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Unread 10-22-2016, 08:00 PM   #1
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Default Charging voltages

I have a 1998 36v EZGO TXT and curious at what voltage the charger should cut off? This is all new to me so I'm a little concerned with a brand new battery pack getting charged over 40v. The charging amps are steadily going down so I'm thinking everything is working right but don't want to kill a new battery pack by overcharging.
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Unread 10-22-2016, 08:41 PM   #2
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Default Re: Charging voltages

You may see upwards of 48.6 volts during the charge cycle....
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Unread 10-22-2016, 08:46 PM   #3
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Default Re: Charging voltages

Quote:
Originally Posted by teecro View Post
You may see upwards of 48.6 volts during the charge cycle....
Wow crazy but glad the charger isn't doing crazy things....yet.
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Unread 10-23-2016, 09:48 AM   #4
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Default Re: Charging voltages

Attached is the recommended charge profile for Trojan brand deep cycle batteries. Note that max voltage listed on the voltage scale is 2.79VPC (Volts per Cell).

A 36V battery pack has 18 cells, so the max on-charge voltage recommended by Trojan is 50.22V.

The max on-charge voltage reached depends on what type charger is being used. The legacy chargers (ferroresonant transformer type) typically shut off at 45V +/- 1V while the modern dV/dT type may climb closer to 50V.
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File Type: jpg Charge curve.JPG (33.2 KB, 0 views)
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