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Old 29-05-2012, 10:41   #31
noelex 77's Avatar

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Join Date: Jul 2007
Location: Full time cruising. Currently in the Med.
Boat: Aluminium yacht
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Re: MTTP Solar Charge Controllers

Thanks for the detailed investigation Gilana.

A couple of points that may help people wanting to buy this regulator

There is a big gap between bulk voltages of 14.1 and 14.7. The better solar regulators make these parameters adjustable and they need to be be if you want to get the most out of your solar panels.
The " regular version " would be much better labeled gel only. This version is not suitable for a regular flooded battery. The AGM version is much more suitable for most batteries ( other than some gels).
The assumption that the battery is fully charged the end of the bulk phase is wrong. Boat batteries operate on a very narrow range of soc, getting an extra 5 or 10% into the batteries is important to reduce the depth of discharge. Pressing a button to restart the charging is not practical, a regulator should function automatically.

It's nice of the designer to respond personally and so quickly to concerns, particularly when their is a language difference, but I would wait for the v2 version and hope some of these issues will be addressed.

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