Gen 1 Traction Battery Modules needed.

I've got modules. 4 matched ones.
7?? That must be quite a bad pack!

 

I've got 34. They were reconditioned about 2 years ago. I have since checked 8 core packs and not found a single good module. I'll need to to take a look at them before I could sell them.

 

Yep, that is now the norm for Gen I modules to be total crap. And yes anything last tested two years ago needs to be rechecked.

Brad

 

You still have some learning to do.

It is not a simple matter of "good" modules. Of course "bad" modules have to excluded. That would include any that have self discharged below 7.2 volts. They are junk that will not hold a charge and will have near zero capacity.

You really need to measure the capacity of your modules. Most of what I have tested the last couple of years have been in the 1700 mAh range. I have seen cars run on such low capacity modules. The exceptional outliers will have 3000 mAh capacity.

A 3000 mAh module is not a "good" match for a pack full of 1700 mAh modules. They will not play well together and the pack will soon fail.

All these numbers are way below anything I would use in a Gen II pack.

Brad

 

The Reaktor will do this for you. With just one it will take some time. Charging three in series at 1 amp for three hours works out to one hour per module for charging. At a 20 amp discharge to 6 volts each module will take about 6 to 9 minutes. A 20 amp 1000 mAh recharge adds another 3 minutes. So each module is going to need about a hour and 15 minutes on the Reaktor.

Do not over charge or discharge too quickly. A 1 amp charge for three hours is relatively safe. If the modules can't handle that they are most likely junk. Watch for heat and swelling. Program good safety limits in to the Reaktor.

I wish it was possible to cycle a 1700 mAh module a few times and turn it in to a 5000 mAh or even a 3000 mAh module. It just is not possible.

Brad