On 5/7/2025 5:53 PM, John Lussmyer via EV wrote:
On 5/7/2025 3:46 PM, Bill Dube via EV wrote:
When you get the electrolyte levels above the all the plates, I would
suggest discharging each of the cells slowly using a light bulb or
some other gentle load. (Or a nifty electronic cell/battery cycler,
like a Cell Pro https://www.electrodynam.com/store/product241.html or
something like it.)
Yeah, I was wondering if I should do another "take it all to zero"
again since it's highly probably the cells are at different states now.
Before doing that, I did some experiments with actually driving the
Taylor-Dunn cart.
Level ground is fine, 40-60A draw.
ANY hill causes problems (like the gentle slope in part of my driveway)
as the amps shoot up to over 100. (meter only goes to 100) and then the
voltage drops enough so that the controller drops out.
After letting it all sit over night, all the cells were sitting at about
1.33v.
Looking at the specs for the cells, they should be able to handle 100A
loads.
So, this might be a sign of the "memory affect"?
My little lightbar only draws about 1A at 36v. (possibly less)
I could try hooking up my big lightbar to do the initial drawdown.
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