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Description
SR-HC2440-C PWM SOLAR CONTROLLERPWM Solar Charge Controller. Charging Current 40A, Load Current 40A, with RS485 Communication. It supports such 5 Battery types as custom, Sealed Lead Acid (Factory Default), Gel Lead Acid, Flooded (Open Cell) Lead Acid, Lithium Battery (Default LIFEPO4) PWM Solar Charge Controller Feature Products adopt 32 bit high speed main control chip and large screen LCD, with adjustable charging and discharging parameters It supports such five battery types as
PWM Solar Charge Controller. Charging Current 40A, Load Current 40A, with RS485 Communication. It supports such 5 Battery types as custom, Sealed Lead-Acid (Factory Default), Gel Lead-Acid, Flooded (Open Cell) Lead-Acid, Lithium Battery (Default LIFEPO4)
PWM Solar Charge Controller
Feature
- Products adopt 32-bit high-speed main control chip and large-screen LCD, with adjustable charging and discharging parameters
- It supports such five battery types as custom, sealed lead-acid (factory default), gel lead-acid, flooded (open cell) lead-acid, lithium battery (default lithium iron phosphate
- It supports the RS485 communication interface, and the baud rate is adjustable which can support maximum 115200kps
- Automatic identification of lead-acid battery system voltage.
- The complete multi-stage PWM charging management can be set to off-load charging for better support of voltage-sensitive loads.
- Temperature compensation is adopted to automatically adjust charging parameters
- Rich load working modes are easy to use in various DC loads.
- Protective functions including built-in reverse polarity protection, open circuit protection, high temperature protection, and overcurrent/short circuit protection (can be set) are self-recovery type without damage to the controller.
- Dual MOS anti-backflow circuit is equipped with ultra-low heat generation
- Lithium battery activation function is provided.
- The user-friendly browsing design and dynamic interface are convenient and intuitive for operation.
OPERATION INSTRUCTIONS
- The first step is to connect the battery: if the connection is correct, the controller screen will light up, otherwise, please check whether the connection is correct.
- The second step is to connect the solar panel: if there is strong enough sunlight (the voltage of the panel is higher than the voltage of the battery), the sun icon on the LCD screen will light up, otherwise, please check whether the connection is correct.
- The third step is to connect the load: connect the load cable to the load output terminal of the controller, and the current should not exceed the rated current of the controller.
- The controller will generate heat during operation, and it is recommended to install it in a ventilated and heat-dissipating environment.
- Select cables with sufficient capacity to avoid excessive loss on the line and misjudgment by the controller.
- A common positive electrode design is applied in the controller. If grounding is required, please ground the positive electrode.
- It is important to fully charge the battery frequently. The interval should be at least once a month, otherwise, it will suffer permanent damage. The battery can only be fully charged when more energy enters the battery than used by the load. Users should keep this in mind when configuring the system
- Please check whether each wiring terminal of the controller is locked, otherwise, the terminal will be vulnerable when the current is excessive.
Specifications
| SR-HC24-C SERIES TECHNICAL PARAMETER TABLE | ||
| MODEL | HC2440-C | |
| RATED CURRENT | CHARGE | 40A |
| LOAD | 40A | |
| CURRENT DISPLAY FUNCTION | Charging and discharging current display | |
| SYSTEM VOLTAGE | 12V/24V/U--(automatic identification) | |
| RATED POWER | 12V/600W 24V/1200W | |
| NO-LOAD LOSS | <7mA/12V ; <10mA/24V | |
| MAXIMUM PV INPUT VOLTAGE | Start the protection and stop charging when the voltage is above 55V. Continue to charge when the voltage is below 50V. | |
| MAXIMUM ALLOWABLE VOLTAGE AT THE BATTERY END | <32V | |
| BATTERY TYPE ¹ | b03(FLD) | |
| OVER - VOLTAGE PROTECTION | 16.0V | |
| EQUALIZING CHARGING VOLTAGE | 14.8V | |
| BOOST CHARGING VOLTAGE | 14.6V | |
| FLOAT CHARGE VOLTAGE | 13.8V | |
| CHARGING RECONNECT VOLTAGE | 13.2V | |
| OVER - DISCHARGE RECONNECT VOLTAGE | 12.6V | |
| OVER- DISCHARGE VOLTAGE | 11.1V | |
| EQUALIZING CHARGING TIME | 2H | |
| BOOST CHARGING TIME | 2H | |
| TEMPERATURE COMPENSATION | -3.0mV/°C/2V | |
| LIGHT CONTROL VOLTAGE | Light control on 5V, x2/24V; |
|
| TURN-ON DELAY OF LIGHT CONTROL | 1 minute | |
| COMMUNICATION METHOD | RS485 | |
| BAUD RATE | 2400~115200bps | |
| COMMUNICATION PROTOCOL | ModBus | |
| OPERATING TEMPERATURE | -35°C to 60°C | |
| ALTITUDE | ≤3000m | |
| PROTECTION GRADE | IP32 | |
| NET WEIGHT | 322g | |
| PROTECTION FUNCTION | Battery panel short-circuit protection; battery panel and battery reverse connection protection | |
| Over-temperature protection, load overload protection and short circuit protection | ||
| PRODUCT DIMENSIONS | 159*100*39 | |
| ¹Parameters when the battery type is 12V; For a 24V system, the relevant voltage points are automatically multiplied by 2; For a 48V system, the relevant voltage points are automatically multiplied by 4 | ||
Downloads
Additional Information
| Device | Controller |
| Type | PWM | Solar Charge |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 6 reviews
Sort
Product Reviews
★★★★★ 5
A Humorous Twist on Tough Dog Toys!
