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What is sulfation of batteries?
Sulfation is the formation or deposit of lead sulfate on the surface and in the pores of the active material of the batteries' lead plates. If the sulfation becomes excessive and forms large crystals on the plates, the battery will not operate efficiently and may not work at all. Common causes of battery sulfation are standing a long time in a dischargerd condition, operating at excessive temperatures, and prolonged under or over charging.
How to connect a battery in Parallel?
The positive terminal of the first battery is connected to the positive terminal of the second battery, the positive terminal of the second is connected to the positive of the third, etc. The negative terminal of the first battery is connected to the negative terminal of the second battery, the negative terminal of the second is connected to the negative of the third, etc. So the batteries are connected: + to + to + and - to - to -. In this configuration, the capacity is the sum of the capacities of the individual batteries and voltage is unchanged. For example, if you take 5 6V 10AH batteries and connect the batteries in series, you would end up with a battery array that is 30 Volts and 10AH. If you connect the batteries in parallel, you would end up with a battery array that is 6 Volts and 50AH. By the way, this is how ordinary auto batteries are made. 6 2volt cells are put in series to give 12v battery and the 6 cells are just enclosed in one case. Many ni-cad batteries are done the same way.
What is a marine battery?
Marine batteries are considered a "hybrid" battery which actually falls between the starting and deep-cycle batteries. Marine batteries are usually rated using "MCA" or Marine cranking amp which is rated 32 degrees F, while CCA is at zero degree F. (For more information on CCA, CA & MCA, please see below)
Can batteries freeze?
In a partially discharged state, the electrolyte in a lead acid battery may freeze. At a 40% state of charger, electrolyte will freeze if the temperature reaches approximately ?6.0°F. The freezing temperature of the electrolyte in a fully charged battery is -92.0°F.
