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Unread 02-07-2015, 06:02 PM   #1
Getting Wild
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Join Date: Feb 2013
Location: Kansas
Posts: 87
Default How do you by pass charger receptacle?

I have converted my batteries to a LifePO4 pack on my 2005 TXT. Up until now I have raised the seat and ran an extension cord to the BMS to charge. I want to run wires from the BMS to use the old powerwise receptacle. My problem is that presently if the positive wire from the receptacle is not attached to the positive of the battery pack, I get nothing. My LifePO4 charger runs through my BMS. In order to make the receptacle work for the BMS it has to be removed from the battery pack. Can anyone tell me if it is possible to bypass this safety feature?
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Unread 02-07-2015, 06:06 PM   #2
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Join Date: Dec 2007
Location: Southern California
Posts: 66,656
Default Re: How do you by pass charger receptacle?

The reedswitch in the charge receptacle can safely be bypassed. Ezgo eliminated it in later years. Simple trace the wire back and connect it directoly to your pack main (+)
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Unread 02-08-2015, 08:39 AM   #3
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Default Re: How do you by pass charger receptacle?

It took me a moment to realize you actually want to re-purpose the charge receptacle rather than by-pass it.

Basically, you want to connect the black (-) and white (+) wires from the receptacle to the BMS input and then connect the BMS output to the battery pack, but the BMS doesn't work if the Main positive of the battery pack is connected to the receptacle's white wire via back-feed through the reed switch circuitry since it effectively ties the BMS positive input and output together, and the cart doesn't run with out it connected. (Catch-22)

Completely eliminating the reed switch circuitry from charge from the charge receptacle and connecting it to the battery pack's main positive elsewhere as Scotty suggests will eliminate the cross feed between the BMS and solenoid activation circuits.
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