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Topic: Battery choice/source help? (Read 2061 times) previous topic - next topic

mauried

Mostly correct.
A batteries capacity , in this case 110 mah , is rated at a particular discharge rate, and its usually 0.1C , but LIPOs are better, hence in this case 0.2C.
This means that if you discharge the battery at 0.2C,  22 ma it will take 5 hours to discharge the battery.
If however , you discharge the battery at 2C, 220 ma, the battery will be discharged in less than 30 minutes.
The differance is made up because of the fact that the battery heats up when discharged at a high rate,
so the heat energy is lost , and not available as electrical output.

xl97

ok..thanks..  (glad Im finally grasping it a bit more)  LOL..


to continue on now.. (looking for a solution)

then this battery would work? (LIR2450)


http://www.megabatteries.com/item_details2.asp?id=14443&sid=shopgoogle&gclid=CLvPzunjqrUCFfBDMgodKV8AyA
http://www.powerstream.com/p/Lir2450.pdf

but 'same' battery linked to here.. says MAX DISCHARGE is only 35mA?

http://www.batteryspace.com/li-ionrechargeable2450buttoncellstwolr245036v120mah24dx5tmm043wheach.aspx

how can a noob like myself be sure?  (or am I mixed up again?)  lol

(not that these need to be rechargable or anything.. just looking for a 'fit')

thanks!


mauried

No, those batteries wont work as they arnt LIPO, but most likley Lithium Ion manganese.
Coin type cells dont have hi discharge capability, as they arnt designed for that type of purpose.
Forget using Coin type batteries.

xl97

ok..

so is this datasheet just 'bs' then?

http://www.powerstream.com/p/Lir2450.pdf


or am I reading it wrong/missing something?

(even though now I understand forget about coin cell.. I am just curious as its still confusing compared to other (same) pieces of data, in other datasheets/websites I have seen/we've been reviewing)..


thanks.

mauried

You would have to try one and see.

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