Name: PWM Solar PV Charge Controller 10A/20A/30A | 4Boats
Brand: MidMarine
SKU: MD1209/10
Price: 10.99 GBP
Availability: InStock

PWM Solar PV Charge Controller 10A / 20A / 30A - 4Boats

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Style

10A

20A

30A

£10.99

Tax included.

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.

RELIABILITY: Built with dual MOSFET reverse current protection and an intelligent 4-stage PWM charging algorithm to prevent overcharging and battery sulfuration.

Key Features

✔ 12V/24V Auto-detect system voltage
✔ Large LCD for real-time monitoring
✔ Dual USB Ports (5V/3A) for mobile charging
✔ Programmable Load Timer (Dusk-to-Dawn)
✔ 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 £150 the shipping is £6.99.

Free delivery for most items over £150.

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PWM Solar PV Charge Controller 10A/20A/30A | 4Boats