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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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01-07-2014, 02:49 PM | #1 |
Not Yet Wild
Join Date: Nov 2013
Posts: 25
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Mythbusters - Battery and Epsom Salt Episode
Sorry to crush your hopes, no Mythbusters did not try this, but I envy their jobs. If I only I could be paid to destroy things. I seem to destroy things, but I have to pay to fix them. Just not the same.
So I have searched and searched and searched some more about battery reconditioning using Epsom salts because I had 6 batteries that went dry on me. I figured, what harm can be done. I had the time and I love to experiment so here are my "professional" results. My process: 1. Checked voltage for all batteries 2. Check Specific gravity for all batteries. 3. If battery was over 5 volts, I removed the electrolyte to the top of the plates and added in water/Epsom salt mixture to just above top of plates. 4. If battery was under 5 volts, I drained about half of the electrolyte and added in mixture. 5. Put all batteries on trickle charger for 3 days. 6. Check voltage and specific gravity. 7. If SG was really low (water reading or less than 1.1) added some battery acid to the cell. 8. Charged with trickle charger for 3 more days. 9. Put batteries in cart and charged with golf cart charger for 3 charge cycles. Basically I was rewiring my entire cart (1984 stock Marathon), so I kept the batteries on a trickle charge during that time. Before I started, the cart would barely move an inch after charging. After my rewiring and battery experiment, I was able to take the cart for a 30 second ride before it showed signs of struggling. So whatever I did, I was at least able to go for a ride. Conclusion: I'm happy my cart works, but I still need to buy a set of batteries. Here is the data from my battery experiment. I did not include SG data because that did not change. Battery 1 Before: 6.65v After: 6.65v Load: 6.1v After 3 charge cycles: 6.18 Battery 2 Before: 4.35v After: 6.13v Load: 5.6v After 3 charge cycles: 5.91 Battery 3 Before: 5.17v After: 6.16v Load: 5.4v After 3 charge cycles: 4.89 Battery 4 Before: 6.70v After: 6.62v Load: 6.1v After 3 charge cycles: 6.18 Battery 5 Before: 6.05v After: 4.97v Load: 2.8v After 3 charge cycles: 2.72 Battery 6 Before: 2.88v After: 6.28v Load: 5.4v After 3 charge cycles: 5.93 |
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