Why can t the super intelligent power supply of Romas?

The power supply of the Romax power bank suddenly did not light up, and it could not be charged, what happened?

1. The power switch of the power bank is faulty. You can short the two pins of the switch to check whether the indicator light can be lit normally. If it can be lit normally, it means that the key switch is damaged and can be replaced; If it does not light up, it means that the fault is in the subsequent circuit.

2. Booster plate failure. The detection of booster plate faults can only be measured by a multimeter. Press the power switch, the multimeter hits the DC voltage level, the black watch pen is grounded, and the file simple red watch pen starts from the positive pole of the voltage output terminal of the power bank, and measures the voltage of the relevant component pins in reverse.

If the voltage is measured to a certain component, then the faulty component is the component that is its backstage and can be replaced. In fact, the power bank is a large-capacity portable power supply that is convenient and easy to carry. It is a portable device that integrates power storage, boosting, and charging management.

The charging plug of the power bank itself can be charged to the mobile device through the AC power supply and has its own power storage device, which is equivalent to a hybrid of a charger and a backup battery, which can simplify the device of a charging plug compared to the backup power supply, and compared to the charger, it has its own power storage device, which can provide backup power for digital products when there is no direct power supply or when going out. The cell protection circuit is composed of three parts: overcharge protection, over-discharge protection and over-temperature protection, and HAT2027, R5402, and self-recovery fuse build triple protection, which greatly enhances the safety of lithium cells. The charging management circuit adopts CN3066, which divides the charging process into four parts: trickle charging, constant current charging, constant voltage charging and maintenance charging, so that the mobile portable power supply can reserve energy to the greatest extent.

1. Problems with data cablesRoma power bank needs to use a data cable in the process of charging, if the data cable has a poor contact problem, it is easy to cause the power can not be flushed, at this time you can replace the data cable to charge.

2. The charging plug does not match:If the current of the charging socket is relatively small, the light will be flashing during the charging process, but it cannot be charged, you can replace the charging head with 2A, so that you can see that it will be fully charged soon.

3. There is a fault in the cell circuit of the power bankIf the internal circuit of the battery cell is short-circuited or damaged, it is difficult to charge it, and in serious cases, the battery will be found to bulge.

Precautions for the use and maintenance of Romax power bank

1.Do not charge for a long time.

Charging for a long time may cause the power bank to overheat, and if you encounter a three-no product, it may also trigger**. Therefore, it is best not to charge it too long, generally speaking, it is enough to be fully charged, and do not forget to unplug the power supply.

2.Avoid temperatures that are too high or too low.

The power bank will also be afraid of cold and heat, and when the outside temperature is too low, the battery will work unstable and the discharge will not be sufficient. High temperatures, on the other hand, can shorten the life of the battery and circuit board, damage the battery, and cause some components to deteriorate.

You can't take a bath while charging and watching TV with a power bank. When traveling, do not expose the power bank to the sun for a long time.

3.Do not disassemble by yourself.

The electrolyte in the power supply of the power bank is strongly alkaline and decomposes when exposed to water. The electrolyte volatilizes and dissolves on the surface of the human body, decomposing lithium hydroxide, which makes the human body uncomfortable, and may damage the eyes when the concentration is high.

In addition, when the lithium battery electrolyte encounters a large amount of water, it will quickly separate and release heat, resulting in **. So if you're not a professional, don't dismantle the power bank because you're curious or want to fix it yourself.

4.Avoid heavy pressure, strong vibration.

Usually be kind to the power bank, don't treat it in a rough way.

If it is a fall from a height, or a heavy object is hit, it should be used with caution to avoid a short circuit when the power bank is used.

5.Use the original plug as much as possible.

Try to use the original charging plug, or buy a charging plug with the same parameters as the power bank. The power bank is the same as the mobile phone, especially when charging, it is necessary to use the charging cable and adapter with the same parameters to ensure its safety.

Summary. 1. The charging display mode of Romax mobile power supply is indicated by the onion and off of the LED light.

2. Battery charging display mode: when charging, 0% 25% one light is on; 25% 50% one solid and one flashing; At 50% and 75%, two are solid and one is flashing; 75%, 100%, three solid and one flashing; At 100%, four are solid.

3. Battery discharge display mode: 75% 100% when discharging, four always on; At 50% and 75%, three are always on and one is off; At 25% and 50%, two are always on and two are off; At 1% to 25%, one is always on and three are off; <10% three off and one flashing. General power banks can display the power more accurately, such as ZS6300 and so on have this function.

How does the Roma power bank show that the charging is successful.

1. The charging display mode of Romax mobile power supply is indicated by the onion and off of the LED light.

2. Battery charging display mode: when charging, 0% 25% one light is on; 25% 50% one solid and one flashing; At 50% and 75%, two are solid and one is flashing; 75%, 100%, three solid and one flashing; At 100%, four are solid.

3. Battery discharge display mode: 75% 100% when discharging, four always on; At 50% and 75%, three are always on and one is off; At 25% and 50%, two are always on and two are off; At 1% to 25%, one is always on and three are off; <10% three off and one flashing. General power banks can display the power more accurately, such as ZS6300 and so on have this function.

Whether the charging light is flashing or charging.

Yes. Ok thanks.

You're welcome, goodbye.

Here's why:

1. There is poor contact, and the general line contact is not good, which will cause the indicator light to change.

2. If there is no external charging, it is a power bank.

Faulty. There is a problem with the internal circuit control.

3. Replace the charging cable to determine whether the internal or external fault is determined.

4. It needs to be replaced and repaired after the sale, or scrapped and renewed.

Romans. It is the leading brand of Shenzhen Romasi Technology, which is an innovative technology brand that designs and sells intelligent power products. Roma is independent in product design.

and flat network direct sales, committed to providing global consumers with high-quality products that can be easily owned.

Roma Shi is a professional smart power brand, Roma products cover: power supply, car charger, adapter.

three major categories; Romax offers smart power products. As an ultra-intelligent power supply, Romax products can be used for any brand of smartphones, tablets and laptops.

Charge. In 2013, Romax achieved the first place in the sales volume of mobile power supply in China, and now Romax is moving towards the world's No. 1 professional intelligent power supply brand.