Smart phone app to test external battery capacity!?

vpsaline

Newly Enlightened
Joined
Nov 13, 2009
Messages
18
I'm wondering if there exists a free app to test the capacity of an external battery with device similar to Thrunite C2 Mini? I have a TON of salvaged 18650s and no way of testing their capacities.

Thanks!

thrunite-c2-portable-power-bank.jpg
 

jeff51

Newly Enlightened
Joined
Apr 9, 2012
Messages
41
Location
Middle of Texas
Some hobby chargers have smartphone apps. Check out RC forums for that kind of info. By the time you get something like that setup, it would be far easier to buy a charger with testing functions that can test 4 batteries at a time. Check out the Batteries Included forum.
I have the LiitoKala Lii-500, for $30 it can do a charge, discharge test and tell you the capacity and internal resistance. But there are a sea of other choices. Hope this helps.
 
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