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HQST 40A MPPT Solar Charge Controller with Parallel Charging & Bluetooth

SKU: HCC-40MPPTN-G1x2-HCPHCCPC
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$219.99
Free shipping.

  • [Low-Temp Cut-Off Protection for LiFePO4] The HQST 40A MPPT solar charge controller features low-temp charging (below 32℉) and discharging (below 5℉) cut-off protection for LiFePO4 batteries, preventing damage to your valuable batteries. You can manually switch on and off this function. The controller can also activate dormant LiFePO4 batteries that have turned off due to over-discharging.
  • [Smart APP Control & LCD Display] With a built-in Bluetooth module, you can download the "ChargePro 2.0" (new version) or "PVChargePro" (old version) app for remote monitoring, which stores 300 days of historical data. The LCD screen and LED fault indicators allow you to check device operating data and modify controller parameters. Note: The Android version of the app requires location and Bluetooth to be turned on for connection.
  • [High-Efficiency Charging] The HQST 12V/24V 40A solar charge controller uses advanced MPPT technology to quickly and stably track the maximum power point, with a high tracking efficiency of up to 99% and a peak conversion efficiency of 98%. This maximizes energy from solar panels to charge your system. It auto-detects 12V or 24V DC system voltages, with a maximum load output current of 20A. If the load exceeds 20A (240 watts), overvoltage protection will turn off the output.
  • [Parallel Charge Function] Two HQST MPPT controllers (M2420N/M2440N/M4860N) can work together to charge the same battery pack using a parallel charge cable (not included), meeting high power charging requirements. Both controllers should be set to the same battery voltage. Our negative-grounded controller provides protection against overcharging, over-discharging, overload, overheating, short circuits, and reverse polarity, maximizing protection against system faults or installation errors.
  • [Higher Heat Dissipation Efficiency & Full-Load Working] The die-cast aluminum heat sink enhances heat dissipation efficiency, minimizing power loss due to heat. The internal gel filling improves PCBA cooling conduction and protects against water and other damages, extending the controller's service life. Equipped with a premium IC and superior PCBA, this controller can operate at full load even in high-temperature environments.
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Shipping, Returns & Refunds Policy

Shipping

  • Free standard ground shipping on orders $49.99+ (before tax).
  • Orders below $49.99 are charged a $5 flat shipping fee.
  • Free shipping applies within the contiguous United States only.
  • Oversized, heavy, or restricted items may be excluded (noted on product page).
  • Orders are processed within 1–3 business days (excluding weekends and holidays).
  • Estimated delivery time is 2–7 business days after shipment.
  • Orders may ship in multiple packages, each with its own tracking number.
  • A valid street address is required; some items cannot be delivered to PO Boxes.
  • Shipments cannot be rerouted once shipped.
  • Shipping to Alaska and Hawaii is available with surcharges.
  • International shipping availability varies by location; customers are responsible for customs clearance and duties.

Order Cancellation

  • Orders can be canceled within 4 hours of placement, before shipping begins.
  • Once shipped, cancellation or interception cannot be guaranteed.

Returns

  • Return requests must be submitted within 30 days of delivery.
  • Items must be unused, undamaged, unmodified, and returned in original packaging.
  • A Return Merchandise Authorization (RMA) is required before returning any item.
  • Modified products are not eligible for return.

Return Shipping Costs

  • HQST covers return shipping only if the product was damaged during shipping, defective, or an incorrect item was delivered.
  • For all other reasons, return shipping costs are the customer’s responsibility.

Refunds

  • Refunds are issued within 7–10 business days after inspection.
  • Refunds are processed to the original payment method.
  • Damage caused by improper installation or handling is not eligible for refund.

Replacements

  • Shipping or manufacturing damage must be reported within 30 days, with supporting photos.
  • Replacement items ship via standard shipping only and cannot be expedited.
  • Replacements can only be shipped to the original country of purchase.

Third-Party Purchases

  • Orders placed through third-party sellers are subject to the seller’s return policy.
  • HQST provides warranty replacements only for eligible third-party purchases.

Contact

For shipping, returns, refunds, or replacements, contact:
sales@myhqsolar.com

Description
Specs
Downloads
Reviews
Model No.
M2440N
System Wiring Grounded
Negative Grounded
Battery System Voltage
12V/24V Auto (FLD/GEL/SLD/USE) Manual (Li/User)
No-load Loss
12ma(12V),10ma(24V)
Max Solar Input Voltage
<100Voc
Rated Solar Charge Current
40A
Max Solar Input Power
600W/12V 1200W/24V
Light Control Voltage
5V*n
Light Control Delay Time
10s
Max Load Output Current
20A
Operating Temperature
-35ºC ~ +45ºC
IP Protection
IP32
Net Weight
2.0kg
Communication Port
RS485
Operating Altitude
≤ 3000 meters

HCC-40MPPTN-Manual

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HCC-40MPPTN-App

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Reviews

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