# Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel

# SPECIFICATIONS

Application: Charger Controller,Voltage Controller,Wind Controller,Lighting Controller,Solar System Controller

Brand Name: Erdfeldt

Certification: CE,RoHS,FCC

High-concerned chemical: none

Is Smart Device: Yes

Maximum Current: 30A 40A

Model Number: LTM2430

Origin: Mainland China

Features:

High-performance MPPT solar charge controller with high-power inductor, tracking efficiency ≥99%!  
Equipped with an M4 core processor!  
Bluetooth & WiFi remote control.  
Efficient charging, stable output, Connect via mobile phone, use APP for full remote intelligent control！  
  
Max PV Voltage：80V-120V  
Compatible with sealed, gel, flooded, lithium-ion, LiFePO4 and custom batteries.  
Auto-detects and adapts to 12/24/36/48V system voltage  
  
The APP currently supports English, French, German, Spanish, Portuguese, Italian, Polish, Dutch, Japanese and Chinese. More languages will be updated continuously.

Multiple Protections:  
  
\- Low Voltage Protection  
  
\- Overvoltage Protection  
  
\- Overcurrent Protection  
  
\- Overload Protection  
  
\- Short Circuit Protection  
  
\- Battery Reverse Polarity Protection  
  
\- Intelligent Temperature Control

LTM2430【12/24/36V-30A】

Model:LTM2430  
System Voltage:12V/24V/36V Adaptive  
Standby Power Consumption:0.7W~1.2W  
Battery Voltage:10V~43.2V  
Max PV Voltage:80V  
Max Charging Current:30A  
Max Load Current:30A  
Max PV Power：(390W/12V）（780W/24V）（1100W/36V）  
Conversion Efficiency:92%~99%  
MPPT Tracking Efficiency: ≥99%  
USB Interface:5V 2A  
Wireless Communication:Bluetooth BLE5.2/WiFi 2.4G  
RS485 Communication: RS485 interface, default baud rate 115200  
Terminal Block:Max. 6AWG/13mm²  
Operating Temperature:-25°C~+50°C  
Housing Material:Flame-retardant ABS + aluminum alloy heat dissipation back cover  
Weight:0.95kg  
Dimension:168mm×120mm×50mm

LTM2440【12/24/36V-40A】

Model:LTM2440  
System Voltage:12V/24V/36V Adaptive  
Standby Power Consumption: 0.7W~1.2W  
Battery Voltage:10V~43.2V  
Max PV Voltage:80V  
Max Charging Current:40A  
Max Load Current:30A  
Max PV Power:（520W/12V）（1040W/24V）（1040W/36V）  
Conversion Efficiency：92%~99%  
MPPT Tracking Efficiency：≥99%  
USB Interface: 5V 2A  
Wireless Communication: Bluetooth BLE5.2/WiFi 2.4G  
RS485 Communication: RS485 interface, default baud rate 115200  
Terminal Block:Max. 6AWG/13mm²  
Operating Temperature: -25°C~+50°C  
Housing Material:Flame-retardant ABS + aluminum alloy heat dissipation back cover  
Weight:0.95kg  
Dimension:168mm×120mm×50mm

LTM4830【12/24/36/48V-30A】

Model:LTM4830  
System Voltage：12V/24V/36V/48V Adaptive  
Max Charging Current：（12/24V：30A）（36/48V：20A）  
Standby Power Consumption：0.7W~1.2W  
Battery Voltage：10V~57.6V  
Max PV Voltage：120V  
Max Load Current：30A  
Max PV Power:（390W/12V）（780W/24V）（975W/36V）（1040W/48V）  
Conversion Efficiency：92%~99%  
MPPT Tracking Efficiency:≥99%  
USB Interface：5V 2A  
Wireless Communication：Bluetooth BLE 5.2/WiFi 2.4G  
RS485 Communication:RS485 interface, default baud rate 115200  
Terminal Block：Max. 6AWG/13mm²  
Operating Temperature：-25°C~+50°C  
No-load loss：0.7W-1.2W  
Housing Material:Flame-retardant ABS + aluminum alloy heat dissipation back cover  
Weight:0.95kg  
Dimension:171mm×121mm×59mm