Size: Large, Color: Lobster 3 Pack
I recently purchased the Nylabone Power Chew Dog Toy Pack for Aggressive Chewers from Amazon, and I must say, these toys have been a hilarious hit with my furry friend. As a dog parent of a strong and determined chewer, finding toys that can withstand their chewing prowess is a top priority, and these toys deliver both durability and a touch of humor.
The pack consists of three large/giant-sized toys in the shape of a lobster, cheese, and broccoli. The unique and amusing design puts a smile on my face every time I see my dog interacting with them. The unexpected twist brings a playful element to our daily playtime sessions, making it a fun and engaging experience for both of us.
When it comes to durability, these toys excel. My dog can be quite aggressive with their chewing, and I've struggled to find toys that can withstand their powerful jaws. However, the Nylabone Power Chew toys have proven to be impressively tough and durable. Despite rigorous chew sessions, these toys have remained intact, with no signs of wear or damage. They provide a reliable outlet for my dog's chewing instincts without the risk of shredding or ingesting any harmful materials.
The textured surfaces of these toys add an extra layer of interest for my dog. The ridges and raised bumps provide sensory stimulation, promoting healthy oral hygiene and helping to clean teeth and gums as they chew. I appreciate the added dental benefits these toys offer, as it helps maintain my dog's dental health while they engage in play.
I also appreciate the size options available in this pack. Large and giant-sized dogs often require bigger toys to accommodate their larger mouths and chewing strength. The included toys are appropriately sized for larger breeds, ensuring a comfortable grip and maximum enjoyment during play sessions.
As a bonus, these toys are made from high-quality, non-toxic materials, so I have peace of mind knowing that my dog can safely interact with them. Safety is a top priority for me, and Nylabone consistently delivers in that regard.
In conclusion, if you have an aggressive chewer and are in search of durable, funny, and engaging dog toys, the Nylabone Power Chew Dog Toy Pack is a fantastic choice. These toys provide hours of entertaining play, withstand even the most determined chewers, and offer dental benefits. Embrace the humorous twist and enjoy watching your furry friend engage in safe and engaging play with these fantastic toys.
Invest in the Nylabone Power Chew Dog Toy Pack today and let the lobsters, cheese, and broccoli bring laughter and durability to your dog's playtime!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2023
★★★★★ 5
Solid win for any chewing pup!
Size: Small, Color: Broccoli 3 Pack, Size: Small, Color: Broccoli 3 Pack
My pup loves them! Long lasting plus health benefits for his teeth, 10/10 would recommend 💖
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Shark dog approved
Size: Large, Color: Broccoli, Size: Large, Color: Broccoli
My new baby shark.... I mean puppy really enjoys chewing. I can't just give her a ton of pig ears or bully sticks all day, which she would definitely love, so I'm constantly looking for well made chew toys. I'd put this right up with Kong. Very durable and nice. I also love the different textures, she seems to also love it. She can gnaw at the top and chew on the stem. She wanted it as soon as I opened it - it does smell like bacon but I haven't taken a chomp at it to be able to write a complete review!
My dog is about 23 lbs but I can see a 80 lb dog chew this, it's not small.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
★★★★★ 4
So cute
Size: Large, Color: Pumpkin
My French Bulldogs have really strong jaws and are aggressive chewers. These really are sturdy and last a good amount of time. They are a bit heavy and awkward for my dogs to hold onto but they do like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 5
Cute toy and super tough!
Size: Small, Color: Lobster
My small dog is a serious chewer, and this lobster toy has been holding up great. Usually, he destroys toys within a day, but this one’s still going strong after a couple of weeks. The shape is perfect — easy for him to grab and chew, and the little claws keep him entertained.
The filet mignon flavor must be good because he goes right for it every time. It’s sturdy without being too hard on his teeth, and it doesn’t leave any mess or pieces behind.
If you’ve got a small but mighty chewer, this one’s definitely worth it. Cute design, lasts forever, and keeps my pup busy — total win. 🦞🐾
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
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