smart batteries
TRANSCRIPT
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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