PWM controller with no float
OK, I have a Morningstar Sunsaver 20a PWM controller. It's not the current generation, which is a 3-stage unit. It's basically a 2-stage without the float stage. It delivers full amps till the targ...
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IMHO, gassing is not necessary for charging and may even impede charging. Gassing is simple electrolysis where energy is wasted breaking apart water molecules into H and O.
With AGMs, stop messing around with high Volts! Do not stir an AGM! Temp-comp means staying below gassing Voltages. Focus more on supplying Amps.
HTH;
John
Deka wrote:
If the right pressure (voltage) is used for the temperature, a battery will accept charge at its ideal rate. If too much pressure is used, charge will be forced through the battery faster than it can be stored. Reactions other than the charging reaction occur to transport this current through the battery—mainly gassing. Hydrogen and oxygen are given off faster than the recombination reaction. This raises the pressure until the pressure relief valve opens. The gas lost cannot be replaced. Any VRLA battery will dry out and fail prematurely if it experiences excessive overcharge.
Note: It is the pressure (voltage) that initiates this problem—
a battery can be “over-charged” (damaged by too much voltage)
even though it is not fully “charged.”
With AGMs, stop messing around with high Volts! Do not stir an AGM! Temp-comp means staying below gassing Voltages. Focus more on supplying Amps.
HTH;
John
