₦airaland Forum

Elvin001:
This is an eye opener... Thanks Mr OP

Wlc man

You have an original real capacity 10,000 mAh power bank, and that should charge your 1500mah phone about 6 times, right? Well, here is where the confusion begins.
What the advertised capacity actually tells you.
The rated capacity is what is actually inside the powerbank, the physical battery.
https://lh3.googleusercontent.com/-6HMbmjLtBZA/WbMf_m1o1uI/AAAAAAAAAIc/6eXwg6vWGZ0QpPFSJ--47uTPJVeFliIgwCHMYCw/s640/%255BUNSET%255D.png
Inside a 10,000 mAh power bank.

This powerbank has 4 3.7V 2,500mAh batteries, together that equals 10,000mAh and this is correct.
But USB is 5V!
Inside powerbanks are 3.7V batteries, but the USB standard is 5V. Between the battery and the USB socket is a conversion circuit and this changes the 3.7 V into USB friendly 5V. When converting into a higher voltage, you must also convert the mAh into the new voltage.

How to calculate theoretical USB output capacity

A simple equation can be used to convert the 3.7V into 5V.
ACTUAL 5V mAh = 3.7 X Advertised Capacity /5

For a 10,000mAh powerbank – 3.7 X 10,000 / 5
= 7,400mAh
So a 3.7V 10,000 mAh powerbank really only supplies 7,400 mAh at the 5V USB connection. So straight out of the box is a 23% reduction in the stated mAh. This is not the actual experienced level as there is also conversion loss.

What is conversion loss?

As you use your powerbank the circuit inside that converts 3.7V to 5V USB uses some energy and also creates heat. During this conversion, you lose some extra mAh. There is a wide range in conversion efficiency and most brands don’t state the losses, Xiaomi has prized themselves on their conversion efficiency chips which are up to 98% efficient, meaning you only loose 2% off your battery power in the conversion. Some others can consume as much as 10% during conversion.

Why don’t they just state the actual output?

They don’t need to as technically that is what’s inside the box and most people have no idea. By not giving the actual 5V output brands can reap these benefits;
>Manufacturers can have a higher number of mAh for their powerbank and sound more powerful.
>It avoids the talk or testing of conversion loss and brands with low efficiency conversion chips can still market them in the same league as other efficient brands.

Some manufacturers will state in the manual or in small print on the device but most will not state anything other than the 3.7V mAh. As a general rule I would recommend taking 25% – 30% off the advertised capacity straight away and then you have a more realistic indication of performance.

https://lh3.googleusercontent.com/-fCQGwKZ2sQI/WbMgAttInRI/AAAAAAAAAIg/w1BtvsFXE8080bzOygmBZ0Zc_Lu7GSEbQCHMYCw/s2560/%255BUNSET%255D.png
This power bank actually states both capacities, you wouldn’t notice it though unless you are one of the people who actually read product labels.

This one has 16,000 mAh but only has 10,200mAh at 5.1V.
It is a very gray area and not common knowledge but I hope this has shed a bit of light on how powerbanks are advertised and busted the classic assumption that dividing the rated capacity by your phone battery capacity is an accurate measurement of actual number of recharges, in reality, it is far from it.
You are now a powerbank expert and next time you are on the prowl for a new one, you'll act as one.
http://obototo..com/2017/09/power-bank-capacity-secret-marketing.html?m=1

Sniper12:
Blogging don cast. Too many wannabes in the game. Less dan 5% of nigerian bloggers are actually making money. Save ur data and time abeg

So true my brother, With hardwork OBOTOTO will surely join the 5%

Someone asked this question on Facebook, but Npower couldn't give a direct answer..
Some N-tax applicants were contacted via sms to go to Abuja for a 5 day training, does it mean there's no hope for those who are yet to be contacted?

