On 5/3/2025 6:09 PM, John Lussmyer via EV wrote:
I'm digging some old BB600's out of my shop archive to see if I can
still use them to run an old 36v Taylor Dunn cart.
https://www.casadelgato.com/BB600/BB600.html
I just did some digging through my history. We originally bought these
(surplus) in 2005.
All mine were destroyed in a shop fire in 2006.
The ones I have now were from someone else, who used them in a small
pickup truck. They eventually stopped using them and gave them to me.
(I don't know if he switched to other batteries, or the conversion had
an issue, or whatever...)
I think they've been in my shop for something like 15(?) years.
After being somewhat abused by the previous owner, and sitting for so
long, they are definitely in rough shape.
I'm sorting through them, finding ones that don't show signs of over
heated posts (melted plastic around them), and aren't bulged.
I think this cuts it down to about 1/2 the cells will be usable.
It's also interesting that the nickel plating on the copper busbars has
almost completely failed. What little is left is curled and flaking off.
A pack of 32 cells (1.2v nominal ea) should be a reasonable replacement
for 6, 6v golf cat batteries - voltage wise. Not sure if a single
string of BB600 will be able to handle the current needs of the cart.
If not, I should have enough to make 2 strings.
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