Smart Batteries

Zahid Ghadialy CTO, eXplanoTech & 3G4G Blog

@zahidtg Date: 18th Dec. 2013

Different generations of batteries, improving capacity and better for environment

Lead-acid batteries

Ni-Cad (Nickel-Cadmium)

NiMH (Nickel-Metal-Hydride)

Li-Ion (Lithium-Ion)

Li-Poly (Lithium-Polymer)

Samsung Galaxy S3 - Li-Ion 2100 mAh battery

iPhone 5S - Built-in rechargeable lithium-ion battery

iPad - Built-in 25-watt-hour rechargeable Li-Poly battery

Batteries have been improving

A lot still needs to be done!

Lots of advancements in the battery technology

Solar cell under the screen

Future generation Li-Ion battery, 2000x more powerful

The more the number of pixels, the more the need for computation

iPhone 5S (1136x640), Galaxy Note 3 (1080 x 1920 pixels)

True colour (24 bits) requires 3 times the computation that of 256 (8 bits) colours

Galaxy Note 3 (16M colours)

The bigger the screen size, the more power it needs

Galaxy Note 3 (5.7”), iPhone 5S (4”)

More processors, need more power

Dual core (2 processors), Quad core (4 processors)

More radios suck more power

Wi-Fi, 3G, 4G, Bluetooth, NFC, etc.

We need bigger and better batteries

Car comes with no battery. User gets a contract with the battery provider. Renault reserves the right to prevent the battery from charging at the end of the rental period or if you fall behind on paying the rent for the battery.

Intelligent Battery: Renault ‘Zoe’

A battery that can communicate with other batteries and make decisions based on these

communications and a pre-defined set of rules

What is a ‘smart’ battery?

The connected individual Headphones connected to

phone or tablet

Phone

Tablet

Other connected device like Laptop

Headphone needs power - 1 I am low on

power, who can I borrow it from?

Communication

Headphone needs power - 1 I am low on

power, who can I borrow it from?

I can lend some

Take as much as you need

Headphone needs power - 2 I am low on

power, who can I borrow it from?

I am 50% full but have a higher

need, sorry

Sorry, I am exhausted

Priority

Priority Rules

Headphone Tablet Mobile Other device

Headphone

Tablet

Mobile

Other device

Not possible

Possible if high priority – Automatic

Possible if high priority – Manual

Possible

Borrow power from

Pictures Source: OKJ Discoveries

Wireless (Inductive) charging

Limited time and power availability

Devices decide among themselves who should charge when, how much, etc.

Charging devices I will charge

first as I have highest priority

I don’t need much power but

I can wait

I will go next

Let me know when you are all

done

Early morning: X goes for a jog with smartphone and headset. The smartphone has GPS tracker and fitness app – highest priority

Late morning: X goes to work listening podcasts on the smartphone

At work: X needs to work on laptop, should always be at least 50% charged

In evening: X is coming back from work, speaking on phone to his friends and family. Phone and Bluetooth headset needs to be charged

Late evening: X is watching TV/Video on his tablet.

Context is important too

Charging priority based on context

Headphone Tablet Mobile Other device

Early Morning

Late Morning

At Work

Early Evening

Late Evening

Priority Rules

Lowest priority Highest priority

Borrowing power from friends / colleagues

Please lend me some power,

phone about to die

Sure, will lend you power to make this one

call

Facility to charge devices in public places is a boon for end user and good advertisement for companies and airports, etc.

Wired charging stations are being replaced by wireless ones

Competing for power at public spots

‘Smart charging’ can give higher priority to subscribers, devices of certain brands, devices with lowest charge remaining

Competing for power at public spots – Next Gen

Our interest is working in these future technologies in partnerships.

We generate ideas and help our partners translate these ideas into reality.

What am I doing here?

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