Npowerng, come o

Phone cases are saviours, no doubts. I know the sentence in italics is relatable given the number of times your phone case have saved your smartphone’s screen from having that gruesome crack that every mobile phone user detest, making you want it the more.Or is it that time when your friends or a group of strangers gave beautiful complements about the aesthetic on your phone case? Yeah I know, complements like that are things we live for, and that is also another reason to own a stockpile of phone cases. This article even says a phone case could block radio waves from a smartphone from entering and damaging your body.Amazing, isn’t it?But would you believe me if I told you that your phone case could be slowly killing your device, its components and even you the smart phone owner?Yes. All the above advantages are true. But just like there are two sides to a coin, there’s also another side to smartphone cases that you don’t know. Let’s take a careful look at the other side smartphone cases to have a clearer picture, shall we?
1. Cases can damage your phone battery
When you fit your phone case onto your smartphone, it reduces the amount of air (or “fresh air” as it is commonly phrased) that your smartphone is exposed to, heats up your smartphone, heat up your battery, and subsequently shorten your battery life span.Let’s compare it to wearing a cloth. Imagine you wearing a T-shirt, the amount of air your naked body will be exposed to will reduce to some minimal. Now compare it to wearing a sweater or hoodie, your body warms up. Same thing applies to smartphones or any other phone.Should you need to use a phone case, ensure you opt for light or thin phone cases (just like the T-shirt example). Ensure your phone case is not made of/from big, thick or bulkymaterials that would generate the sweater-like kind of heat to your device and cause damage to your battery.
2. Some phone cases contain harmful chemical
HCQS.cc once reported the result of a CCTV study which revealed that certain mobile phone cases release poisoned chemicals which can result in diseases easily following usage or exposure to high temperature for an hour or more.
3. Phone cases affect network reception
Some smart phone cases have also been shown to hinder proper network reception when worn on the phone. This report was specific to the type of case that could block your network signal. Apparently, only cases with magnetic clips have such network hindering ability.So, does your mobile network give you a tough time connecting either during a call or internet session, you should try removing your phone case.There you have it, some reasons why you should ditch your phone case and have a fresh feel of you device. It’s worth it don’t you think?
http://obototo..co.ke/2017/09/your-smartphone-case-is-killing-you-and.html?m=1

Gionee is warming up to unveil its newest smartphone in the M series Gionee M7 in china soon. It said that the phone will have full screen display with ultra-narrow bezels, similar to its teaser.
The company has officially teased a promotional poster of upcoming Gionee M7 which shows the device with no bezels at sides while very thin bezels at the top & bottom just like the other full-screen devices.The teaser talks about collaboration with bicycle company Ofo for “doing things” and comes with a tagline of “M7 Joint card invites you to see the world in full screen” , clearly indicating that the phone is designed with full-screen as confirmed by the phone image in the teaser too.
Other details has revealed on GFxbench listing revealed a 6-inch (2160 x 1080 pixels) Full HD+ screen with 18:9 aspect ratio, latest MediaTek Helio P30 SoC, 6GB RAM, 64GB storage, Android 7.1.1 (Nougat), 16-megapixel rear camera and an 8-megapixel front-facing camera.
Take this info with a pinch of salt until when launch.

http://obototo..com/2017/09/gionee-m7-coming-soon.html?m=1

BOKO HARAMIC TRICYCLE

Buhari is a fool

U don't have money to rent an apartment for her, but ua complaining

Lol

Cotisure:
They are all odd numbers except 14 which is an even number. Therefore, the answer is 14

You don't answer a question without a question

npowerng:
What programme ? and what's your full name and phone number?

Ntax
Obot Akpan
08135333678

brimoknight:
The answer to that question is (a) 14

Where did you get the question?

thesmallgod:
another funny one All these can be classified as reptiles except _________. Select one: a. snake b. cat c. rat d. lizard

Lol

austinosita:
Na wa o!

Are you sure its not your network/browser?

I don't think, I used ucbrowser with 3G network.
After submitting, I had to try second attempt, and
I was given different set of questions.

The wahala now b say I no knw d one dem go take

austinosita:
Are you serious?! 27 is also odd na!

You didn't even bother to check if there's a question.

Op, just blank am

I blank am tey tey my brother, dem just wan fall my hand Sha.. Lyk the one below too, though I selected D

sirqeeboi:
The answer is 17...just odd one out...

LOL... Where did you get the question?

I was actually thinking the question will look like this, "How many days make up 2 weeks?"

Nice one... Npowerng what's the answer to this your question?

Npowerng abeg com xplain o

T

Abeg where my straw?

and Ov2.5

Awnnn! Very informative.. Op tnx for dis post

Black is Beautiful

Lol.. Meanwhile

ayourbamie:
Check pharmacy or local chemist around, you will get Hydrogen Peroxide

Tnx bro