30A MPPT Solar Charge Controller 12V/24V Negative Grounded Controller with Built-in Bluetooth and Lithium Battery Low Temperature Protection Function
Reliable Energy When and Where You Need It Most
100% DOD & 10-Year Lifespan: Offers 5000-15000 cycles and a 10-year lifespan, three times longer than lead-acid batteries.
Lightweight & Portable: Weighs 42 lbs, 1/3 of lead-acid batteries, with an energy density of 55.83Wh/lb, ideal for RVs, trolling motors, marine, and off-grid.
Higher Energy (2.56kWh): Equivalent to two 12V 100Ah batteries, supports 4P2S connections for 48V 400Ah setups, providing 20.48kWh energy.
Strict Protection & Fast Charging: Built-in 100A BMS safeguards against various faults. Operating temp: Charge 0°C50°C, Discharge -20°C60°C. Charges fully in 5 hours with a 29.2V 20A charger.
EV-Grade LiFePO4 Cells: GoldenMate 24V 100Ah battery uses UL-certified automotive-grade cells with high energy density, stable performance, and a 3% self-discharge rate.
The 24V 100Ah LiFePO4 battery delivers high energy density, long cycle life, and excellent performance. Ideal for wheelchairs, RVs, camping, marine, golf carts, trolling motors, home energy storage, computer backup, off-grid, solar, and wind energy systems
- Built-in Bluetooth module, you can download the ‘’ChargePro 2.0'' (new version) or the "PVChargePro'' (old version) app for remote monitoring that keeps 300 days of historical data. PS: the app of android version needs to turn on location and Bluetooth to connect. 20A solar controller is equipped with an LCD screen and LED fault indicators, which can check device operating data and modify controller parameters.
- 20A MPPT negative grounded controller offers overcharging/over-discharging/overload/overheat/short circuit/reverse protection and Lithium battery low-temperature protection. The maximum degree avoids the damage due to system fault or installation error. The BMS of low temp protection for Li battery automatically identifies low temperature, stops charging Li battery, and protects its life. This function can be switched on and off manually.
- MPPT controllers of the same series M2420 can work together to charge the same battery with the parallel charge cable (not included), to meet high power charging requirements and 2 controllers should set the same battery pack voltage. Compatible with Flooded, AGM, Gel, and Lithium batteries. User mode allows the buyer to set their charging parameters. 3-Stage Charging: boost, float, and equalization.
- Die-cast aluminum heat sink makes the heat dissipation efficiency higher, which can minimize the power loss from heat. Filling inside the controller with gel is for better PCBA cooling conduction and prevents water and other damages,
- extending the controller service life. With the premium IC and better PCBA, this controller can work under full load even at high temperature environment.
- 24V 20A solar charge controller adopts advanced MPPT technology that ensures fast and stable track of of the maximum power point, high tracking efficiency of up to 90%+, and peak conversion efficiency of 90%+. Maximizing the energy from solar panels to charge your system. Automatically detects 12V, 24V DC system voltages, which is suitable for RVs, Commercial Vehicles, Boats, Yachts, and any off-grid system.
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Model |
M2420 |
M2430 |
M2440 |
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Battery System Voltage |
12V/24V Auto (FLD/GEL/SLD) Manual (Li/User) |
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No-load Loss |
12 ma(12V),10ma(24V) |
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Max Solar Input Voltage |
<100Voc |
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Rated Solar Charge Current |
20A |
30A |
40A |
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Max Solar Input Power |
300W/12V 600W/24V |
450W/12V 900W/24V |
600W/12V 1200W/24V |
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Light Control Voltage |
5V*n |
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Light Control Delay Time |
10s |
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Max Load Output Current |
20A |
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Operating Temperature |
-35ºC ~ +45ºC |
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IP Protection |
IP32 |
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Net Weight |
1.0 kg |
2.0 kg |
2.0 kg |
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Communication Port |
RS485 |
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Operating Altitude |
≤ 3000 meters |
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Controller Dimension(mm) |
180*140*71 |
245*180*82.5 |
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Reliable Energy When and Where You Need It Most
100% DOD & 10-Year Lifespan: Offers 5000-15000 cycles and a 10-year lifespan, three times longer than lead-acid batteries.
Lightweight & Portable: Weighs 42 lbs, 1/3 of lead-acid batteries, with an energy density of 55.83Wh/lb, ideal for RVs, trolling motors, marine, and off-grid.
Higher Energy (2.56kWh): Equivalent to two 12V 100Ah batteries, supports 4P2S connections for 48V 400Ah setups, providing 20.48kWh energy.
Strict Protection & Fast Charging: Built-in 100A BMS safeguards against various faults. Operating temp: Charge 0°C50°C, Discharge -20°C60°C. Charges fully in 5 hours with a 29.2V 20A charger.
EV-Grade LiFePO4 Cells: GoldenMate 24V 100Ah battery uses UL-certified automotive-grade cells with high energy density, stable performance, and a 3% self-discharge rate.
The 24V 100Ah LiFePO4 battery delivers high energy density, long cycle life, and excellent performance. Ideal for wheelchairs, RVs, camping, marine, golf carts, trolling motors, home energy storage, computer backup, off-grid, solar, and wind energy systems
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