New battery technology promises quarter-hour charge

NEWS
Rechargeable batteries that charge in minutes and last up to four times longer than current cells are coming soon, according to American battery giant Rayovac. The new technology is based on existing nickel metal hydride (NiMH) chemistry -- the most widespread in general use -- but adds in-battery monitoring and a new basic design. Batteries based on the technology will be included in products from next year, with retail rechargeables in standard sizes available in shops by the end of 2003. The batteries will recharge in quarter of an hour, says the company, and can be charged to 90 percent of their capacity in ten minutes. Ordinary rechargeables would dramatically overheat and be damaged by such treatment: an in-battery pressure sensor in the new design monitors the precise state of the chemical reaction that takes place during charging. The system, called in-cell charge control (I-C3), is currently going through patenting and has not been fully disclosed. "Charging so quickly makes a huge difference to portable devices like cellphones, portable games and music players," Jim Pilarzyk, manager of OEM Engineering at Rayovac, told ZDNet UK. "You can just top your charge off in minutes, whenever's convenient." He added that because the batteries did their own monitoring, the charger could be a lot simpler than existing fast chargers. "The cells are a lot more resistant to abuse (than existing rechargeables)," he said. The new batteries also have a much lower internal resistance, so they can deliver a lot more power in short bursts -- giving up to four times more pictures in digital cameras, says the company. In other applications such as PDAs and mobile phones, they have a more conservative 20 percent advantage over existing batteries, with AA cells having a capacity of 2000 milliamp-hours (mAH) compared to the normal 1600 mAH. They do have one drawback, Pilarzyk said. "Like all rechargeables, they self-discharge when not in use -- around 5 to 6 percent loss of charge per day, compared to existing NiMH batteries at 3 to 4 percent." The new batteries will work perfectly well with old chargers, he said, but without the fast charge advantage. Pilarzyk declined to discuss safety issues, although some form of short-circuit protection will be required to prevent catastrophic overheating in fault conditions given the batteries' ability to produce very high currents. When launched, the batteries will be available world-wide under the Rayovac name.
If it moves, we cover it. See ZDNet UK's Mobile Technology News Section for the latest news, reviews and price checks on mobile phones, PDAs, notebook computers and anything else you can take away. Have your say instantly, and see what others have said. Go to the Telecoms forum. Let the editors know what you think in the Mailroom.

Post your comment

In order to post a comment you need to be registered and logged in.

You can also log in with Facebook. Log in or create your ZDNet UK account below

  • Login

Will not be displayed with your comment

By signing up for this service, you indicate that you agree to our Terms and Conditions and have read and understood our Privacy Policy. Questions about membership? Find the answers in the Community FAQ

Get ZDNet UK's daily newsletter

Enter your email address to sign up

ZDNet UK Live

Moley

@GrueMaster. I prefer horses for courses rather than one size fits all. I, and I suspect most other computer users, do not really wish to have...

2 hours ago by Moley on A tale of two distros: Ubuntu and Linux Mint
greycynic

The product that scares me every time I have to use it is the Office 2007 version of Excel. The first bug that I found was applying the median...

2 hours ago by greycynic on Ten flawed products that derail productivity
GrueMaster

Nice review and very informative. One thing I'd like to add (in reply to whs001's 1st question), the main reason to have the same interface from...

3 hours ago by GrueMaster on A tale of two distros: Ubuntu and Linux Mint
Frederick Wrigley

I'be been using Mint 12 since the RC came out, and I am far more happy with the Cinnamon, the Mate, and, yes (with extensions), theGnome 3...

4 hours ago by Frederick Wrigley via Facebook on A tale of two distros: Ubuntu and Linux Mint
bdantas

Excellent article. One small correction, though--although a fresh installation of Linux Mint 12 will, indeed, provide the user with a version of...

5 hours ago by bdantas on A tale of two distros: Ubuntu and Linux Mint
Alan Ralph

In related news, the ISPs club together to get the members of the Home Affairs Select Committee (ya goofed on that part, ZDNet UK) copies of "The...

5 hours ago by Alan Ralph via Facebook on MPs urge ISPs to take down terrorist material
Alan Ralph

In related news, the ISPs club together to get the members of the Home Affairs Select Committee (ya goofed on that part, ZDNet UK) copies of "The...

5 hours ago by Alan Ralph via Facebook on MPs urge ISPs to take down terrorist material
Moley

For Gnome 2 die-hards, it is possible to add icons to the bottom panel (or top top panel, if you prefer) which provide the exact Gnome 2...

6 hours ago by Moley on A tale of two distros: Ubuntu and Linux Mint
ramwellian

Your comments would seem pretty naive and immature. Your 'solution' appears to be, "gee, let's all just give in to the hackers and give them...

6 hours ago by ramwellian on Cloud computing security: no more oxymoron?
BugStalker

"Interesting thought ... If you installed Win7 as a dual boot on a machine that previously only had Linux, and it wrecked your Linux installation,...

7 hours ago by BugStalker on Windows 7 Declares War on GRUB
whs001

This is an excellent summary of Ubuntu and Mint and the interface differences between them. Most such articles take a very partisan position for...

7 hours ago by whs001 on A tale of two distros: Ubuntu and Linux Mint
Moley

@ewallace. Not so clear. Anyone can obtain the text, for example from here http://www.ustr.gov/webfm_send/2379. I support ACTA so long as it and...

7 hours ago by Moley on ACTA: Facts, misconceptions and questions
45283

I think WinRT is fantastic. I just wish it was an option for people that didn't want to go through Microsoft's App Store with its attendant...

10 hours ago by 45283 on Why Windows 8 needs architectural hygiene for WOA
Burn-IT

Nine people? £30m? Who's back pocket is that lot going in? And IF they say it is for new buildings, what about all the ones the government has...

11 hours ago by Burn-IT on Police set to launch three £30m e-crime hubs
ewallace

Just to be clear, nobody knows what is in the text of ACTA, here is a photograph of the text of ACTA http://twitpic.com/8h9iju as submitted to the...

11 hours ago by ewallace on ACTA: Facts, misconceptions and questions
fgvrg56

Unfortunately main issue is that ASUS is refusing to accept that they make some mistake on this version of asus Transformer prime. 1 - GPS sensor...

13 hours ago by fgvrg56 on Asus Eee Pad Transformer Prime Wi-Fi & GPS problems?
Ben Woods

@Marcus A fair question. Just talked with Archos which said it was working on an announcement for next week....

14 hours ago by Ben Woods on Archos confirms G9 Ice Cream Sandwich update schedule
Marcus Karlsson

Any update on this, considering the claimed "first week of February"?

15 hours ago by Marcus Karlsson via Facebook on Archos confirms G9 Ice Cream Sandwich update schedule
apexwm

Bill Goodrich : Just as al_langevin pointed out, with Windows Server 2008 there is no Services for Macintosh anymore. It's gone, not available....

23 hours ago by apexwm on Windows Server 2008 drops the ball for Mac compatibility
txtrainguy

Replying to an old topic that I'm currently facing with my CEO (who is on a Mac). Our servers are primarily Windows Servers, office is about...

1 day ago by txtrainguy on Windows Server 2008 drops the ball for Mac compatibility