WattFlyer RC Electric Flight Forums - Discuss radio control eflight - View Single Post - how exactly does the balancing in the FMA Cellpro PowerLab 8 charger work?
Old 04-15-2011, 08:22 PM
Howard Matos
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Originally Posted by miernik View Post
I understand all this, however this is for testing individual cells (for better statistical value) and not the pack as a whole. I only want to use the balancing to avoid buying 8 chargers which would be too expensive.

I want to have 8 different readings of capacity at the end of each cycle, not just 1.

This is not about testing the pack, its about testing lots of individual cells, but cycling them 10000 times at 4C and measuring after how many cycles each cell died, and making statistical analysis on that.

So I need to have each cell discharged to exactly the same voltage to have useful data. I am looking forward for the new firmware, without it the charger is not capable of making the cycling test I need.

One more thing: does the charger log all the charging history internally (I want to have all possible information that the charger can displayed logged) or do I need to have a computer hooked-up all the time to log the data, otherwise it's gone?

Although the newest firmware will support balanced discharge on this Monday, it will not be possible to measure individual cell capacities, as this would require 8 independent charge circuits with current measurement on each cell; effectively 8 independent cycling devices.
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