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Solar Panels / 20A Controller

40A Solar Charge Controller for LiFePO4, AGM, Gel, and Flooded Batteries

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$ 129.99   $90.99   save 30%
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Advanced MPPT Design

The LNEX MPPT solar charge controller utilizes innovative Max Power Point Tracking (MPPT) Technology, achieving up to 99.5% tracking efficiency and 98% peak conversion efficiency. This significantly improves the utilization rate of your solar panel system by approximately 20%-30% compared to regular PWM controllers. Even on cloudy days, it ensures maximized solar panel production.

12V/24V Automatically Detect

This controller automatically detects your system’s voltage, whether it’s 12V or 24V. With a clear LCD screen and multiple LED indicators, it provides detailed information on solar charging, battery operation, customizable parameters, and error codes. It is compatible with various battery types, including LifePo4, LTO, GEL, AGM, Lead-Acid, and Calcium, EFb batteries, making it suitable for deep cycle, starting, marine, car, RV, and powersport applications.

5-Stage Safe Charging

Designed with 5-stage charging (Soft Start, Bulk, Absorption, Equalization, and Float), this MPPT solar controller increases battery life and enhances system performance. Additionally, for Lithium batteries, it offers 4-stage charging (Bulk and Absorption) and Lithium reactivation.

Full System Protection

Built-in protection features include over temperature protection, over voltage protection, over current protection, over charging protection, over discharging protection, over load protection, and short circuit protection. These features ensure full protection for your battery and minimize damage due to system faults or installation errors.

Temp Sensor Port

The controller comes fitted with a Temperature Sensor Port, allowing real-time battery temperature measurement and accurate temperature compensation for stable and constant charging. Note that the temperature sensor is sold separately.

User-Friendly Design

Our MPPT solar charge controller is designed for ease of use with minimal setting steps. You can also customize the voltage settings to suit your specific needs.

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24 Hours Cancellation

We accept order cancellation before Within 24 hours the product is shipped. If the order is cancelled you will get a full refund.

30 Days Returns & Exchanges Policy

If for any reason you are not satisfied with the purchased item,You have 30 days after delivery of your order to return an item.

After 30 days of delivery of your order, we will no longer accept returns.

Refund Process & Return conditions:

To request a return,please email us at:[email protected] ,We will respond within 24 hours after the consumer sends the email (except weekends).
If it is a quality issue, please provide an order number and attach clear photos of the items that represent the issue.
After we receive the returned order, our Quality Assurance department will inspect and verify the condition of the item.Upon acceptance of your return, a refund will be issued to the original form of payment within 1-3 business days.

Make sure your item meets all our return conditions :

Items returned without authorization will not be accepted.
The time frame for return must not exceed 30 days from when the original order was received.
Any promotional gifts must also be returned with your returned item.
All items must be returned in their original condition, without scratches or signs of wear, and must not be resized or altered in any way.
Your return needs to be sent within the given time frame(3-12 working days)
Please make sure you provide us the tracking# and receipt after you return.

Refunds

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, we will credit the credit limit to your credit card or original payment method within 5 business days (bank processing time frame).