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Expanding MIMA with the Distribution board ( users projects )
Battery packs exposed
What actually goes wrong with the batteries????
Graphing the cycle
Smart discharger
Time to get serious about determining what actually fails in the sticks
Subpack 1
Subpack 10
Subpack 11
Subpack 12
Subpack 13
Subpack14
Subpack 15
Subpack 16
Subpack 17
Subpack 18
Subpack 19
Subpack 2
Subpack 20
Subpack 3
Subpack 4
Subpack 5
Subpack 6
Subpack 7
Subpack 8
Subpack 9
Zap test of MP 10
Keeping Warm In New England
Plugging into the SUN
Making a small solar concentrator
MIMA for all Honda Hybrids
Building MIMA and the plug in adapters
Converting a telephone truck to electric
DIY dual pulse Capacitor Discharge Spotwelder
Replacing gasoline with solar electric lawn equipment
Tapping into the Wind
How to stop the aging process DIY
What is Genesis One?
MIMA Install Day 2005 a Big Success!
Building a hybrid car grid charger


> Is it too late? I think not if we act now > Mikes Blogs > What actually goes wrong with the batteries???? > Graphing the cycle

Graphing the cycle

Graphing the cycle
charge discharge charge

The new code has the ability to log both the charge and the discharge, and with the automatic discharger, we can do automatic cycles to fully exercise the pack right on the bench or in the car.
The graphs show the log from cycling the prius pack below. Notice how we start sampling the discharge at 6 second intervals instead of minute intervals so we can more accurately and quickly detect a cell drop out. seems to work well. The graph also shows how the plateau detection with a 10 minute sample time does not do as good of a job as the 30 second sample timer. Also the graph shows how one can set the cutback higher to speed the charging process, but better not go so high that the topping never starts. A good reason to graph the charge so you can better determine the best cutback for your pack.
I cut the topping short on the final charge as it was 2AM and I needed to go to bed.
Will run another cycle


> Is it too late? I think not if we act now > Mikes Blogs > What actually goes wrong with the batteries???? > Graphing the cycle
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