Yes
Can dry batteries be recharged
Yes.
The principle of charging is that the charger voltage is higher than the battery voltage before it can be charged. The greater the difference in electromotive force between the two, the faster and larger the charge. Charging current, so the general charger 24 V. The maximum voltage (without charging) is 28 V and 60 A refers to the maximum output capacity. When charging, the charger already has a charge. The voltage at this time is the voltage of the battery being charged. , and the current of 40a is the charging current.
Can dry batteries be checked in?
Dry batteries can usually be checked in with baggage, with the exception of lithium-ion batteries .
Lithium-ion batteries whose total lithium content by mass does not exceed 8 grams can be taken with yous;
lithium-ion batteries whose total lithium content by mass exceeds 25 grams must be carried with you; be transported as cargo;
Lithium-ion batteries exceeding 160 Wh cannot be carried on board.
The difference between dry cells and lithium batteries
1 Different materials
1 . Batteries: This is a battery that uses manganese dioxide as the positive electrode material, lithium battery metal as the negative electrode material, and non-aqueous electrolyte solution.
2. Dry Battery: This is a voltaic battery that uses some absorbent (like sawdust or gelatin) to turn the contents into a paste that will not spread.
2. Different principles
1. Lithium battery: It adopts spiral winding structure and uses very thin polyethylene filmand highly permeable. is spaced between the positive and negative electrodes.
2. Dry battery: the carbon rod is used as the positive electrode and the zinc cylinder is used as the negative electrode, which converts chemical energy into electrical energy and supplies it to the external circuit. In chemical reactions, because zinc is more active than manganese, zinc loses electrons and becomes oxidized, while manganese gains electrons and is reduced.
3. Different uses
1. Lithium batteries: widely used in mobile phones, laptops, power tools, electric vehicles, emergency power supplies for street lights, and navigation lights, small household appliances.
2. Dry batteries: suitable for flashlights, solid-state radios, tape recorders, cameras, electronic clocks, toys, etc., and also suitable for variousareas of the national economy such as national defense, scientific research, telecommunications, navigation, aviation, medicine, etc.
Which is better between dry batteries and lithium batteries in fingerprint locks?
Both are good, but their field of application is different.
A dry cell is a type of voltaic cell in which an absorbent (such as sawdust or gelatin) is used to transform its contents into a paste that cannot be spilled. Used as a power source for lighting flashlights, radios, etc.
Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material. Primary batteries containing aqueous electrolyte solutions are different from rechargeable batteries, lithium batteries -ion and lithium-ion polymer batteries.Lithium batteries can be roughly divided into two types: lithium metal batteries and lithium ion batteries.
Lithium-ion batteries do not contain lithium in a metallic state and can be recharged. Dry batteries contain heavy metals like mercury and lead. Since it is a primary battery, it will be thrown away after use, which can easily cause battery contamination. Lithium batteries do not contain harmful metals. Lithium batteries have fast charging capabilities and long life, a level that dry batteries cannot achieve.
Today's fingerprint locks are all battery powered, but some fingerprint locks are lithium battery powered, using rechargeable technology and reusable batteries, while Most fingerprint locks use an adry feed, simply replace it if it works. discharged. So, which of these two types of batteries is better for fingerprint locks, and which is more reliable? Let the editor break it down for you below!
Comparison of two batteries
1. The dry cell specifications are exactly the same. Although there are AA and AA batteries, all brands of AA batteries and AA batteries have the same specifications. The same thing, you don't have to worry about whether this company's battery can't be used by this company. So even if the fingerprint lock is discharged, you can quickly buy a new battery and replace it easily. But if there is a problem with the lithium battery, if you want to buy it, you need to consider various parameters and make sure it matches the fingerprint lock, which will make the purchasing process verycomplicated if you are unlucky. , the lithium battery with the previous specifications will no longer be produced by your own company. The fingerprint lock has become a pile of scrap metal.
2. Typically, a fingerprint lock's battery is replaced almost every six months to a year. User don't need to worry at all until the fingerprint lock battery is low and no longer rings. , the lithium battery discharges relatively quickly, so users need to replace the battery frequently. Charging the fingerprint lock is very inconvenient. Additionally, if users are a little busy and forget to charge, they will often find themselves in a situation where they can't get home.
3. Although lithium batteries can be recharged and appear to be more cost effective, if you calculate carefully, this is not the case: fingerprint locksFingerprint lock generally use 4-8 dry batteries, and a fingerprint lock can use up to 4-8 dry batteries per year. It only uses 16 batteries, and even 16 Nanfu batteries cost only 32 yuan. The cheapest lithium battery costs around 60 yuan. The lifespan of this lithium battery is less than 2 years, plus the cost of each charge. So do you think lithium batteries are really profitable?
4. Lithium batteries also suffer relatively large losses during frequent charging and discharging. It is very likely that the battery is leaking and causing an internal short circuit in the fingerprint lock. If you encounter a poor quality lithium battery and it explodes while charging, it is not impossible.
Editor's Summary:
In general, the use of dry batteries in fingerprint locks is more convenient, less inconvenient, more cost-effective and safer thans lithium batteries. As far as current technology is concerned, the use of lithium batteries in fingerprint locks is impractical, expensive and unsuitable.
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