1 / 6Hover to zoom · click to enlarge100 Amp MPPT Solar Charge Controller
Ships from SunGoldPower's U.S. warehouse
- Free shipping, no minimumTo the lower 48 states and Washington, D.C.
- Authorized SunGoldPower dealerFull manufacturer warranty and support.
- 1-year warrantyBacked by SunGoldPower.
- 30-day returnsOn new, unused items.
Shipping & handling
- Orders are processed within 1–3 business days.
- Parcel items typically arrive 3–7 business days after shipping. Freight items (panels, batteries, inverters and kits) typically arrive 5–14 business days after shipping.
- Rich Solar and SunGoldPower products ship free to the lower 48 states and Washington, D.C., with no minimum. Lensun shipping is based on weight and shown at checkout.
- Freight deliveries need an appointment and a signature, and are delivered curbside.
Returns & refunds
Request a return within 30 days of delivery. Items must be new, unused, not installed, and in their original packaging.
- Contact us first for a Return Merchandise Authorization (RMA). Returns sent without one are refused.
- For a change-of-mind return, you pay return shipping and a 15% restocking fee is deducted from your refund.
- Damaged on arrival? Report it within 3 business days of delivery and we arrange a replacement or full refund.
Warranty
SunGoldPower's product page lists a 1-year warranty for this controller, starting on the date of purchase. Coverage is for the original buyer and excludes misuse, modification and unauthorized repair.
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A 100A MPPT controller for 12V to 48V systems, up to 250V PV
SunGoldPower's SGC4825100A is a 100A MPPT solar charge controller for 12V, 24V, 36V and 48V battery banks. It accepts up to 250V PV open-circuit voltage and up to 5,280W of solar on a 48V system, with MPPT tracking efficiency rated above 99%.
It works with lithium (LiFePO4 preset), sealed, gel and flooded lead-acid batteries. A built-in LCD and Bluetooth app show system data, RS485 supports Modbus and parallel operation of up to six controllers, and a programmable relay output is included.
MPPT tracking up to 99.9%
MPPT tracking keeps the array at its maximum power point, and digital power conversion reaches up to 98% efficiency.
- Auto-detects 12V, 24V, 36V and 48V systems
- Current-limiting charging protects against an oversized array
Works with lithium and lead-acid batteries
Preset profiles cover lithium (LiFePO4 by default), sealed, gel and flooded batteries, plus a user-defined mode.
- Temperature compensation for lead-acid
- Lithium activation when a BMS has cut off
LCD and Bluetooth app
The LCD shows system data, settings and error codes, and the built-in Bluetooth 4.0 module connects to the Solar APP on your phone.
- TTL and isolated RS485 (Modbus) ports
- Programmable relay output
Up to 6 controllers in parallel
Link up to six controllers over RS485, each with its own solar array, to charge the same battery bank.
Built-in protection
Protects against battery overcharge and over-discharge, PV reverse polarity, reverse current at night, controller overtemperature and charge over-current.
- IP32 rated
- Linear power reduction when the controller runs hot
Specs, images and product claims on this page come from SunGoldPower's 100A MPPT product page and user manual. Last checked Oct 30, 2026.
Specifications
From SunGoldPower's published specifications for model SGC4825100A.
Input
| Max PV open-circuit voltage | 250V |
|---|---|
| Max PV input current | 70A |
| Max PV short-circuit current | 70A |
| MPP voltage range | Battery voltage +2V to 180V |
| Max PV input power | 1,320W (12V) / 2,640W (24V) / 3,960W (36V) / 5,280W (48V) |
| Min PV input voltage | 18V (12V) / 36V (24V) / 72V (48V) |
Output
| System voltage | 12V / 24V / 36V / 48V |
|---|---|
| Battery voltage range | 9V to 64V |
| Rated charge current | 100A |
| Settable charge current | 0–100A |
| Max output power | 5,280W |
| Conversion efficiency | Up to 98% |
| MPPT tracking efficiency | > 99% |
| Self-consumption | 0.54W |
| Battery types | Lithium (LiFePO4 default), sealed, gel, flooded, user-defined |
Protection & features
| Protection | Overcharge, over-discharge, PV reverse polarity, reverse current at night, overtemperature, charge over-current (100A) |
|---|---|
| Temperature compensation | -3mV/°C/2V (lead-acid); none for lithium |
| Communication | TTL / isolated RS485 (Modbus) |
| Bluetooth | Built-in 4.0 BLE module |
| Programmable relay | DPST 10A/250VAC; 10A/30VDC |
| Parallel | Up to 6 controllers |
Physical & warranty
| Operating temperature | -31°F to 149°F (-35°C to 65°C), no derating to 104°F |
|---|---|
| Elevation | ≤ 3,000 m |
| Protection grade | IP32 |
| Weight | 12.5 lb (5.7 kg) |
| Dimensions | 12.4 × 8.9 × 4.8 in (314 × 227 × 121 mm) |
| Warranty | 1-year |
| Model / SKU | SGC4825100A |
What's in the box
Package contents as listed by SunGoldPower.
Documents & certificates
Official files from SunGoldPower.
Customer reviews
Reviews from Sun Energy Depot customers, collected by Judge.me.
Pairs well with
Other parts you may need for a 100 Amp MPPT Solar Charge Controller setup.
