Can controller be installed in battery compartment (somewhat limited in space). RV application, 2-6volt batteries, 1-100 watt panel.

Yes, as long as installation is not too close to batteries and the area is vented to avoid potential gassing / corrosion issues. And to allow for proper temperature sensing if the unit has only a built in sensor the controller should be is the same area as the batteries.

Does this unit alternate voltage based on battery temperature?

The charger will compensate for temperature based on it's internal sensor, essentially gauging the local environment's temperature. An option Smart Battery Sense can be attached to the battery for true battery temperature. Those are new and in short supply, but should be fully available by the end of June, 2018.

what is the difference between smart solar and blue solar?

The single difference between them is that the SmartSolar MPPTs have Bluetooth built-in so that you can monitor and configure them through the VictronConnect smartphone app. The BlueSolar MPPTs do *not* have the Bluetooth built-in; you can use a VE.Direct to Bluetooth Dongle to achieve the same functionality, but the cost of a SmartSolar ends up a little less (typically) than a BlueSolar MPPT +a VE.Direct to Bluetooth Dongle, so it usually makes more sense to order the SmartSolar. If you're not planning on monitoring the MPPT or changing any of the settings, however, a BlueSolar will be just fine, as the actual circuitry is virtually identical. Regards, -Justin Mobile Power Pros / Bay Marine Supply

Will this charger charge uphill? Meaning if I have a48v battery, do I need 52v from the solar panel just to start the charger?

No, this charge controller will not charge 'uphill'. You would need enough panels in series to have more than 48V. If you absolutely need to charge 'uphill', look at Genasun.

ASIN	B075NQQRPD
Best Sellers Rank	#24,619 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #232 in Solar & Wind Power Parts & Accessories
Color	Blue
Country of Origin	India
Customer Reviews	4.7 4.7 out of 5 stars (5,033)
Date First Available	22 September 2017
Item Dimensions LxWxH	21 x 15 x 5 Centimeters
Item Model Number	MPPT 75\|15
Item Part Number	SCC075015060R
Item Weight	0.5 g
Manufacturer	Sunmeister Energy - Authorized Victron Energy Service Centre 18, 5th Cross Street, Wood Creek County Main Rd, Nandambakkam, Chennai, Tamil Nadu 600016 Phone support: 044 4011 4424 Whatsapp Support: +91 9600 763493 Email support: [email protected], Victron Energy
Net Quantity	1.0 Count
Packer	Sunmeister Energy - Authorized Victron Energy Service Centre 18, 5th Cross Street, Wood Creek County Main Rd, Nandambakkam, Chennai, Tamil Nadu 600016 Phone support: 044 4011 4424 Whatsapp Support: +91 9600 763493 Email support: [email protected]
Shipping Weight	0.05 Kilograms
UPC	703774384979
What is in the box?	Victron Energy SmartSolar MPPT Solar Charge Controller.

Victron Energy SmartSolar MPPT 75V 15 amp 12/24-Volt Solar Charge Controller

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Common Questions