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I have a Razor MX650. I replaced the batteries last year and at the end of the season, they would not charge. I thought something was wrong with the charger because it would not go from red to green. It would just stay solid green. So i replaced the charger and it did the same thing so I just assumed the batteries were bad so I replaced the batteries. I ran it once with the new batteries and now when I go to charge it, they will not charge. The charger does the same thing. What am I missing here. I can't have 2 bad sets of batteries can I? Hoping to get some suggestions here.
 

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Razor mx500 (mildly modded monster)
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Unfortunately you can fry them as stated above. Id recommend going lithium ion battery pack of your choosing... yes its expensive but you get a battery pack that will last 4x as long as sla batteries, provide longer ride time, are way lighter, provide instant power without voltage sag and have a bms board that prevents overcharging.
 

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What's your poison? Mine is 40:1
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I had some wiring cause problems like that. Check over everything. Maybe a wire isnt on a battery, etc.
 

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Pull the batteries out and charge them individually with a quality charger ( car/motorcycle charger with automatic shut off ) then put them back in run it for about 10 minutes then try to charge it if it still won't charge more than likely you have a broken wire or a bad plug somewhere...
 

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What's your poison? Mine is 40:1
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It really is good practice to take those batteries out every once in awhile and charge them individually. They really do last longer that way
 
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