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| 10000 mAh MI Power Bank |
If we are travelling,if we struck at place where charging is not available and you have to make important call or email what you will do.
Many times we forgot charge mobile So to solve this problem we have power bank.which can charge our mobile.
So power bank is must thing in our mobile accessories as important as mobile.
But before looking at Best Power bank we must know which features, specifications it should have in your power bank.
There are number of companies available in market don't go for cheaper one but quality ones.
Factors should consider before buying power bank :
1. Security :
You would have thought that Capacity is important but I think Security is most important factor Should consider for safety of your mobile and power bank it self.
Overheating ,overcharging, fluctuation in Voltage can damage your mobile
In some cases your power bank will get exploded.
So always buy which following features :
Over Voltage Protection :
it maintain both input and output voltage in case of fluctuation.
Over charging protection :
It saves power bank from overcharging by maintaining current ,voltage at acceptable limit or permissible limits.
Over temperature protection :
It shut down power supply when temperature exceeds safe value to avoid high temperature.as it can damage circuit.
Check that your power have FCC,ROHS hallmark to check that it is original.
2. Your Need :
First decide what is your requirement whether you require it for daily use for only emergence ,back up purpose or only to use while travelling.
If you are using it daily then Buy 20,000 mAh power bank. For Normal use buy 10,000 mAh power bank.
3. Capacity :
You should buy at least Double mAh power bank than your mobile battery. If suppose your mobile has 3000 mAh battery then you should buy at least 10000 mAh power bank.
So it can charge your mobile at least twice at one charge although it have 10000 mAh battery but it not work at full or 100% efficiency.
10000 mAh power bank actually have 8000 mAh capacity due Efficiency losses.
4. Led Indicator :
It required as it will show how much battery is remaining helps in planning.
Always remember if you are not using power bank but still try to charge it otherwise it will become in operative.
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| power bank with led indicator |
5. Type of cell :
Normally power bank comes with 2 type of batteries one Lithium ion battery and Lithium polymer battery.
Lithium ion is cheaper and Lithium polymer is somewhat costly but have two times charging capacity.
6. Output Slots :
Buy power with 2 output ports as you can two mobiles at a time.
Normally one port 1 A output which gives slow charging. Other 2 A output port which supports fast charging.
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| power bank with 2 output ports |
7. Quality over Price :
Don't buy cheap power bank because they don't have overheating,overcharging stopping features.
8. Conversion Rate :
No power bank is 100 % efficient as conversion losses are there,heat loss,resistance loss also occur.
Can work at 80 to 85% capacity 10000 power bank have actual capacity of 8000 mAh,20000 have 17000 mAh capacity.
9. Size :
Prefer handy,small size as it will easy to carry.
10. Power bank charging time :
Look whether it supports fast charging how much time it take fully charge.
Normally it takes 7 to 8 hours.
Some precautions should take while using:
1. Always use USB connector which comes power bank don't use another connector.
2. If you don't use power bank regularly still charge it otherwise it will become inoperative.
3. If it overheats remove connector.
4. Don't use mobile when you are charging mobile using power bank.
I strongly recommend you to use power bank in emergency situation not regularly.
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