10440 Charging Current

• Mar 24, 2012

• #1

kumowoon1025

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I was looking for a new charger for my 10440 batteries, and found this: TrustFire TR-001 Multi-Purpose Lithium Battery Charger - Free Shipping - DealExtreme.

It says the charging current is 500mA, and it also says it will charge 10440 batts.

I thought I should only charge 10440 batts at a maximum of 200mA's? Will this charger work fine, or fry my 10440's?

 

• Mar 24, 2012

• #2

Sigurthr

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AFAIK you can safely charge any LiIon at 0.8C or less. Some cells can take 1C safely as well. It's more important that the voltage NEVER exceed 4.199V.

 

• Mar 24, 2012

• #3

kumowoon1025

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Sigurthr said:

AFAIK you can safely charge any LiIon at 0.8C or less. Some cells can take 1C safely as well. It's more important that the voltage NEVER exceed 4.199V.

Click to expand...

C? as in coulombs? Do you mean coulombs/second? How is that different from Amperes?

Does that mean 500mA is a safe charging current for 10440 cells?

 

• Mar 24, 2012

• #4

Sigurthr

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Hehe, no but that would be awesome if I converted to coulombs and used that unit.

C as in capacity in mAh. I didn't think it was an officially correct usage of C to describe cell capacity until I saw it on manufacturer data sheets.

For example in a 2800mAh 18650, 1C would be 2800mA. 0.5C would be 1400mA or 1.4A.

 

• Apr 5, 2012

• #5

J

joemmonster

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dont worry, also, some of 10440 batteries are circuit protected..