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Old 01-25-2016, 10:02 PM   #1
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Is Baking Soda OK On Batteries

My Georgetown coach batteries were collecting corrosion and rusting the tie-down fasteners and steel support shelf as well as staining my concrete pad. A mechanic suggested mixing baking soda with water and sprinkling it on the batteries. I tried it and the corrosion problem went away. I have to redo the backing soda ever few months. My question is: is it bad for the batteries to coat them with a residue of baking soda?
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Old 01-25-2016, 10:11 PM   #2
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You should clean off the baking soda with lots of clean water.
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Old 01-26-2016, 09:44 AM   #3
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Quote:
Originally Posted by DDC View Post
You should clean off the baking soda with lots of clean water.
X2- You will then need to coat the electrical connections with Dielectric grease. Which can be obtained from any auto parts store. This will help in preventing future corrosion of the post and cables.
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Old 01-26-2016, 09:50 AM   #4
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X2 on the dielectric grease. You can buy spray on dielectric grease. It makes it easier to apply.
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Old 01-26-2016, 09:54 AM   #5
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X3 on the baking soda to clean off battery tops, cables and connections. Use old toothbrush and scrub well. Keep the baking soda out of the cells. Flush thoroughly with water after cleaning. Dielectric grease is a good thing too
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Old 01-26-2016, 01:04 PM   #6
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The dielectric grease is the best detterent. Baking soda is great from de-acidizing,,,,,BUT rinse it all off and don't let a DROP of it get into the cells. It will destroy the battery's ability to charge or hold a charge. The battery is acid and the soda is alkaline. Put them together and you get a ph near 7 which is neither,,,,,like water.....and your battery is dead forever.
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Old 01-26-2016, 01:07 PM   #7
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X3 on the dielectric grease and I have also learned that a small sacrificial piece of copper(about the size of a penny) fastened to the top of each of the battery posts with a dollop of the grease will postpone future corrosion development. Don't ask me how it works but I know it does
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Old 01-26-2016, 01:09 PM   #8
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Sacrificial anode

I have used to good effect, a penny touching the positive terminal as a sacrificial anode to prevent corrosion on batteries. It has proven better than various di-electric materials as there is almost always a small untreated surface that still leaks ions, and it only costs a penny.
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Old 01-26-2016, 01:13 PM   #9
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Grampa Jim is spot on. Bi-carbonate of soda (baking soda not baking powder) neutralizes acid and if it gets into your battery it will kill it. If you have maintenance free batteries you are much better off.
Corrosion across the top of a battery will also slowly drain and kill the battery because it creates a short circuit between the positive and negative terminals. I find that vaseline works if you cannot get a good di-electric grease.
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Old 01-26-2016, 01:49 PM   #10
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If the corrosion is as bad as you say, you should also remove the batteries and treat the tray and hold downs the same way as the batteries. Then remove as much of the loose paint as possible from the trays. Before reinstalling the batteries spray the tray and hold down with automotive undercoating, "rubberized", (found at most auto parts stores). It will protect those parts in the future from further damage by the battery acid.
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