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12V/24V 30A Buck Boost DC-DC Solar Charge Controller with MPPT

SKU: HCC30DCSR-G1-US
$179.99 $305.99

  • 【Intelligent Dual Power Input】Charging Supports both solar panel and engine power (EXT) inputs. With its advanced charging logic, this DC to DC charger prioritizes solar power when available. If solar power is insufficient, it uses both solar and generator power. When solar power is very low, it relies solely on the generator (starter battery) while keeping the starter battery within a safe voltage range. It provides a max of 30A total output regardless of the charging method.
  • 【12V-24V Buck Boost Battery Charger】Featuring buck and boost charging logic, this on board battery charger supports both 12V and 24V systems. It can boost 12V power to charge a 24V battery and buck 24V power to charge a 12V battery. This allows your auxiliary battery to charge your starter battery, and vice versa, if your battery systems have different voltages. Note that the buck and boost functions do not apply to solar array systems.
  • 【High-Efficiency MPPT Solar Charge Controller】This DC to DC charger with MPPT uses advanced technology to achieve up to 99% tracking efficiency and 98% peak conversion efficiency, about 30% higher than PWM controllers. It features smart 3-phase charging stages (Bulk, Boost, Float) to regulate the entire charging process, ensuring batteries are accurately charged to 100% at the correct voltage levels. It supports LiFePO4, sealed, AGM, GEL, flooded, and user-customized battery types.
  • 【Smart Bluetooth App Control & Monitoring】Equipped with a built-in Bluetooth module, this 12V/24V DC to DC battery charger works with the "ChargePro 2.0" app for real-time monitoring and stores up to 300 days of historical data. You can also set battery parameters easily via the app. Note: Bluetooth connection is effective within a 10m/33ft range (in an unobstructed area).
  • 【All-Round Safety Protection & High-Temp Resistant Materials】This DC battery charger offers all-around safety with multiple protections, including PV over-voltage, PV reverse polarity, battery over-voltage, overcharge, battery reverse polarity, EXT input over-voltage, EXT reverse polarity, overheating, and high ambient temperature safeguards. The connection terminals are made from high-temp resistant materials, ensuring safety even under high current conditions.
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Shipping Policy

HQST Solar offers free shipping for select products on domestic orders made within the contiguous 48 states. For some reason,orders require approximately 2-3 business days to process and 3-5 business days to reach their destination. Expedited shipping is also available, however, not all products are eligible for it. Upon shipment, a tracking number will be provided for you.

Shipping is possible for orders to Alaska, Hawaii, and Puerto Rico, however, there are surcharges involved. Similarly, we are able to ship internationally as well depending on the location. For more accurate cost estimates and to determine if shipping is available in your area, please contact us at sales@myhqsolar.com.

Please note, we are unable able to deliver products or expedite orders for PO Box addresses. We also cannot reroute a shipment after it has left our warehouse. Confirm the shipping address clearly before placing an order, if the replacement is caused by the wrong shipping address, please pay the replacement shipping cost.

If your order arrives with noticeable damage, please note it with the delivery company right away, and then contact us so that we can take action accordingly. If you later discover missing items or defective units, contact us directly within 30 days at sales@myhqsolar.comfor assistance.


Return Policy

If you decide to return your purchase, HQST Solar will allow for a refund for new, undamaged, and unmodified products within 30 days of receiving the order. Returns submitted for a refund may be subject to shipping costs.

HQST Solar will pay for shipping in the following situations: carrier damage, a defective product, a product does not match advertising, receiving an incorrect product, or a product was an extra item that was not ordered. For any other reasons, customers are responsible for shipping fees.

Replacement Policy

If there is any issue with your product(s), please contact us at sales@myhqsolar.com.

A representative will assist you in troubleshooting your product(s) and if any damage occurred due to the manufacturing or our shipping process, you will be eligible for a refund or replacement. In the event a replacement is necessary, we will arrange for return shipping of the old part. Once the part has been received and inspected, we will ship out the replacement. If damage occurs due to improper handling during the setup or installation whether done professionally or by the customer, then the product is no longer eligible for replacement or refund.

Any replacements due to shipping errors or damages in shipment will be sent out via standard shipping. Replacement parts cannot be expedited.

For further inquiries, please contact sales@myhqsolar.com.

