Unusual battery

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Unusual battery

Postby Andrew Davie » Tue Jul 18, 2017 12:16 am

I found the size and low voltage of this battery quite curious. It was in a box of new-looking units at the local tip-shop. Just 1.5V but 250Wh.

battry.jpg (205.18 KiB) Viewed 690 times

Here's the manufacturer's page.
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Re: Unusual battery

Postby Dave Moll » Tue Jul 18, 2017 5:37 pm

It looks like a modern equivalent of a "Flag Cell", as used in telephony (particularly local battery setups) in days gone by:
Flag cell.jpg
Flag cell.jpg (52.84 KiB) Viewed 675 times
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Re: Unusual battery

Postby Steve Anderson » Tue Jul 18, 2017 6:31 pm

Even so, 250Wh when converted into the more familiar Ah is 167Ah. Most car batteries are around 1/2 to 1/3 that, though at 12V.

As it's called a 'Datacell' which implies RAM memory back-up, WOW! That must have been one heck of a memory array!

This appears to be their very simple web-site...


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Re: Unusual battery

Postby ppppenguin » Wed Jul 19, 2017 12:56 am

My first thought was also a latter day FLAG cell but clearly not so.

Looks like they're designed for some specialised applications where a battery change would be very hard: http://www.datawell.nl/
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Re: Unusual battery

Postby Klaas Robers » Thu Jul 20, 2017 8:37 pm

Wow, a Dutch company and specially made French batteries. This makes me proud of Europeese cooperation. Apparently batteries "Made in Brittain" are no more needed. They can go out.
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Re: Unusual battery

Postby Canberry3 » Sat Sep 09, 2017 2:25 pm

Got some useful info from the page. Thank you!
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