CONTENT
- 1 Schematic diagram of the charger
- 2 Universal charger for all types of batteries: technical features
- 3 How to choose a universal battery charger: expert advice
- 4 What is Charger Boost Mode: How It Works
- 5 Applications of the universal charger
- 6 Universal Wireless Charger (BZU): Best Models
- 7 Universal charger "Frog" for phones - overview
- 8 Where to buy a universal battery charger - price overview
Schematic diagram of the charger
Sometimes you need to charge the batteries of various devices, but there is no suitable charging, a universal battery charger will come to the rescue. The scheme of its operation is quite simple and compatible with almost any device. The universal charger has the following scheme of work.
For different types of batteries, it is enough just to change the charge current. It should be 0.1 A of the battery capacity, then with such a charge, the battery will last for about 800 charge / discharge cycles, depending on the type of battery. The charging time, taking into account the current 0.1 A from the battery capacity, will be 10-12 hours.
Acid batteries need to be charged with a choice of discharge 10 times less than other devices. This is done using the S2 and S3 toggle switches on the adapter, where the current strength is 0.1 and 0.25 A, respectively. If both levers are connected, then the value is set to 0.35 A. From this it follows that the acid battery must be charged under the action of a current strength of 1, 2.5 and 3.5 A.
Universal Battery Charger Specifications
| Battery types for recharging | Ni-MH, Li-lon, Ni-Cd |
| Charge voltage for: Nimh and Nicd LiIon | 4,5/4,95 4,¼, 2 |
| Maximum current (A) | 1,4 |
| Working temperature range | -40 to + 85 ° C |
NOTE!
It is better to connect a multifunctional charger from a 220 V network, provided that grounding is installed or a voltage stabilizer is installed. Otherwise, you risk getting a failed battery and broken charging due to a voltage failure.
Universal charger for all types of batteries: technical features
What parameters are best to consider when choosing a universal charger.
| Parameter | Description |
| Type of batteries and accumulators | The device can be combined (when it is acceptable to use different types of batteries, including finger-type) or standard, which is designed for one carrier. It often charges AA or AAA-type rechargeable batteries, as well as mobile, crown, laptop (if there is a USB port) and others. |
| Current strength | This parameter can be changed manually depending on the battery requirements. However, the higher the parameter, the faster the battery will charge. It is noted that online charging will shorten battery life. |
| Number of charging channels | The more outputs for various installations, the more multifunctional the device is considered. It happens that purchased models have channels with different amperage. |
| Availability of additional features: | Discharge: In the vast majority of cases, batteries are difficult to discharge to a minimum before charging. This function in the adapter is very convenient, as it allows you to completely discharge the battery. Display: The screen displays all the characteristics of the flowing charge, including amperage, voltage and operating time. Overheating and error protection: In the event of power surges, the device will help to avoid damage to the battery, as it stabilizes the charge channel. Also, the function is able to prevent the battery from burning out if it is installed in the wrong polarity. |
| Saving function | You've probably heard about the Boost mode in the charger. What is this, every electronic knows. This is a function that switches itself off after a full charge of the battery, saving energy and preventing the battery from burning out. At the same time, it charges the battery for a certain time. |
Some types of adapters are capable of operating on a non-traditional 12V network. This installation is practical, as it can be carried with you and even connected to a car cigarette lighter.
IMPORTANT!
To keep the battery in good condition, charge it fully for 14 to 16 hours once every few weeks, at least once a quarter.
If you do not have the opportunity to periodically charge the battery for such a long time, then try to use the battery at a moderate temperature and avoid deep discharges.
How to choose a universal battery charger: expert advice
If you are faced with an acute question of choosing a charging for a battery, you need to decide exactly where it will be used. In addition, pay attention to the following points:
- manufacturer and its relevance. The more well-known the brand of charging, the lower the likelihood of becoming a victim of counterfeiting. Today on the market you can find installations from UFO, Sony, Samsung, Varta and others. These models are popular thanks to user reviews;
- the integrity of the packaging and the operability of the adapter. When choosing, be sure to make sure that the device is not opened before you. The buyer must independently verify this, check the device for operability in the store;
- nominal capacity of the installation. It is important that this parameter meets your requirements. 2000-10,000 mAh is enough to charge mobile devices, and a laptop and other equipment will require a large capacity;
- charging power - this is an equally important parameter when choosing. Allowable battery charge current - 10% of its capacity;
- the presence of a USB port. This feature is now quite comfortable, as it allows you to charge traditional home electronics;
- be sure to decide on the type of adapter: can be portable, impulse and passive. The latter is ideal for cases where it is necessary to convert the current for high-quality and safe battery charging;
- choose a suitable charging scheme for the installation. There are options that operate with constant current and those that operate with constant voltage. The first type does not guarantee a safe charge, since it does not protect against overheating, and the second is unable to fully charge the battery. Accordingly, the combination adapter should be selected.