Description
Includes
Specs
Downloads
FAQ
Reviews

HQST 12V/24V 30A DC to DC Charger, Buck Boost Battery Charger, MPPT Solar Charge Controller, Dual Input Charger, with Smart Bluetooth APP Control, for LiFePO4, Sealed, AGM, GEL, Flooded Batteries

If you're looking for a battery charger that keeps your auxiliary and starter battery systems charged during RV road trips, rain or shine, HQST's innovative 2-in-1 12V/24V 30A DC to DC Buck Boost MPPT Solar Charge Controller is the perfect choice!
With exclusive intelligent charging logic, this dual-input DC to DC battery charger switches to solar charging in sunlight and transitions to generator charging in low light, ensuring uninterrupted power for your battery systems. With boost and buck logic, it supports 12V and 24V systems, including 12V to 24V and 24V to 12V conversions.
The high-efficiency MPPT provides up to 30% more efficiency than conventional PWM, and the Bluetooth app allows for easy real-time data monitoring and settings adjustments.

Dual Input Charger
Boost-Buck Charger
Download
Paring
Control & Settings
What's in the Box

Silent Heat Dissipation

Our DC to DC charger is equipped with an integrated heat sink on the back, ensuring efficient heat dissipation and optimal charging performance.

Starter Battery Protection

Our on-board charger features smart detection protection, ensuring your starter battery always has enough power for your vehicle.

Use Provided Terminals

Our terminal connection part features high-temp resistant materials that won’t deform under high currents, reducing the risk of damage.

Multi-Alternator Compatibility

Compatible with traditional and smart alternators, this DC-DC charger features an IGN port for auto-activation with smart alternators.

30A DC to DC Buck-Boost MPPT Solar Charge Controller

x 1

User Manual

x 1

Temperature Sensor Cables (6.6 ft)

x 2

Mounting Stickers (for Temp Sensor)

x 2

Connection Terminal Accessories

x 8
Input Voltage
Battery: 8V - 32V; PV: 60 Voc Max.; EXT: 8V - 25V
Input Amps (Max.)
30 A
Output Voltage
14.5 x N (±0.1) VDC; *N=1 (12V) / 2 (24V)
Output Amps (Max.)
30 A
Battery Voltage Compatibility
12V / 24V
Power Consumption
450W (12V) / 900W (24V)
Efficiency
Tracking Efficiency: 99%; Peak Conversion Efficiency: 98%
Battery Types
Lithium Iron Phosphate (LiFePO4), Sealed, AGM, GEL, Flooded (FLD), User-customized
EXT Port Compatibility
DC Alternator, Adapter, Charger, Power Supply, Battery
Operating Temperature Range
-13℉～113℉(-25℃～45℃)
Storage Temperature Range
-31℉～149℉ (-35℃～65℃)
Communication Port
RS485, CAN
Wiring Cable
8 AWG (Recommended)
System Wiring Grounding
Negative Grounding
Dimensions
12 x 6.9 x 3 in / 305 x 175 x 76mm
Product Net Weight
5.4 lbs / 2.45 kg
Material and Workmanship Warranty
1-year material warranty

HCC30DCSR-Manual

Download

Can I use this charge controller with solar panels and a generator simultaneously?

Yes, it supports dual input from both solar panels and generators. The intelligent charging logic prioritizes solar power and seamlessly switches to generator power when solar input is insufficient.

Can this charge controller charge different voltage systems?

Yes, it can charge both 12V and 24V battery systems and can handle 12V input to charge a 24V battery and 24V input to charge a 12V battery, thanks to its buck and boost functionality. Note: buck and boost functions do not apply to solar array system.

Is there protection for my starter battery when it charges the auxiliary battery?

Yes, it has intelligent protection to ensure your starter battery always has enough power for your vehicle. It will detect the voltage of the starter battery, and if it drops below 12.8V, it will cut off the output to preserve its power.

Is there any heat dissipation design?

Yes, it features an integrated heat sink design on the back for efficient heat dissipation and maximum charging efficiency. Additionally, the connection terminals use high-temp resistant materials, ensuring safety even under high current conditions.

How does the MPPT feature benefit my charging system?

MPPT tech optimizes the power output from your solar panels or other power sources, ensuring that your batteries receive the max possible charge even under varying conditions, which improves efficiency by up to 30% compared to PWM controllers.

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