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Old 03-30-2015, 07:29 PM   #1
vonhammer
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Default Charger Amps Oscillating

Corroded and loose connections resulted in two melted battery posts. I replaced them and cleaned up all of my connections. Cart runs and it appears everything is connected right. The problem came when I tried to charge the cart. When I plugged it in, the charger began to oscillate from 0 to 10 amps. Swings are rapid to the point I am concerned leaving it plugged in. The charger has never behaved this way before. Need some ideas to troubleshoot.
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Old 03-30-2015, 08:29 PM   #2
Revolution
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Default Re: Charger Amps Oscillating

Tell us what cart, year, voltage, drive system and what brand of charger for some help.

Oh and any other changes you've made to the cart.
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Old 03-31-2015, 06:01 AM   #3
vonhammer
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Default Re: Charger Amps Oscillating

TXT, 48V, AXE 4855, dpi charger, T-875s, 2 Gauge cables.

Ran fine for two years. Charger started oscillating after melt down.
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Old 03-31-2015, 10:33 AM   #4
JohnnieB
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Default Re: Charger Amps Oscillating

Is the DPI charger giving you any error codes?

What is pack voltage?

Normal start-up is about 5A until pack voltage reaches about 56V for a 48V pack.
Does the charger go through the pre-qualification tests, or does it just start bouncing from 0-10A?

If it doesn't pre-qualify the pack, give DPI a call.
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Old 03-31-2015, 12:20 PM   #5
vonhammer
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Default Re: Charger Amps Oscillating

No error codes. Skips detection and goes directly to yellow flashing charge mode. Called DPI. They suspect a faulty card. Will plug into another cart to isolate to the charger and go from there.
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Old 03-31-2015, 12:40 PM   #6
JohnnieB
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Default Re: Charger Amps Oscillating

Sounds like a plan.
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Old 03-31-2015, 12:51 PM   #7
vonhammer
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Default Re: Charger Amps Oscillating

Local golf cart shop did not have any 48V TXTs to plug into. Called DPI and they are sending a new card. DPI is a good shop to deal with.
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Old 03-31-2015, 01:56 PM   #8
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Default Re: Charger Amps Oscillating

Quote:
Originally Posted by vonhammer View Post
Local golf cart shop did not have any 48V TXTs to plug into. Called DPI and they are sending a new card. DPI is a good shop to deal with.
In addition to their chargers having the electrical attributes needed for maintaining golf cart batteries and being the best bang for the buck that I am aware of, their customer service is topnotch also.

Like all gadgets, they do break occasionally, but it is a simply fix.
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Old 03-31-2015, 11:25 PM   #9
cgtech
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Default Re: Charger Amps Oscillating

Plus, USA MADE. Have talked to the guys, have had them say "i wrapped that transformer, if its bad i want to see it back here".... Dont get that kinda response from india or china.
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