These guidelines will help you find the most efficient and durable adapter for any device.
What is Charger Boost Mode: How It Works
Almost any charger with multiple functions has a quick charge (BOOST) mode. Such a function can help out if there is no time for deep charging. For example, if your phone runs out during an important call, and it takes at least 30 minutes to turn it on. In such a situation, it is better to use the BOOST mode, it will help reanimate the residual battery charge for a while.
Applications of the universal charger
There are several types of battery chargers. Most often these are ordinary, household models.
Universal charger for all types of phones
It is installed in a plastic case with a convenient lever for adjusting the size of the phone battery. The device has the following characteristics:
- input - 100-240 V, alternating current with a frequency of 50/60 Hz, 150 mA;
- output: DC2 V 400 mA ± 50 mA, USB port - 1250 mA;
- there is short circuit protection;
- used for batteries with a width of 32 to 55 mm.
An EU adapter is included with the adapter.
Universal laptop charger
Such devices come in different capacities and a different number of functionalities. Consider the Ginzzu GA-4290U model. The device can charge up to 9 types of laptop batteries. The adapter contains two inverters: one is powered by a car, the other is intended for the electrical network. The device is suitable for all types of modern computers, its power is 90 watts. The set comes with a USB cable.
Adapter STM Electronics Ltd is equipped with nine ports for connecting adapters designed for different laptop models. The device provides protection against voltage surges and overheating of the battery. The total charging power is 90W. Included with the device are connectors for computers from different companies.
Car charger
The universal car charger has a traditional USB port through which you can connect a smartphone, laptop, MP3 player. Such gadgets can simultaneously charge up to three devices. However, this will happen over a long period of time, as opposed to working on the electrical network.
Universal charger for car batteries
Various brands of charging structures can be used for vehicle batteries. Some of them work automatically, while others require mechanical action.
| Charger type | Main characteristics |
 | Automatic charger. It starts to work at a current value of 5 A. It has a prestart and cyclic mode. Differs in the ability to fast charge. |
 | The highly specialized device is suitable for all types of batteries. There is a drawback: the adapter is unable to charge deeply discharged batteries. |
 | Manual charger. Suitable for charging high power batteries and motorcycle batteries. |
 | A starter and charger that has a lot of power. The current strength is 13 A. Charges installations from 140 A / h. Suitable for 12 and 24 volt batteries. The budget option, while having sufficient capacity. |
Adapters for other equipment can differ in their practicality, mobility and versatility. On the market for electrical appliances, you can find installations that are suitable for powering the batteries of mobile phones, radios, laptops and telephones. These adapters are suitable for charging portable table lamps.
Universal Wireless Charger (BZU): Best Models
Wireless charging is a comfortable gadget that should be present in every home. With it, you can recharge various devices. We offer several useful modifications of chargers.
| Model | Description |
 | The device is designed for different types of phones, mainly powered by IPHONE. Comes with a protective case and a removable battery. |
 | A device in the form of a phone stand. Has a quick charge function and also allows you to use your mobile phone while charging. |
 | A universal adapter that can charge three cell phones at the same time. The device works wirelessly or with a USB cable. |
 | The ultra-thin design of the power bank prevents overloading of the phone, and also features the ability to cut off power when the battery percentage reaches 100. |
Universal charger "Frog" for phones - overview
A compact charger called "Frog" has been serving people for many years. Its advantages are compactness and versatility. With it, you can charge the battery from a mobile phone of any model, you just need to properly push the antennae of the device.
The device is made in China, has several indicators that show the beginning of the charge in red (second indicator), when the charge ends, the green indicator lights up (third light). The gadget is able to independently determine the polarity of the connected battery, so you don't have to worry about whether it was installed correctly. "Toad" is suitable only for batteries with a capacity of not more than 2000 mAh at alternating current up to 200 mA. Charging on this device takes more than 1.5 hours. You can buy a universal charger "Frog" both in online stores and in any radio kiosk.
Where to buy a universal battery charger - price overview
It is best to buy a universal battery charger in a specialized store. There is a better chance that the device has a warranty protection and will not break after a couple of weeks.
IMPORTANT!
Be sure to check the charger at the time of purchase. Within two weeks, you can return any product without giving any reason.
But buying online can be frustrating. Read product reviews carefully and do not forget to require certificates. On average, the purchase of a battery charger for cars will cost from 900 to 3,000 rubles. The price depends on the feature set and the manufacturer's brand. A universal charger for smartphones can be purchased at a price of 250-500 rubles, a charger for a laptop can be purchased for 900-2,500 rubles.
If you purchased such devices, share your opinions in the comments to the article. Let's understand together the features of the functioning of devices and their advantages for a modern person.