-Can the power adapter charge lithium batteries and batteries

Can the power adapter charge lithium batteries and batteries
author:enerbyte source:本站 click111 Release date: 2024-06-04 11:39:24
abstract:
Can the power adapter charge lithium batteries and batteries? There are two common types of batteries on the market: lead-acid batteries and lithium batteries. The charger is specialized, and the adapter generally refers to the power supply. Can the power adapters of these two types of batteries be...

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Can the power adapter charge lithium batteries and batteries? There are two common types of batteries on the market: lead-acid batteries and lithium batteries. The charger is specialized, and the adapter generally refers to the power supply. Can the power adapters of these two types of batteries be mixed together? Can the power adapter charge lithium batteries and batteries? The editor of this article will tell you the answer.

Can the power adapter charge lithium batteries and batteries?

The power adapter can charge the lithium battery, but it is not fully charged. Three lithium batteries require 12.6V to fully charge, and it is best to use a dedicated charger for charging.

If the voltage of the power adapter matches, the battery can be charged. If the battery is 12V, a charger slightly larger than 12V is required, usually 14V~14.5V. There is not much demand for current. As long as it's not too high. If it's low, it's also possible. The speed of battery charging depends on the output current of the charger. Low current rechargeable batteries have a longer lifespan.

What are the effects of using a lead-acid power adapter to charge a lithium battery?

Firstly, we generally do not recommend using it in this way as it is a bit dangerous. Although chargers without pulse function can theoretically charge lithium batteries, they may still harm them. Although lithium batteries have protective plates, they can theoretically provide protection during overcharging or discharging. If the overcharging protection voltage is frequently triggered during charging, the output voltage setting of this charger will be incorrect. After such a phenomenon occurs, the outdated battery will always lag behind. Try not to raise the protective board as high as possible. Because the battery is used in the battery box, the consistency status of the battery is usually not visible. I don't know when, but if there is a problem with its consistency, the voltage will increase by a few volts.

In fact, in order to overcome the large internal resistance of lead-acid, the lead-acid battery charger increases the charging voltage by about 5% during constant current charging. That is to say, when you choose the same voltage charger to power the lithium battery, the voltage will be slightly higher because the internal resistance of lead-acid batteries is large. In order to achieve efficiency, constant current charging increases the constant voltage voltage during constant current charging, which is very unfavorable for lithium batteries.

Of course, if the battery is improved, it can be used to charge lithium batteries, such as removing the low constant voltage stage circuit and pulse circuit.

What is the difference between a lithium battery charger and an adapter?

Lithium battery chargers should have current and voltage control functions that are suitable for battery charging, and be able to float charge and then turn off when fully charged. The basic structure of a lithium battery charger is the same as other rechargeable battery chargers, consisting of three parts: 1. shell, 2. input/output lines, 3. circuit board, heat sink, and various electronic components. In principle, it is composed of a stable power supply and necessary control circuits such as constant current, voltage limiting, and time limiting.

Adapters usually only provide a DC power supply of around 5V and several hundred mA, which needs to be matched with a charging control circuit (such as a mobile phone) to charge. The adapter can be an independent hardware interface device or an information interface. The commonly used adapters include power adapters, USB and serial port adapter devices, etc.

The main function of an adapter is voltage stabilization, which generally consists of a casing, a power transformer, and a rectifier circuit. Suitable for power supply conversion devices for small portable electronic devices and electronic appliances. It is a type of auxiliary equipment widely used in mother and child computers, game consoles, language repeaters, and so on.

From this, it can be seen that lithium battery chargers include adapter functions because they have an additional control circuit compared to adapters. For example, a mobile phone charger includes three stages: constant current, constant voltage, and trickle charging, which are determined by the charger's own design. On the other hand, the charging control of a laptop is within the computer's body, and the adapter only plays a stabilizing role, without the constant current and voltage limiting design that these chargers have.

In summary, the power adapter can charge lithium batteries and batteries. But adapters and chargers are two different things. Lithium ion batteries and battery chargers include the function of power adapters, but the charger also has control circuits such as constant current and constant voltage that meet the charging characteristics.


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