PWM Solar PV Charge Controller 10A/20A/30A | 4Boats
MD1209/10
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PWM Solar PV Charge Controller
Available in 10A, 20A, and 30A Models
This PWM (Pulse Width Modulation) Solar PV Charge Controller is a high-performance regulator designed specifically for marine, caravan, and off-grid photovoltaic systems. Equipped with an industrial-grade microcontroller and a clear LCD display, it intelligently manages the charging and discharging of lead-acid batteries to maximize their lifespan and ensure system safety.
Key Features
- β 12V/24V Auto-detect system voltage
- β Large LCD for real-time monitoring
- β Dual USB Ports (5V/3A) for mobile charging
- β Programmable Load Timer (Dusk-to-Dawn)
- β Adjustable charge/discharge thresholds
Technical Specs
| System Voltage: | 12V / 24V Auto |
| Max PV Input: | 50V |
| USB Output: | 5V / 3A (Max) |
| Float Charge: | 13.7V (Adjustable) |
| LVD Threshold: | 10.7V (Adjustable) |
| LVR Threshold: | 12.6V (Adjustable) |
| Dimensions: | 150 x 78 x 35 mm |
| Weight: | Approx. 150g |
Compatibility / Fitment Guide
| Battery Type | Application | Notes |
|---|---|---|
| Sealed / AGM | Marine & RV | Factory Default (14.4V) |
| Gel | Solar Lighting | Preset 14.2V |
| Flooded | Off-Grid Systems | Preset 14.6V |
OEM Cross Reference
| Part Series | YJSS Series, KW1210, KW1220, KW1230 |
| Common Brands | PowMr, ECO-WORTHY, Y-Solar (Equivalent Variants) |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet original equipment (OE) performance standards for off-grid PV power regulation.
How do I know which amperage (10A/20A/30A) I need?
Select the model based on your solar panel output. For example: A 100W panel (approx 5.5A) works best with the 10A model. For 200W+ systems, the 20A or 30A model is recommended to ensure safety margins.
Is this controller compatible with Lithium (LiFePO4) batteries?
This specific model is designed for lead-acid battery types (Sealed, Gel, Flooded). It is generally not recommended for Lithium batteries unless your battery includes an internal BMS that accepts PWM lead-acid charging curves.
Note: Always connect the battery first before the solar panel to allow the controller to detect the correct system voltage (12V or 24V).
For the products under Β£150 the shipping is Β£6.99.
Free delivery for most items over Β£150.