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Compass Marine How To | all galleries >> Welcome To MarineHowTo.com >> How Fast Can an AGM Battery Be Charged..? > STORED ENERGY - 2 Hour .2C Charge/Discharge Test
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STORED ENERGY - 2 Hour .2C Charge/Discharge Test




After charging the battery from 50% SOC for two hours at 21A we were able to remove 35.28Ah's and bring the battery back down to 50% SOC.


Let's do the math:


Baseline Ah Capacity = 95.69Ah


Discharge to 50% = 47.84Ah (left in the battery after discharge)


2 Hour charge then discharged and counted Ah's delivered back to 50% SOC = 35.28Ah


47.84Ah + 35.28Ah = 83.12Ah of stored energy


83.12 is 86.9% of the baseline Ah capacity of 95.69Ah's


BOTTOM LINE: The battery achieved approx 87% SOC in two hours at a .2C charge rate








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