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The Go Power! 10 Amp PWM Single Bank Solar Controller (model GP-SB-PWM-10) is a 12 volt, flush-mount solar charge controller rated for 10 amps of continuous solar current and up to 200 watts of panels. It regulates the current from your panels into one battery bank and limits it once the battery is full, so the battery isn't overcharged.
It's sized for smaller RV and off-grid systems, such as small trailers and truck campers with one or two panels. A backlit LCD with four buttons shows what the controller is doing and holds its settings and charging history.
Charging runs in bulk, absorption, float and equalize stages with temperature-compensated PWM at -25 mV per °C. Choose Sealed/Gel, AGM, Flooded or LiFePO4, or set a Custom profile. In the manual's charging chart, bulk and absorption are 14.1 volts for Sealed/Gel and 14.4 volts for AGM, Flooded and LiFePO4, with absorption held 30 minutes a day. Float is 13.7 volts for lead acid and 14.1 volts for LiFePO4, and equalize runs only on the Flooded profile. Go Power notes the Custom settings are for professional installers and advanced users.
When the controller has solar power but doesn't detect a battery, it sends 5 pulses to try to restore a lithium battery that its BMS has shut off after over-discharge. If that doesn't work, it shows an error so you can check the battery and restart its BMS by hand.
Three menus run on four buttons. The status screens rotate through battery voltage and current, solar open circuit voltage and controller temperature. The history menu keeps amp hours charged today, for each of the last three days, for the last 7 days and in total, plus days in operation. In settings you can force an absorption charge before nightfall, pause charging for maintenance and switch between °F and °C.
The controller warns of reverse polarity on the battery or solar side and protects against short circuit, reverse current, over-voltage, over-temperature and over-current. At night it disconnects automatically so current can't flow back into the panels. As its internal temperature climbs, it reduces and then stops charging until it cools.
Small trailers and truck campers. Keep one 12 volt battery charged between trips with a 100 to 200 watt array.
Lithium batteries. Select the LiFePO4 profile for a lithium iron phosphate battery with its own BMS.
Replacing a Go Power! controller. Go Power says the SB-PWM series uses the same mounting footprint as factory-installed Go Power! controllers, with an adapter plate for older GP-PWM-30-SQ cut-outs.
Go Power's comparison lists the GP-SB-PWM-10 at 10 amps and 200 watts at 12 volts with an on-unit LCD and a 2-year warranty. The GP-SB-PWM-30-BT handles 30 amps and 600 watts, adds Bluetooth monitoring in the Go Power! Connect app and carries a 5-year warranty. Choose the 30 amp model if you plan to add panels.
As Go Power explains it, a PWM controller runs the panel at battery voltage, so it suits one or two 12 volt nominal panels wired in parallel on a simple kit. An MPPT controller converts higher panel voltage into extra charge current and allows series wiring, which Go Power suggests for larger arrays, lithium banks or long cable runs.
Use 12 volt nominal panels wired in parallel only; never in series. The array's combined open circuit voltage must stay at or under 28 volts, and the panels' total short circuit current (Isc) times 1.25 must not exceed 12.5 amps. Go Power recommends one 100 to 150 watt panel and keeping the array at or below about 80% of the 200 watt rating, to leave margin for cold, bright days. Go Power estimates about 30Ah per 100 watts per day in spring and summer and about 12Ah in fall and winter.
Use #10 or #12 stranded copper wire, stripped to 3/8 inch, and keep the run from the panels to the battery within 25 feet. A fuse or breaker on the positive battery wire is required but not included; the manual calls for one no larger than 10 amps, within 18 inches of the battery. Mount the controller flush on a vertical wall, indoors and protected from the weather, as close to the battery as possible and within 3 meters.
Up to 200 watts of 12 volt nominal panels in parallel, such as one 200 watt panel or two 100 watt panels. Go Power recommends a single 100 to 150 watt panel for margin.
No. The GP-SB-PWM-10 has an on-unit LCD only. For app monitoring, Go Power points to the GP-SB-PWM-30-BT.
No. It's a single bank controller. Go Power points to its dual bank controllers for house and chassis charging.
Go Power warrants the GP-SB-PWM-10 for two years from the date of shipment from its factory against defects in materials and workmanship.
The Go Power! 10 Amp PWM Single Bank Solar Controller gives a 12 volt battery four-stage charging, five battery profiles, lithium wake-up and a charging history in a compact flush-mount panel. If you'd like help choosing a panel or the right wire and fuse, the Outbound Power team is happy to help.
Go Power! 10 Amp PWM Single Bank Solar Controller Specifications |
|
|---|---|
| Model | GP-SB-PWM-10 |
| Charging | |
| Controller Type | PWM |
| Charging Stages | 4 (bulk, absorption, float, equalize) |
| Battery Banks | 1 |
| Battery Profiles | Sealed/Gel, AGM, Flooded, LiFePO4, Custom |
| Nominal Charge Current | 10A |
| Max Battery Charge Current | 12.5A |
| Bulk/Absorption Voltage, Sealed/Gel | 14.1V at 77°F (25°C) |
| Bulk/Absorption Voltage, AGM, Flooded, LiFePO4 | 14.4V at 77°F (25°C) |
| Absorption Time | 30 min per day |
| Float Voltage | 13.7V lead acid, 14.1V LiFePO4 |
| Equalize | Flooded only |
| Custom Profile Range | 8 - 16V |
| Temperature Compensation | -25 mV/°C |
| Lithium Wake-Up | Yes |
| Solar Input | |
| Max Solar Power | 200W at 12V |
| PV Input Operating Voltage Range | 15 - 28V |
| Max PV Input Voltage | 35V |
| Max Array Open Circuit Voltage | 28V |
| Max Solar Current (Isc x 1.25) | 12.5A |
| Panel Wiring | Parallel only |
| Battery | |
| Nominal System Voltage | 12V |
| Battery Voltage Range | 9 - 16V |
| Battery Types | Sealed, Gel, AGM, Flooded, LiFePO4 with BMS, Custom |
| Monitoring and Communication | |
| Display | Backlit LCD, 4 buttons |
| Status Readings | Battery voltage and current, solar voltage, controller temperature |
| History | Amp hours today, last 3 days, last 7 days, total; operating days |
| Bluetooth | No |
| Display Consumption | 15 mA or less |
| Protection | |
| Protection | Battery/solar reverse polarity, short circuit and reverse current; over voltage; over temperature; over current |
| Battery Over Voltage | Up to 50V |
| Solar Over Voltage | Up to 30V |
| Physical | |
| Mounting | Flush wall mount, indoors |
| 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) |
| Wire Size | #12 or #10 recommended, #8 AWG max |
| Terminal Torque | 15 in-lb (12 AWG), 20 in-lb (10 AWG), 25 in-lb (8 AWG) |
| Operating Temperature | -40 to 122°F (-40 to 50°C) |
| Storage Temperature | -40 to 167°F (-40 to 75°C) |
| Humidity | 99% non-condensing |
| Ingress Protection | IP32 |
| Certifications and Warranty | |
| Certifications | UL 1741, C22.2 No. 107.1-16, CE, RoHS |
| Warranty | 2 years |
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