New consulting relationship with GreenTecAuto begins
What actually goes wrong with the batteries????
Using the charger to run a deep discharge
Time to get serious about determining what actually fails in the sticks
A better way to test a full pack on the stick based level
What happens when you discharge completely?
Setting up to watch the sticks
First results
Recovery after the deep discharging.
More deep discharging.
Connecting to all the sticks with the multimeter test fixture
A graphical look at silver pack deep discharge 2
Testing a pack of new MaxIMA sticks with the multimeter test fixture
The next discharge after a regular plateau based recharge
Subpack 1
Subpack 2
Subpack 3
Subpack 4
Subpack 5
Subpack 6
Subpack 7
Subpack 8
Subpack 9
Subpack 10
Zap test of MP 10
Subpack 11
Subpack 12
Subpack 13
Subpack14
Subpack 15
Subpack 16
Subpack 17
Subpack 18
Subpack 19
Subpack 20
A look at todays Hybrid and EV battery packs
Battery packs exposed
Keeping Warm In New England
Plugging into the SUN
Making a small solar concentrator
Building MIMA and the plug in adapters
Converting a telephone truck to electric
DIY dual pulse Capacitor Discharge Spotwelder
Getting in shape while making electricity
Replacing gasoline with solar electric lawn equipment
What is Genesis One?
How to stop the aging process DIY
MIMA Install Day 2005 a Big Success!
Building a hybrid car grid charger
Tapping into the Wind
Expanding MIMA with the Distribution board ( users projects )

What happens when you discharge completely?

What happens when you discharge completely?
nearly complete discharge of the old pack

After some on line discussions about the effects of reverse charging the cells, and my experiment where I purposely reverse charged a cell to see what happened, and found little change in the cells capacity. I decided to take the sticks that I just pulled from my silver insight pack, and do an experiment.
This photo is the progression from when the discharger detected the first cell drop out in stick 3, until I stopped the discharge when the pack had discharged to 30 volts. We can see that the rest of the sticks gradually dropped out in a random way, with several of the sticks being completely discharged and reversed charged.