I can't understand why sparks weren't flying when you connected two batteries in parallel and one was reversed polarity. Newer smart chargers wouldn't work. Older manual chargers send sparks flying.
I have seen two 12v in series on trolling motors and electric wheelchairs reverse polarity. Reversing polarity occurs one battery is weaker than the other. Continued use causes the polarity of weaker battery to reverse polarity. When you recharge the 2 batteries in series, the weaker battery will end up with correct polarity. So it may be possible to charge with the correct polarity. Test battery afterwards. Post back
That's why it's a good idea to replace all batteries at once.
Your battery is always worth $10 at O'Reilly's. They will $10 in store credit.
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Today's Featured Article - Show Coverage: Central Illinois Strawberry Festival - by Cindy Ladage and Janna Seiz. Every year the coming of summer is highlighted by different events for different people. For some, it is heralded with the end of school, tilling the garden, or completion of the planting season. To us, connoisseurs of find food, antique tractors, farm toys, crafts, and downright fun, the annual Strawberry Festival means summer is here. Every year, in Carlinville, Illinois, the Macoupin County Historical Society and the Macoupin Agricultural Antique Association team up to fill th
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