36 volt 1% daily discharge values, question?

scottyb · 12-17-2018, 04:47 PM

Here is another variable mathematicians will hate > the true self discharge rule is up to 1% per day.... so most are less than that. How much less? I do not know.

R.Boyd · 12-17-2018, 04:51 PM

That's about a .03 volt drop per day or about 0.21 volts per week under perfect conditions with nothing drawing on it. That's about what I'm seeing actually with the wonky weather we're having.

scottyb · 12-17-2018, 05:33 PM

There is a whole other equation. Capacity loss by degrees.

Mooncarter · 12-17-2018, 06:05 PM

Quote:

Originally Posted by R.Boyd

If you go off of the last spreadsheet I made it would be a 26% loss after 30 days so you are dang close.

I only carried it out 30 days. Calculator and pencil. Got tired of it. LOL.

scottyb · 12-17-2018, 08:02 PM

Based upon the same math and given the statement is as much as or up to 1% I figured it was reasonably safe to let a fully charged cart with no parasitic draw sit for 30 days.

R.Boyd · 12-17-2018, 08:57 PM

Agreed Scotty. Thanks for everyone's responses!

scottyb · 12-17-2018, 10:03 PM

Our weather is more battery friendly.
Lows are 30-40º and highs always 50-75º even in the winter.

12-17-2018, 04:47 PM	#11
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 36 volt 1% daily discharge values, question? Here is another variable mathematicians will hate > the true self discharge rule is up to 1% per day.... so most are less than that. How much less? I do not know.

12-17-2018, 04:51 PM	#12
R.Boyd Getting Wild Join Date: Sep 2018 Posts: 96	Re: 36 volt 1% daily discharge values, question? That's about a .03 volt drop per day or about 0.21 volts per week under perfect conditions with nothing drawing on it. That's about what I'm seeing actually with the wonky weather we're having.
R.Boyd Getting Wild Join Date: Sep 2018 Posts: 96

12-17-2018, 05:33 PM	#13
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 36 volt 1% daily discharge values, question? There is a whole other equation. Capacity loss by degrees.

12-17-2018, 08:02 PM	#15
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 36 volt 1% daily discharge values, question? Based upon the same math and given the statement is as much as or up to 1% I figured it was reasonably safe to let a fully charged cart with no parasitic draw sit for 30 days.

12-17-2018, 08:57 PM	#16
R.Boyd Getting Wild Join Date: Sep 2018 Posts: 96	Re: 36 volt 1% daily discharge values, question? Agreed Scotty. Thanks for everyone's responses!
R.Boyd Getting Wild Join Date: Sep 2018 Posts: 96

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12-17-2018, 10:03 PM	#17
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 36 volt 1% daily discharge values, question? Our weather is more battery friendly. Lows are 30-40º and highs always 50-75º even in the winter.

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