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The Go Power! 20 Watt Eco Solar Kit is a solar battery maintainer for a 12V battery in a parked RV, trailer, boat or piece of equipment. It includes a 20W monocrystalline panel, a GP-SB-PWM-10 10 amp PWM charge controller, 25 ft red and black MC4 solar cables, a 10A fuse with fuse holder, and mounting feet and hardware.
Go Power sizes it to offset the standby draws of a stored coach, such as a propane detector, stereo memory and control boards, and to hold the battery at full charge through the off-season.
The panel is rated 20W, with a maximum power voltage of 17.5V, maximum power current of 1.14A, open circuit voltage of 21.6V and short circuit current of 1.21A. Go Power uses tempered glass to withstand hail or light debris and a clear anodized aluminum frame. It measures 13.58 x 18.50 x 0.98 in and weighs 3.97 lb.
Go Power estimates the kit returns about 6Ah a day in summer and about 2Ah a day in winter. It says that offsets the parasitic draws and self-discharge of a battery in storage.
The GP-SB-PWM-10 is a 12-volt, single-bank PWM controller that mounts flush or on the surface. Its backlit LCD shows charging current, battery voltage, battery state of charge and amp hours charged. It handles up to 200W of solar at 12V, so you can add a larger panel later without replacing it.
You can set the controller for AGM, sealed or gel, flooded or LiFePO4 batteries, or use a custom profile. It uses 4-stage charging with bulk, absorption, float and equalization, and temperature compensation. For a lithium battery protected by its BMS, a wake-up function sends 5 pulses to restore it.
The kit includes a fuse holder and 10A ATO fuse for the battery side of the controller, butt splices and heat shrink, plus four mounting feet with 1/4 in bolts, lock nuts, washers and screws.
RV and trailer storage. Go Power says the kit keeps a stored coach battery full and healthy through the off-season by replacing the small draws that run around the clock.
Boats and equipment. Go Power also lists boats, tractors and other equipment batteries, where standby draws slowly empty a battery that sits unused.
A first step into solar. Because the controller handles up to 200W, you can start with this panel and add more solar later on the same controller.
This kit maintains a battery. Go Power says it won't power a camp. For lights and fans on trips, Go Power suggests starting at 80W of solar, and for a fridge, 200W.
Go Power's 10W Eco kit connects straight to the battery. Go Power says any panel over about 5W needs a controller to avoid overcharging, so the 20W kit includes the GP-SB-PWM-10.
Go Power recommends installation by an RV technician or professional electrician. Bolt the four mounting feet to the outer holes in the panel frame, then screw them to a roof surface at least 1/2 in thick, at least 3 ft back from the front of the RV and clear of shade from the air conditioner, antennas and vents. Seal under and around each foot. Route the cables through the refrigerator vent or a cable entry plate, sold separately. Ring terminals and sealant are not included.
Mount the controller vertically indoors, protected from the weather and as close to the battery as possible. Keep the fuse no more than 18 in from the battery connection, and keep wiring from the panel to the battery within 25 ft. The controller is for parallel 12V systems only. The kit manual says the panels' combined maximum power current must not exceed 10A and the array's open circuit voltage must not exceed 28V.
Yes. The controller has a selectable LiFePO4 profile as well as AGM, sealed or gel, and flooded settings. Set the battery type once at installation.
Go Power says any panel over about 5W needs a controller to avoid overcharging, and the 10A unit leaves room to add up to 200W later.
Yes. Go Power says a shadow on one cell can cut a panel's output by half or more, so mount it away from the air conditioner shroud, antennas and vents.
Go Power lists a 10-year limited power output warranty on the 20W panel.
The Go Power! 20 Watt Eco Solar Kit gives your stored RV, trailer or boat a 20W panel, a 10A PWM controller with lithium and lead-acid profiles, and the wiring to keep the battery charged. If you'd like help choosing between this kit and a larger setup, the Outbound Power team is happy to help.
