmer is charged, does it make a sound like water boiling away?

Yes, that's the sound it makes when it's heated.

The liquid in the hand warmer bag is sodium acetate, a supersaturated solution, which is not stable because the concentration of the supersaturated solution is too high. When the metal sheet inside is twisted, a slight vibration is enough to crystallize the solute into a more stable solid. However, the process is exothermic, so the hand warmer starts to warm up.

As long as the hand warmer bag is heated in boiling water for about 10 minutes, the condensed solute will dissolve again; This is due to the fact that at high temperatures, the solubility of solutes increases. In the process of dissolution, the solute undergoes an endothermic reaction and becomes a supersaturated solution again.

When the hand warmer is charged, it makes a sound like water boiling inside. Because the principle of the hand warmer bag is to boil the water inside and then use the leather outside to keep it warm. So there was the sound of water boiling.

Precautions for the use of hand warmers:

1. When charging, you can gently shake the bag to avoid uneven water temperature in the bag and make the water temperature in the bag uniform; The surface of the hot water bottle can not be pricked with a sharp object, and it can be beaten strongly to avoid damage caused by rupture and leakage.

2. When using the hot water bottle for heating, be sure to tighten the cover, and it is best to put a protective cover on the outside of the hot water bottle to prevent the water from flowing out and scalding.

3. Pay attention to the water temperature should not be too hot, the time should not be too long, and the hot water bottle should be placed 10 cm next to the feet, and not on the feet; It is best to put it in the quilt before going to bed and take it out when you go to bed.

4. There are many varieties of hot water bottles, and the quality is uneven, so it is recommended that consumers choose well-known brands when buying, and do not buy "three no" products. At the same time, you should also carefully read the usage methods and precautions on the product manual to better understand the characteristics of the product, such as the instructions written "It is strictly forbidden to charge and heat in the state of half filling water and not exhausting the air, so as to avoid unsafe accidents such as bag expansion and cracking", "The power supply must be cut off during the charging process".

It will drop, but a good hand warmer, the sound is not loud, the ears can be heard, and the average quality is a lot louder.

Generally cheap will be. That's not the case for high-end goods.

It will continue to be loud and loud.

Hot water bottles have become an indispensable necessity in our winter, but when we charge the hot water bottle, there will be a sizzling phenomenon, everyone will wonder if this phenomenon is normal, why does such a crackling sound occur? Now let's take a closer look at what the reason is.

First of all, it is normal for the hot water bottle to sizzle during the heating process. From a physical point of view, the physics of the inside of a hot water bottle is taking place, the conversion of electrical energy into heat energy. This is a very normal physical phenomenon.

However, if you find that the hot water has expanded during the heating process, then you should immediately unplug the power supply to prevent the hot water bottle**.

In the process of charging, there will be a crackling sound, this is the boiling sound when the water is heated, and the power supply is not related, you don't have to worry too much, really don't worry about cutting off the power immediately, if you buy a qualified hot water bottle, then there will be no potential safety hazards in the heating process, you can use it with confidence.

In general, it is recommended that when you use this rechargeable hot water bottle, you should buy a hot water bottle with good quality to avoid potential safety hazards, and cut off the power supply in time to ensure your own safety.

Yes, the electric hot water bottle uses high energy storage hydrothermal fluid as the heating medium, has no protruding high temperature point in the electric heating state, feels soft and mild, and has a precise temperature control device.

Charging is to insert the plug into the upper socket of the water storage electric heater, turn on the power supply, wait for the bag body to rise slightly, first cut off the power supply and then unplug the bag plug, and then drain all the remaining air in the bag until there is water seeping out of the water injection port and then continue charging until the specified temperature. The normal charging time is 5-10 minutes.

Charge for 5-10 minutes, short hot days and long cold days. When the green light goes off and the red light turns on, it means that the temperature has reached the set value, so unplug the power cord immediately! In actual use, the feel of heat prevails, and there is no need to wait for the temperature control device to move, and when the bag body rises, immediately unplug the power cord!

Yes, the electric hot water bottle generally uses a high energy storage pyrogen as the heating element, and the liquid semiconductor in the bag is evenly heated and stored for energy storage, and it is normal to make a sound when heating.

It's been a long time, it's normal to have a zizzle sound, you have to shake the hot water bottle a few times, shake the mercury away, and it's fine.

What brand of hot water bag do you use, the warm baby I use has a sound, first it was small, then the sound became louder, and then there was no sound, and the light was not lit and you could use it. The current charging hot water bag is filled with oil, and there will definitely be a sound when charging, which is a normal phenomenon.

The sound of the newly bought hot water bottle is very small when charging, it can be said that it is very weak The longer the use time, the louder the sound of the hot water bottle when charging, especially when the hot water bottle is used for more than half a year, the water bag will expand very seriously and accompanied by a sound similar to boiling water The hot water bottle in this situation is recommended not to continue to be used to avoid danger Especially in families with children.

It's right to have a sound, can there be no sound in a boiling state? As long as the temperature can be automatically powered off, there is no problem, and there is no expansion, so you can use it with confidence, and it's okay.

Don't use it if it's loud, I've heard that there is a precedent of **, take a look, change it.

When the hot water bottle is charged, the reasons are as follows; The sound of the internal liquid boiling belongs to the normal joint discussion phenomenon, not the fault quietly, for safety reasons, you only need to unplug the power supply at this time. The electric hot water bottle uses a high energy storage heating agent as the heating element, and the liquid semiconductor in the bag is evenly heated and stored for several times, and it is normal to make a sound when heating and dodging color, and it is a liquid power generation conductor inside, which will automatically heat up when electrocuted, just like the principle of boiling water in a kettle at home! When the liquid boils, bubbles are generated, so there is a gurgling sound.

At this time, you can unplug the power supply to avoid overheating, which will cause uneasy steam staring at the whole thing. I hope my answer is helpful to you, and finally I wish you good health and a happy mood again!

The squeak of the hot water bag charging is the sound of the internal liquid boiling, a normal phenomenon, you can use it with confidence, if you are really afraid, you can pull it out after hearing the sound, theoretically it should have reached the boiling point at this time, which can play a role in warming your hands;

The working principle of the electric heating bag is improved on the basis of the solid electric heating cake, using the electrode heating method, high-quality temperature control and thermal fuse.

Double temperature control insurance, the thermostat when the temperature of the liquid in the bag reaches 65 degrees under normal circumstances.

It will automatically cut off the backup circuit and stop heating, and once the temperature control fails, the thermal fuse will cut off the power supply and terminate the heating, and the product needs to be replaced with a new one.

There is no big danger, my electric heater will ring, but it heats up very quickly and is very practical, I have been using it for two years and it is very good now. However, it is not excluded that there are hidden dangers, and some electric heating bags will also have plug leakage and smoke when charging. But that smells good, you can find it right away, and the power will be cut off immediately.

Overall nothing was a big deal.

It's best not to use it! It may be due to long-term charging, the circuit has a short circuit or leakage, although the surface can still be used, but there is already a potential danger, if it is just the sound of electromagnetic induction, then it is fine! In short, pay attention!!