Archived from the Tools In Action forum (Power Tools). This thread is read-only.
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.
Very informative post. Thanks for sharing 🙂
I love this kind of information!
Metabo and Bosch 50 amps continuous from the high power 3ah and 4ah battery packs.
Now here’s the boring science bit, just like starting your truck more amps means more power and more power is never a bad thing for trade tools. 🙂
50 amps, is that all? lol. J/k
As an electrician the more amps the better for me!
the 18650’s have to read about 3.7V or you would not have an 18V tool. 5X3.7 is about 18V while 5X 1.4 is 7V.Doesn’t add up.