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Unread 08-11-2012, 12:45 PM   #1
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Default Battery Usage / Break In

I was thinking about this today and wonder what others think. I installed my new batteries in May and have only charged them three times since as I don't get alot of seat time, at least this summer. When I have used the cart it has never gone below a percentage of charge of 85/90%. Seeing I only have a shallow discharge and then charge the batteries, is this good? I just went out and checked my batteries and the pack still reads 52.2v after four weeks as I haven't used it since my last charge.
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Unread 08-11-2012, 01:16 PM   #2
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Default Re: Battery Usage / Break In

That's fine, I like to see a pack a little more active than that. 50.9 is fully charged and settled, so you are giving a high reading ... is it on a float charge?
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Unread 08-11-2012, 01:20 PM   #3
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Default Re: Battery Usage / Break In

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Originally Posted by scottyb View Post
That's fine, I like to see a pack a little more active than that. 50.9 is fully charged and settled, so you are giving a high reading ... is it on a float charge?
Not on a float charge at all. How about in the winter when the cart is stored as it won't see any activity...
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Unread 08-11-2012, 01:51 PM   #4
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Default Re: Battery Usage / Break In

Battery self discharge rate is greatly reduced in cold weather. Once a month run it and charge it if you can?
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Unread 08-11-2012, 01:55 PM   #5
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Default Re: Battery Usage / Break In

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Battery self discharge rate is greatly reduced in cold weather. Once a month run it and charge it if you can?
I wish I could run it in the winter but that white stuff always gets in the way... So do you think 52.2v is a big concern? I will check it again with a different meter next time just to make sure.
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Unread 08-11-2012, 05:36 PM   #6
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Default Re: Battery Usage / Break In

Does this make sense Scotty. My batteries read 12.8, 12.8, 12.8 and 12.9. That adds up to 51.3v. How can my meter show a pack voltage of 52.2v?
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Unread 08-11-2012, 07:06 PM   #7
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Default Re: Battery Usage / Break In

Just a guess but it could be the auto ranging of your meter has rounding errors. My meter Re-ranges at 18 volts. At twelve volts it has two decimal points. Higher than that it has one. Try two banks of batteries together and add those together. Like I said just a guess
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Unread 08-11-2012, 08:24 PM   #8
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Default Re: Battery Usage / Break In

Put a fresh battery in the meter and retry.... lots of meters give whacky readings on a low battery.
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Unread 08-11-2012, 09:05 PM   #9
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Default Re: Battery Usage / Break In

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Originally Posted by scottyb View Post
Put a fresh battery in the meter and retry.... lots of meters give whacky readings on a low battery.
Good idea Scotty. Didn't even think of that. On a side note, if a pack showed 52.2v, would that be a big concern?
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Unread 08-12-2012, 12:07 PM   #10
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Default Re: Battery Usage / Break In

You were spot on Scotty. My meter had a low battery. The pack reads 49.5v and on the charger they went... I thought it was odd they were holding a high voltage...
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