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  • 70A 12V/24V/48V PWM Solar Charge Controller
70A 12V/24V/48V PWM Solar Charge Controller
70A 12V/24V/48V PWM Solar Charge Controller
70A 12V/24V/48V PWM Solar Charge Controller
70A 12V/24V/48V PWM Solar Charge Controller
70A 12V/24V/48V PWM Solar Charge Controller

70A 12V/24V/48V PWM Solar Charge Controller

$69.92
| 0 review(s) | Add your review
Optimize your solar power setup with the 70A PWM solar charge controller. Designed for residential and off-grid systems, it efficiently regulates battery charging, protecting against overcharge and discharge. With multi-voltage support, PWM charge controller adapts to 12V, 24V, or 48V. Ideal for homes, cabins, or RV solar installations. This controller ensures stable power, longer battery life, and easy monitoring.
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Delivery date: 6-12 days
SKU: ATO-PWM-K7-70A
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  • Overview
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Overview

Inverter.com 70A 12V/24V/48V PWM solar charge controller is a high-performance solar regulator designed for residential and commercial off-grid systems. It supports 12V, 24V, and 48V battery configurations and delivers a maximum charging current of 70 amps, ensuring efficient energy management for solar panels. Using advanced PWM (Pulse Width Modulation) technology, it optimizes battery lifespan and prevents overcharging, over-discharging, and short circuits. Boost your solar system's reliability today with this high-performance, easy-to-install controller.


Features:

  • Advanced PWM Technology for Efficient Charging. The PWM solar charge controller keeps your solar panels and battery connected constantly, automatically reducing voltage as the battery approaches full charge to minimize power loss.
  • Reliable Multi-Protection System. It protects your setup with over-current, short-circuit, open-circuit, and reverse connection safeguards, ensuring safe and worry-free operation.
  • Smart Three-Stage Charging Management. It charges your battery efficiently with three stages: bulk (constant current), absorption (constant voltage), and float charging, extending battery life.
  • Easy Installation and User-Friendly Design. Simple, straightforward wiring between solar panel, battery, and load makes setup fast and hassle-free.
  • Compatible with Multiple Battery Types. The 70 amp PWM controller works seamlessly with lead-acid, lithium, and other battery types, making it versatile for different solar setups.

Details:

70a pwm solar charge controller with 4 usb output

Supports 4 Devices Simultaneously

Charge up to 4 devices simultaneously – compatible with most USB-powered gadgets, perfect for users with multiple devices. Streamlined system integration eliminates extra converters, making installation simple, clean, and hassle-free. Designed for everyday use, this PWM controller maximizes solar energy efficiency while boosting convenience and practicality. Ideal for home, outdoor, or mobile solar setups.
70a pwm solar charge controller with LCD display

LCD Display

70amp PWM solar charge controller with LCD display offers real-time monitoring, intuitive data visibility, and user-friendly control. It improves battery charging efficiency with 3-stage management, ensures system safety protection, and provides clear status updates for current, and battery status, ideal for reliable, off-grid solar power management and optimized energy usage.
70a pwm solar charge controller with multiple connection ports

Multiple Connection Ports

Multiple connection ports delivers unmatched flexibility and convenience for any solar system. Connect solar panels, batteries, loads, streamline your energy management. Its multi-port design allows easy system expansion, efficient power distribution, and simplified wiring, making your solar setup more organized and scalable.


Applications:

  • Solar Illuminating Light – Efficient Solar Lighting System. It helps manage solar energy storage and provides stable charging protection for solar lighting systems. It is ideal for solar garden lights, pathway lights, security lights, and outdoor illumination projects, ensuring reliable lighting performance during the night.
  • DIY Solar Power Project – Flexible Off-Grid Solar Solution. Designed for DIY enthusiasts, the 70A PWM solar charge controller is a practical choice for building customized solar power systems. It supports 12V/24V/48V battery systems and helps users create reliable off-grid applications for cabins, workshops, RVs, and small energy projects.
  • Small Solar Irrigation System – Smart Energy Management for Farming. The controller provides safe and stable power management for small solar irrigation systems. It helps protect batteries from overcharging and deep discharge.
PWM solar charge controller for solar illuminating light

Solar Illuminating Light

PWM solar charge controller for small solar irrigation system

Small Solar Irrigation System

PWM solar charge controller for diy solar power project

DIY Solar Power Project

PWM solar charge controller for RV

Solar RV

Specs
Model ATO-PWM-K7-70A
System Voltage 12V/24V/48V auto
Rated Charging Current 70A
Max Solar Input Battery to solar panel pairing: 12V: 15-23V; 24V: 30-46V; 48V: 60-85V
Battery Type b1= lead acid battery 12V/24V/48V auto;
b2= lithium battery 3 strings 3.7V=11.1V;
b3= lithium iron phosphate battery 4 strings 3.2V=12.8V
Charge Cut-off Voltage 14.4V(b1); 12.6V(b2); 14.6V(b3)
Discharge Cut-off Voltage 10.7V(b1); 9V(b2); 10V(b3)
Discharge Recovery Voltage 12.6V(b1); 10.5V(b2); 12V(b3)
Voltage of Open Light Solar panel 8V (Light lights delay)
Voltage of Close Light Solar panel 8V (Light off delay)
USB Output 4 way USB output, 5V/2A(max)
Standby Current <10mA
Operating Temperature -35℃~60℃
Dimension 220*160*45mm
Protection Level IP65
Weight About 420g (net weight); 500g (gross weight)

The above is for a 12V voltage system. If a 24V system is used, multiply by 2; if a 48V system is used, multiply by 4.

 

Dimension & Wiring:

70a PWM solar charge controller dimension

Note: 1. Please connect the battery first before connecting the solar panel.

FAQ

Q1: Can this 70A solar charge controller work in extreme temperatures?

This 70A solar charge controller is designed to operate reliably in a wide temperature range from -35°C to +60°C (-31°F to 140°F), making it suitable for various outdoor solar applications. However, continuous use in extreme cold or high heat is not recommended, as harsh conditions may affect performance and lifespan.

Q2: How does a 70A PWM solar charge controller improve battery life?

A 70A PWM charge controller improves battery life by delivering smart, stable charging and preventing common damage. It uses pulse width modulation technology to regulate voltage, avoiding overcharging and overheating. Key benefits include extended battery lifespan, and optimized charging efficiency. With automatic charge stages (bulk, absorption, float), it ensures consistent performance, making it ideal for solar power systems, off-grid setups, and DIY energy solutions.

Q3: Is a 70A PWM solar charge controller enough for a large off-grid solar system?

A 70A PWM solar charge controller can work for medium-sized off-grid solar systems, but it may not be enough for large solar installations. Its capacity depends on the battery voltage, solar panel total wattage, and daily energy needs. Large off-grid systems often require multiple controllers or higher-capacity MPPT controllers for better efficiency and future expansion.

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