If I understand correctly, a pwm charge controller uses 3 stages bulk, float and absorb. The TriStar TS-MPPT-45 cc says it uses a 4 stage method or bulk, absorption, float and equalize. What is the difference between the pwm and mppt versions of what seems to be the same thing?
I have a basic understanding that with pwm what goes in goes out more or less, and mppt tries to get the most out of your panels with dc to dc conversion.
ex. Say you're getting 18v and 7amps off of a panel on a small system and the cc goes into float and then it only puts say 1amp into the battery bank during that whole stage, does the 4-stage mppt waste those amps/volts in float mode too or does it convert it to something that the battery bank can handle? Is float mode always wasteful?
I have a basic understanding that with pwm what goes in goes out more or less, and mppt tries to get the most out of your panels with dc to dc conversion.
ex. Say you're getting 18v and 7amps off of a panel on a small system and the cc goes into float and then it only puts say 1amp into the battery bank during that whole stage, does the 4-stage mppt waste those amps/volts in float mode too or does it convert it to something that the battery bank can handle? Is float mode always wasteful?
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