Posted by Tom Fleming on November 19, 2011 at 02:51:21 from (206.193.250.146):
In Reply to: Battery question posted by IH fan on November 18, 2011 at 17:55:31:
Well, I won't comment on what is draining your battery, however, I will comment on your battery charging question. Yes, if you put a battery on fast charge, it will bubble up and "boil". IMHO (in my humble opinion), fastcharge should only be used when absolutely necessary. It is hard on a battery, and reduces overall battery life. When you charge a battery, there is ALWAYS hydrogen generated, a byproduct and fact on how batteries produce and "store" electricity. Rate of charge is directly proportional to the rate of hydrogen gas production. Charge faster, and hydrogen will "boil" off in the cells. It is also the base cause of battery explosions.
Personally, unless in an "emergency" situation, I NEVER charge small lawn type batteries more than 2-4 amp/hours rate, and larger car/truck/tractor batteries more than 10-15 amp/hour rate. Yes, it takes longer to charge them, but it helps promote the life of the battery.
lead sulfate precipitate falling to the bottom of each cell will build up and eventually short out that cell, rendering the battery junk. Trick is to keep as much lead sufate in solution as possible to prevent this (i have over simplified this example, because it has to do with sulphate ions, sulphuric acid concentration, and the electrochemical process that goes on within a battery). That is why a fully discharged battery ususally is junk. Overcharge and too many "quick charge" cycles also will reduce the life of a battery. Plate distortion, boiling dry, etc. are all by products of battery charging "abuse" so to speak.
A properly maintained battery, kept up to charge will last at least 4-5 years. I have two 6 volters now that are in their 6th year. I know I am pushing the envelope, but when they do ultimately fail, I will replace them.............
This post was edited by Tom Fleming at 02:58:34 11/19/11.
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