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Common Problems About Power Banks
1. Powerbank unable to charge my tablet?
a) Powerbank with 2A output to charge tablets. While some tablets can accept lower input (1A or 1.5A), the charging is slower and sometimes can only be charged when the tablet is in sleep mode.

b) Some tablet is cables might not be compatible with power bank due to different cable chipset design. For Samsung Galaxy Tab in particular, we recommend using the cable and connector meant for power bank (comes with some power banks.

Heloideo White USA AC plug power bank with charging cable 




2. Powerbank battery drained off very fast?
a) Generally, a well maintained powerbank can retain up to 80-90% of its original capacity. Please check your device (phone/ tablet) original battery capacity and the powerbank capacity. Please also see answer 1.a. above.

b) The number of times a powerbank can charge your device very much depends on the capacity of both the powerbank and the device. Examples of calculation shown in answer 2 above.

c) Please do not attach cables to the powerbank when not in use.

Heloideo Black European AC plug power bank with charging cable 


3. Unable to turn on my powerbank?
a) It is possible that your powerbank is fully drained. Please charge your powerbank. The indicator will start blinking when the powerbank receives sufficient power.

b) It is possible that your powerbank went into sleep mode. The powerbank will automatically cut-off the power and go into sleep mode when it detects possibility of over-charge/ over-discharge/ short-circuit. This is sometimes due to faulty cable issue. Please activate the sleeping powerbank by charging it with its wall plug (3-pin plug) and use a good condition cable.

Heloideo Black European AC plug power bank with charging cable


4. What is the lifespan of the powerbank?
Generally, a properly maintained powerbank can retain up to 80-90% of its original capacity at 400-500 charge and discharge cycle (charge then discharge = 1 cycle, regardless of whether you charge/ discharge it partially or fully). Until your power bank no longer holds sufficient charge to meet your needs, you may choose to purchase a new one.

And there it is, Powerbank a very useful devices that really help in time of needs, particularly when you are on outdoor or during calamities when powergrid are down.

Hoping you like it & hopefully helped those who are interested in doing or building their own powerbanks.

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Dos and Don’ts When You Use a Power Bank  Like Us on Facebook Modern gadgets are power hungry. Our increasingly busy lives mean a dead battery can leave you disconnected from life, work, and your daily routine. Portable chargers and power banks will keep you from getting stranded when you’re on the go and without a convenient charging source. They are ideal for recharging your smartphones and similar devices wherever you are when you find yourself low on power.


As with all electrical and electronic devices, it’s important to treat them with respect and care to ensure they continue to work properly and safely.
With this in mind, we advise you to think about some general Dos and Don’ts to help keep you safe when using power banks and portable chargers:




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