275 WATT RV Solar Kit



275 WATT RV Solar Kit Includes:

1 x 275 W Canadian Solar Panel

40 Amp Morningstar Prostar MPPT Charge Controller

Built in Digital meter

Z type 4-Mount Brackets 
Heavy duty with stainless steel screws.

25 Foot 10ga MC4 cable Male to Charge Controller

25 Foot 10ga MC4 Female to Charge Controller




The 275 Watt RV Solar kit is Powerful, Reliable and Dependable. Easy to install with only one panel to mount and connect on an RV or Off Grid 12v-24v systems. This kit utilizes "oversizing" by using a higher voltage panel (you can size Morningstar’s MPPT controllers well above the Maximum Nominal Solar PV Input rating without damaging the controller and without the charging current exceeding the maximum output current rating.
Energy harvesting during lower power production periods (cloudy weather) is often more valued than during times when the array can operate at full power (sunny weather). The controller can limit current and will run at 100% of rated output. It runs the controller at maximum levels more consistently
The controller was designed with this power-shaving capability and when oversized it does not void the warranty.
 275 WATT Single Panel RV SOLAR KIT Can be expanded by simply connecting more panels
(It can handle up to 4 x 175W panels in series/parallel for 1100 Watts total. Power shaving at 1100 watts, No risk of damage to controller in this configuration)

Morningstar Prostar 40A MPPT 12v-24v charge controller with digital meter


The 275 Watt kit's state of the art MPPT charge controller out performs all other comparable controllers. MPPT TrakStar can add 10-30% Gain in charging early, late (low light conditions) and especially in colder weather


275 Watt Canadian Solar Panel

These are large panels 65.0 x 39.1 x 1.57 in and weigh 40 lbs

Max power (Pmax)           275W

Max current (Imp)             8.80A

Max voltage (Vmp)           31.3V

Short circuit current (Isc)  9.31A

Open circuit voltage(Voc) 38.3V

Data sheet





Morningstar ProStar PS-MPPT 40 amp 12/24V Charge Controller 

Morningstar’s ProStar is the world’s leading mid-range solar controller for both professional and consumer applications.

Key Features and Benefits

Estimated 15 year life

Very accurate control and measurement, Temperature compensated charging

100% solid state

Very low voltage drops

Current compensated low voltage disconnect (LVD)

LED’s to indicate battery status and faults, Capable of 25% overloads

Remote battery voltage sense terminals, Warranty – 5 year







Z type 4-Mount Brackets (1 set)
Heavy duty with stainless steel screws.






25 Ft 8ga MC4 Male to Charge Controller Positive Lead cable

25 Ft 8ga MC4 Female to Charge Controller Positive Lead cable

(ships 50' cable pos/neg to be cut in 1/2)

kit does not include the 2 battery cables that go from controller to battery posts. Keep them short with controller mounted as close to battery bank as possible. 





12v Inline fuses and breakers are very inexpensive and easy to find locally at auto parts or car stereo stores

If you add fuses to and from controller on this kit you'd use 15a on pos solar and 15a on pos battery
fuse   _wsb_113x87_fuse

          common 12v inline fuses and breakers