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You need to put a decent load (200w+) on each of the modules for 2-3 minutes and check the before and after voltage to find the voltage drop for...
X2 The discharge portion of testing is key to finding weak modules.......many overlook this critical step.
How low would you suggest to take the voltage when doing a discharge w/ 60W bulb? I assume the goal is to never allow it to hit 0V or will that...
Great insights, that puts my concerns to rest given the results you've seen. Yes, mini VCI works great on the highlander too and all my...
Yes, I knew about the HA recommendations but was wondering why others were not using the same techniques when dealing with capacity loss on...
I know most are talking about overcharging at low current rates for long periods of time but what about deep discharging? Would bringing the...
Smart idea on using the constant current LED power supplies, I'd love to see one of these built if you ever get around to it.
Great pics of your setup, thanks. Does that EC570 charger allow you to adjust both voltage and current or just current? (looks like just either...
Brad, this sounds like a professional shop.......what equipment are you using for grid charging and discharging?
I'll be curious to see how your method works as you document and take photos. That charger didn't exist back when I did my rebuild (this is why I...
Like you mentioned above, here you can see where my modules all tested fine for capacity using a pair of Hitec X4 AC chargers. (Quad chargers are...
Steve has some good points in here but a few items concern me as well. Everyone doing this as a DIY project (ie no professionals) will likely be...
Are you sure you have a legit Imax B6 charger because I know that charger has been knocked off extensively and I would be concerned about...
Load testing is definitely a key step many people miss when rebuilding their battery packs. Thanks for the update but wow, that's a really low...
Settings just to double check...... NiMH, 7.2v, 7000 mAh, 2.0A charge, 1.0A and 6.0v discharge, DCHG>CHG 3 NiMH Sensitivity: Default Temp Cutoff:...
Did you set the safety timer to off? I would also lower the capacity cutoff to around 6000 to start and then move to 7000 if the modules are in...
Matt, you are using the exact same process I used on mine (ie set a minimum health for modules in the pack and anything less gets replaced) and it...
I can vouch for this.........my modules were all fine voltage-wise and it wasn't until a load was applied that you saw the "bad" one appear.
I used a nut driver with rubber lineman's gloves so there wasn't any concern when I took it apart (removing series bus bars, they need to be...
Not sure on the stud size but I use the yellow ring/spade terminals and they worked great. I would not use alligator clips for testing because...
