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HiTech's avatar
HiTech
Explorer
Feb 23, 2013

Initial test manual home brew $8 MPPT controller

The $8 (plus shipping) laptop DC to DC Power Supply (i.e. the guts of a laptop power supply) quick initial results: Early morning sun it puts out a few hundredths of an amp into the battery but i...
ktmrfs's avatar
ktmrfs
Explorer II
Feb 24, 2013
MrWizard wrote:
i think it makes an excellent substitute for a PWM controller for a full timer

the ability to adjust the output voltage to say a constant 14.2 ( no float mode, not to be used for storage or week end only campers )
and the low cost, makes an excellent backup or replacement

for storage it could be adjusted to 13.6v or less


and for $8 I'll bet it is a worthwhile improvement in current over a PWM controller and $200 less than a MPPT controller.

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