--- product_id: 47323964 title: "ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V)" brand: "zhc" price: "COP 13838" currency: COP in_stock: false reviews_count: 8 category: "Lawn & Patio" url: https://www.desertcart.co/products/47323964-zhc-solar-charge-controller-20a-30a-for-lithium-battery-usb store_origin: CO region: Colombia --- # ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V) **Brand:** zhc **Price:** COP 13838 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V) by zhc - **How much does it cost?** COP 13838 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/47323964-zhc-solar-charge-controller-20a-30a-for-lithium-battery-usb) ## Best For - zhc enthusiasts ## Why This Product - Trusted zhc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description SL03 Series Controllers are kinds of intelligent multi-functional solar charge and discharge controller. this series adopts the new 32 bits microprocessor to collect and compute various parameters, which is much more accurate and speedy than the former 8 bit microprocessor, the customized LCD with wide temperature range is with vivid operation interface. the latest proprietary technology solves the problem of voltage display of solar panel. nearly all parameters can be shown and set up flexibly. all of the multi-meter and other voltage and current instruments can be replaced by this controller, which can satisfy your various demands. Speficication Model: 20 Amp Solar Charge Controller Max Charge Current: 20A Max Load Current: 20A Max Voltage of Lolar Panel: <50V Work Voltage:12V/24V Auto Discriminating Stop-Charge-Voltage: default 14.4V/28.8V (8V-35V Settable) Float-Charge-Voltage: default 13.6V/27.2V (8V-35V Settable) Low Voltage Reconnected: default 12.4V/24.8V (8V-35V Settable) Low Voltage Disconnection: default 10.8V/21.6V(8V-35V Settable) No Load Losses Current:<15mA Over-load and Short Circuit: 1.1 times of max current, works for 5 seconds or Short circuit,the load is off at once and the indicator icon flashing,Then wait 30second , it will automatically restart to work. ## Features - Support Variou Kinds of Battery: Lithium Battery, Gel Battery, Car Battery, Even Old Battery, Etc. - Intelligent PWM Charge Mode , 12V/24V Self Adaptive. - Simple Control: LCD Display Operation Data, Working Condition, Switch Load Control Modes, Energy Statistics. - Temperature Compensation Function, Multiple Load Operation Mode - Battery Protections: Battery Back Discharge Protection, Low-Voltage Protection, Transposition Protection, OverLoad and Short-Circuit Protection ## Images ![ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V) - Image 1](https://m.media-amazon.com/images/I/41krlLbirRL.jpg) ![ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V) - Image 2](https://m.media-amazon.com/images/I/411IE3JxZIL.jpg) ![ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V) - Image 3](https://m.media-amazon.com/images/I/41fk1STctcL.jpg) ![ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V) - Image 4](https://m.media-amazon.com/images/I/414UBGgZNmL.jpg) ![ZHC Solar Charge Controller 20A/30A for Lithium Battery with USB, LCD (20A, 12V / 24V) - Image 5](https://m.media-amazon.com/images/I/41UuGiwl5tL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Works well, even if it has some qwerks. *by A***R on Reviewed in the United States on March 27, 2018* Excellent and versatile controller, allows both 'float' and 'absorb' voltages to be set.Mind you, they should be set much differently if you're using a Lithium battery type than if you are using a Lead Acid battery, but since there aren't any limitations as far as the parameters other than being between 9 35 volts, it can work for almost any battery type, provided you're careful to set the voltages correctly.It's very useful that it has a low voltage load cutoff for the load terminals, it saved me from having to add another component.Pros:Customizable voltage settings.Can be used for multiple battery types. (Both different Lithium and Lead Acid types.)Has a low voltage shutoff for the 'Load' terminals. Helpful as a last-ditch effort to save the battery from being flattened in the case of an extended period without sun.Very tolerant of having a larger (higher voltage) panel connected. Even if your battery is nominally ~14.4 volts, a 24-volt nominal panel can be used, even if it is a bit inefficient as this is a PWM (not MPPT) controller.Cons:No heatsink on back. Just a metal (flat) plate. The picture shown isn't actually how it comes. Minus one star for inaccurate description. This didn't affect my use of it, as my use is very low power. If your application is higher power, I'd suggest you modify the heat dissipation by replacing or modifying the back plate to ensure proper cooling.Could have bigger wiring terminals, for a 20 amp controller I found them to be a bit small if you were going to actually use this for 20 amps.Other thoughts:The first unit I received was defective, and had a bug that it would (through overheat or other failure) stop charging the battery every few seconds, and then start again. It would repeat this no matter what I did.The seller was happy to end a replacement though, excellent customer service.Replacement unit I received seemed to work well, and I ordered another as well which also seems fine.Doesn't seem to like charging at very low (<0.2 Amps) available current, as would be typical at morning and dusk from a medium to small sized panel, but I'm not surprised that an inexpensive PWM controller lacks this capability since it is designed to handle ~20 amps. ### ⭐⭐⭐⭐⭐ A must-have for solar DIYers *by M***S on Reviewed in the United States on February 14, 2018* If you're building your own solar PV array from components, YOU NEED THIS DEVICE. Works best with 255 watt, 24 volt panels (Renogy and other popular brands) because this device is made to work with 10 gauge wire. Connect a maximum of two 255w panels or three 100w panels in parallel to one controller, and attach it to a wall using #4 screws. My housemate and I converted my home to PV starting in August '17 and completed it in January '18, with 4 of these controllers regulating our array. These controllers are very easy to install and program. ### ⭐⭐ died out of the blue *by L***R on Reviewed in the United States on February 27, 2020* at first this worked like a charm but out of the blue its no longer charging nor detecting solar panels. troubleshooted the system and solar panels are correctly wired and generating energy. also unit restarts itself randomly --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co/products/47323964-zhc-solar-charge-controller-20a-30a-for-lithium-battery-usb](https://www.desertcart.co/products/47323964-zhc-solar-charge-controller-20a-30a-for-lithium-battery-usb) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-04-23*