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Lithium Ion cells


OzTools

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I took cells out of my bad Ridgid pack and found 5x LR1865BE  cells inside:

 

http://www.master-instruments.com.au/cgi/ajax/get_file/60601/1

 

These are 1.4Ah cells, 45 grams each, max. discharge current is 25A.

 

At 3.7V nominal voltage the pack can get 463W at the max recommended current. 

 

The 150 cycles at 15Amp discharge stated in the pdf is disappointing. In these ideal lab conditions (23 degrees celsius) the pack capacity would go down to 60% of the original capacity after only 150 cycles.

 

The pack is 2-3 years old so now they might be using different cells. 

 

Here is another cell for a comparison, Emoli IBR18650BC:

 

http://www.molicel.com/ca/pdf/Certificates/High%20Power%20Cells/IBR18650BC/DM_IBR18650BC.pdf

 

 

These are 1.5Ah cells, 45 grams each, max. discharge current is 30A.

 

 

At 3.7V nominal voltage the pack can get 555W at the max recommended current. 

 

They claim about 77% capacity at 20Amps with 1000 cycles. 

 
 
 
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