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The Go Power! 30 Amp PWM Single Bank Solar Controller (model GP-SB-PWM-30-BT) regulates the current from your solar panels into one 12 volt battery bank and limits it once the battery is full, so it isn't overcharged. Go Power rates it for up to 600 watts of panels at 12 volts.
It's built for RV and off-grid systems with a single house battery. A backlit LCD with four buttons sits on the wall, and built-in Bluetooth links it to the Go Power! Connect app so you can check charging without walking to the controller.
Charging runs in bulk, absorption, float and equalize stages. Choose Sealed/Gel, AGM, Flooded or LiFePO4, or set a Custom profile. At 77°F, bulk and absorption are 14.1 volts for Sealed/Gel and 14.4 volts for AGM, Flooded and LiFePO4, held 30 minutes a day. Float is 13.7 volts for lead acid and 14.1 volts for LiFePO4. Equalize runs at 14.9 volts on the Flooded profile only. Temperature compensation is -25 mV per °C. Go Power notes the Custom settings are for professional installers and advanced users.
If the controller is powered by the solar panel but doesn't detect a battery, it sends 5 pulses to try to restore a lithium battery whose BMS has shut it off after over-discharge. If the battery still isn't detected, it shows an error so you can check the battery and restart its BMS.
The status screens rotate through battery voltage and current, solar open circuit voltage and controller temperature. The history menu keeps amp hours charged for today, each of the last three days, the last 7 days and in total, plus days in operation. Settings let you force an absorption charge before nightfall, pause charging for maintenance, and switch between °F and °C.
The 30 amp model has a built-in Bluetooth Low Energy module that works with the Go Power! Connect app on iOS and Android. The app shows state of charge, battery type, voltage and current, with History and Alerts tabs. From the app you can set the battery type and temperature unit, reboot, force float and absorption, reset the amp hour history and enter custom battery values.
The controller warns of reverse polarity on the battery or solar terminals, withstands up to 50 volts across the battery terminals, and reduces or stops charging as its internal temperature climbs. At night it disconnects automatically so current can't flow back into the panels.
RV house batteries. Charge a single 12 volt house bank from roof panels wired in parallel.
Lithium upgrades. Select the LiFePO4 profile for a lithium iron phosphate battery with its own BMS.
Replacing a Go Power! controller. Go Power says the 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 app monitoring and carries a 5-year warranty.
Both are 30 amp, 600 watt single bank controllers covered by the same manual. The ECO model has no Bluetooth and no backlit screen, and its warranty is 2 years.
As Go Power explains it, a PWM controller runs the panel at battery voltage, so it suits 12 volt nominal panels wired in parallel. 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.
Wire 12 volt nominal panels in parallel only; never in series. The PV operating range is 15 to 28 volts, the maximum PV input is 35 volts, and the total nameplate short circuit current (Isc) must stay within 30 amps (37.5 amps with the 1.25 code factor). Go Power recommends staying at or below about 400 watts, 80% of the 600 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 8 or 10 AWG stranded copper wire, stripped to 3/8 inch, and keep the run from panels to 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 the controller's rating, within 18 inches of the battery. Mount the controller indoors on a vertical wall as close to the battery as possible, within 3 meters, using the template in the box or manual.
It's rated for 600 watts at 12 volts, but Go Power recommends about 400 watts or less, such as up to four 100 watt panels or two 200 watt panels in parallel.
Yes. Select the LiFePO4 profile for a 14.4 volt charge with no equalization. The battery needs its own BMS. The controller doesn't limit current for a lithium battery's cold-weather charge limits, so plan your array around them.
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-30-BT for five years from the date of shipment from its factory against defects in materials and workmanship.
The Go Power! 30 Amp PWM Single Bank Solar Controller gives a 12 volt house battery four-stage charging, five battery profiles, a charging history and Bluetooth monitoring in one wall-mount panel. If you'd like help sizing your panels or choosing wire and fuses, the Outbound Power team is happy to help.
Go Power! 30 Amp PWM Single Bank Solar Controller With Bluetooth Specifications |
|
|---|---|
| Model | GP-SB-PWM-30-BT |
| Charging | |
| Controller Type | PWM |
| Charging Stages | 4 (bulk, absorption, float, equalize) |
| Battery Banks | 1 |
| Battery Profiles | Sealed/Gel, AGM, Flooded, LiFePO4, Custom |
| 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 Voltage | 14.9V, Flooded only |
| Custom Profile Range | 8 - 16V |
| Temperature Compensation | -25 mV/°C |
| Nominal Charge Current | 30A |
| Max Battery Charge Current | 37.5A |
| Lithium Wake-Up | Yes |
| Solar Input | |
| Max PV Input Power | 600W at 12V |
| PV Input Operating Voltage Range | 15 - 28V |
| Max PV Input Voltage | 35V |
| Max PV Input Current | 30A |
| Max PV Input Short Circuit Current | 37.5A |
| Panel Wiring | Parallel only |
| Battery | |
| Nominal System Voltage | 12V |
| Battery Voltage Range | 9 - 16V |
| Battery Output Operating Range | 9 - 14.9V |
| 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 | Bluetooth Low Energy, Go Power! Connect app (iOS and Android) |
| Self Consumption | 15 mA or less (backlight on) |
| Protection | |
| Protection | Battery and PV reverse polarity, battery and PV over voltage, over temperature, over current, reverse current |
| Battery Over Voltage Tolerance | Up to 50V |
| Over Temperature | Charging reduced at about 95°C internal, stopped at about 97°C |
| 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 | 10 - 8 AWG |
| Terminal Torque | 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 | 5 years |
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