Sorry to say, your battery is dead. The reading you got was under no load conditions. Put a load of about 50 amps across it and the voltage will probably fall to just about nothing if even your lights are pulling it down to probably about 8 volts. Only one solution here - you have to replace the battery.
The gel filled will not spill and needs no maintenance, however, I think the amp/hour rating might be a bit lower but they so seem to last quite well. Compare the price and the amp/hour rating and see which suites you better. The higher the rating the more you can draw out of it.. If the battery is located near the engine or in a position where it is continually hot, the acid battery might be better because you can service it.
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Thanks alot that was the first thing I was going to try too. Do you know what kind of battery is better the liquid or the gel filled?
Thanks a lot. I figured that's what it would be or at least hoping. Do you know what kind if battery is better the liquid or the gel filled?
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