LTM4840【12/24/36/48V-40A】

Model:LTM4840  
System Voltage：12V/24V/36V/48V Adaptive  
Max Charging Current：（12/24V：40A）（36/48V：25A）  
Standby Power Consumption：0.7W~1.2W  
Battery Voltage：10V~57.6V  
Max PV Voltage：120V  
Max Load Current：30A  
Max PV Power：（520W/12V）（1040W/24V）（1170W/36V）（1300W/48V）  
Conversion Efficiency：92%~99%  
MPPT Tracking Efficiency：≥99%  
USB Interface：5V 2A  
Wireless Communication：Bluetooth BLE 5.2/WiFi 2.4G  
RS485 Communication：RS485 interface, default baud rate 115200  
Terminal Block：Max. 6AWG/13mm²  
Operating Temperature：-25°C~+50°C  
No-load loss：0.7W-1.2W  
Housing Material:Flame-retardant ABS + aluminum alloy heat dissipation back cover  
Weight:0.95kg  
Dimension:171mm×121mm×59mm

\*Safest Wiring Connection Sequence:  
Connect the battery first (BATTERY)  
Then connect the load (LOAD)  
Finally connect the solar panel (PV)  
Disconnection Sequence:  
Disconnect the solar panel (PV) first  
Then disconnect the load (LOAD)  
Finally disconnect the battery (BATTERY)

![](https://ae-pic-a1.aliexpress-media.com/kf/Sa2e4b491f523484fab00a8ed6f9d4f7dR.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/Se4a40f37a5c14c1c8d5fbec619546676v.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/S9fd882a266ea45948240c8fde73aeb3ad.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/S92f01e29cad74d9bb17051dd9e00c515i.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/S1998eede2e85454096a2e55845431e9aa.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/Se852141761bf46b28803344149b904d5t.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/Sbb23b459659e460aa67cb3b8805228f61.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/Scf869422404541bda85e5bc584d644ddV.png)![](https://ae-pic-a1.aliexpress-media.com/kf/Sd4c522d6ca8a4dbd87520526c1bcb6e3W.png)![](https://ae-pic-a1.aliexpress-media.com/kf/Sc3d61e099be044828449daa8b951db12p.jpg)

![](https://ae-pic-a1.aliexpress-media.com/kf/S0fb683f7329641e285b422df19163149q.png)![](https://ae-pic-a1.aliexpress-media.com/kf/S64dc6510bb9f448dbdd560082a17c1f2i.jpg)![](https://ae-pic-a1.aliexpress-media.com/kf/Sb539ab9813b8444daeb417932a7da92fu.jpg)

## Details

- **Price:** 115.82 EUR - 137.47 EUR
- **Vendor:** Tidesmit
- **Tags:** smart door handles

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Blue / 12 24 36V-40A | 123.56 EUR | In stock |
| Blue / 12 24 36V-30A | 115.82 EUR | In stock |
| Blue / 12 24 36 48V-40A | 137.47 EUR | In stock |
| Blue / 12 24 36 48V-30A | 129.74 EUR | In stock |

## Images

- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel
- Smart MPPT Solar Charge Controller,30A 40A,12V 24V 36V 48V Auto,APP Remote (WiFi/Bluetooth) RS485,120V PV,LiFePO4 Lead Acid Gel

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> Source: [Tidesmit](https://tidesmit.com/products/smart-mppt-solar-charge-controller-30a-40a-12v-24v-36v-48v-auto-app-remote-wifi-bluetooth-rs485-120v-pv-lifepo4-lead-acid-gel-1)
> Updated: 2026-08-23