Go Power! 20 Watt Eco Solar Trickle Charger Kit with 10 Amp Controller Specifications |
|
|---|---|
| Model | GP-ECO-20 |
| Kit Contents | |
| Solar Panel | 1 x 20 W monocrystalline |
| Charge Controller | 1 x GP-SB-PWM-10, 10 A PWM |
| Solar Cables | 1 x 25 ft red, 1 x 25 ft black, MC4, #10 AWG |
| Battery Fuse | 1 x 10 A ATO fuse with fuse holder |
| Wiring Parts | 2 butt splices (12-10 AWG), 2 red heat shrink |
| Mounting Hardware | 4 mounting feet, 4 x 1/4 in bolts, 4 lock nuts, 8 washers, 8 #10-16 x 1 in screws |
| Controller Mounting | 4 screws |
| Solar Panel | |
| Rated Power (Pm) | 20 W |
| Max Power Voltage (Vmp) | 17.5 V |
| Max Power Current (Imp) | 1.14 A |
| Open Circuit Voltage (Voc) | 21.6 V |
| Short Circuit Current (Isc) | 1.21 A |
| Cell Type | Monocrystalline |
| Max System Voltage | 600 VDC |
| Glass | Tempered, for hail or light debris |
| Frame | Clear anodized aluminum |
| Mounting Holes | 4, 7 x 11 mm |
| Charge Controller | |
| Controller Model | GP-SB-PWM-10 |
| Type | PWM, single bank, flush or surface mount |
| Nominal System Voltage | 12 V |
| Nominal Charge Current | 10 A |
| Max PV Input Power | 200 W at 12 V |
| Max Battery Charge Current | 12.5 A |
| Battery Input Voltage | 9 to 16 V |
| PV Input Operating Voltage | 15 to 28 V |
| Max PV DC Input Voltage | 35 V |
| Battery Types | AGM, Sealed/Gel, Flooded, LiFePO4, Custom |
| Charging | 4-stage (bulk, absorption, float, equalize) |
| Bulk/Absorption Voltage | Sealed/Gel 14.1 V; AGM, Flooded, LiFePO4 14.4 V |
| Float Voltage | Sealed/Gel, AGM, Flooded 13.7 V; LiFePO4 14.1 V |
| Equalize Voltage | Flooded 14.9 V (others disabled) |
| Temperature Compensation | -25 mV/°C |
| Display | Backlit LCD |
| Lithium Wake-Up | 5 pulses |
| Operating Consumption | 15 mA or less (backlight on) |
| Operating Temperature | -40 to 122°F (-40 to 50°C) |
| Storage Temperature | -40 to 167°F (-40 to 75°C) |
| Humidity | 99% non-condensing |
| IP Rating | IP32 |
| Bluetooth | No |
| Compliance | UL 1741, CSA C22.2 No. 107.1-16, CE, RoHS |
| Dimensions (H x W x D) | 4.02 x 5.2 x 1.26 in (102 x 132 x 32 mm) |
| Weight | 9.2 oz (260 g) |
| Installation Limits | |
| Wiring | Parallel 12 V systems only |
| Max Array Imp | 10 A |
| Max Array Voc | 28 V (12 V system) |
| Fuse Location | Within 18 in of battery |
| Panel to Battery Wiring | 25 ft max |
| Controller Mounting | Vertical, indoors, close to battery |
| Charging | |
| Typical Daily Harvest | About 6 Ah summer, about 2 Ah winter (Go Power estimate) |
| Suggested Battery | 100 Ah AGM or lithium |
| Physical | |
| Panel Dimensions | 13.58 x 18.50 x 0.98 in (345 x 470 x 25 mm) |
| Panel Weight | 3.97 lb (1.8 kg) |
| Shipping Weight | 5.0 lb |
| Warranty | |
| Solar Panel | 10 years limited power output |
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