--- product_id: 60229575 title: "JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting" brand: "jzk" price: "€ 41.76" currency: EUR in_stock: true reviews_count: 13 category: "Jzk" url: https://www.desertcart.at/products/60229575-jzk-20a-intelligent-solar-charge-controller-with-lcd-display-usb store_origin: AT region: Austria --- # 20A max current Large LCD display 12V/24V auto detection JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting **Brand:** jzk **Price:** € 41.76 **Availability:** ✅ In Stock ## Summary > 🔆 Charge smarter, live greener — never miss a watt! ## Quick Answers - **What is this?** JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting by jzk - **How much does it cost?** € 41.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/60229575-jzk-20a-intelligent-solar-charge-controller-with-lcd-display-usb) ## Best For - jzk enthusiasts ## Why This Product - Trusted jzk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crystal-Clear LCD Display:** Real-time voltage and battery status at a glance—stay informed, always. - • **Power-Packed 20A Capacity:** Handles up to 20 amps for reliable solar charging performance. - • **Smart 12V/24V Auto Detection:** Automatically adapts to your system voltage for seamless integration. - • **Robust Multi-Layer Protection:** Built-in safeguards against overcurrent, short circuits, and reverse polarity keep your system safe and durable. - • **Dual USB Ports for On-the-Go Charging:** Charge your devices directly from the controller—efficiency meets convenience. ## Overview The JZK 20A Intelligent Solar Charge Controller is a compact, high-efficiency device designed for 12V/24V solar systems. Featuring a large LCD display, dual USB ports, and comprehensive protection mechanisms, it ensures optimal battery management and device charging. With adjustable charging parameters and a durable, moisture-resistant aluminum build, it’s perfect for home, industrial, and commercial solar setups seeking reliable, smart energy control. ## Description **This solar panel charge controller has built-in over-current protection, short circuit protection, open circuit protection and reverse protection. * This solar charge controller has a large LCD display, * Displays the voltage. * Show battery power. * Dual USB charging interface. *Charging parameters and discharging parameters are adjustable. * Light control and time delay are adjustable. * Dual MOS intrusion prevention circuit, extremely low heat generation, low failure rate. * Fully 4-stage PWM charging management. * The solar charge controller is easy to set up and use. * All necessary protective devices are available. * Adjustable control parameter of the system. *This solar panel charge controller has a low failure rate and lasts a long time. *This solar panel controller is electronically secured and requires no replacement parts. *This solar controller is protected with a moisture-resistant coating, minimizing damage from moisture and insect nesting. Rated voltage: 12V/24V, automatic detection. Rated current: 20 A. Max. PV voltage: 46 V. Max. PV input power: 260W (12V) / 520W (24V) Working temperature: -35 °C to + 60 °C. Application: Home, Industrial, Commercial Standby current: <10 mA. 12 volt system (if it is a 24 volt system, data x2): Float charge: 13.7 V (standard, adjustable). Discharge stop: 10.7 V (standard, adjustable). Reconnect discharge: 12.6V (default, adjustable). Size: 135 x 70 x 32 mm. Weight: 150g. The package includes: 1 x solar charge controller. 1 x English User Manual Review: So far so good - Had this just over a week and it seems to be working very well. Instructions fairly basic but good enough to set it up without any problems. Setting the float voltage to 13v (the lowest setting) seems to keep the battery on trickle charge at a constant 12.6v when hooked up to a 10w solar panel. Would have liked to keep it a little lower say 12.4v but not sure that is possible with this controller. That said, perfectly happy with it and full marks for something that only cost £10. Can't comment on long term durability, not had it long enough. Review: Solar charger, just works. - This controller seems to be working perfectly. Easy to install, just make sure you connect the battery first, then the solar panels then any auxiliary device if needed. ## Features - Rated voltage: 12V/24V vehicle identification. Rated current: 20A. Maximum PV voltage: 46V. Maximum PV input power: 260W (12V) / 520W (24V) - This solar panel charge controller features a large LCD display, voltage display, battery status lights and dual USB charging interface - This solar charge controller has built-in overcurrent protection, short circuit protection, open circuit protection and backflow protection. - The charging and discharging parameters are adjustable. Light control and time delay are adjustable. Dual MOS intrusion prevention circuit, extremely low temperature development, low failure rate. - The solar charge controller is easy to install and use. Dimensions: 135 x 70 x 32 mm Weight: 150 grams Suitable for household, industrial, commercial, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071ZZ2S84 | | Amperage Capacity | 20 Amps | | Best Sellers Rank | 100,660 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 94 in Solar & Wind Energy PWM Controllers | | Brand | JZK | | Connector Type | USB-C | | Customer Reviews | 4.1 out of 5 stars 2,438 Reviews | | Efficiency | High Efficiency | | Included Components | solar charge controller, English User Manual | | Included components | solar charge controller, English User Manual | | Item Dimensions L x W x H | 13.5L x 3.2H centimetres | | Item Weight | 150 Grams | | Item weight | 150 Grams | | Manufacturer | JZK | | Material | Aluminium | | Maximum Power | 520 Watts | | Maximum Voltage | 46 Volts (DC) | | Model Number | JZK | | Output Voltage | 24 Volts | | Part Number | JZK | | Product dimensions | 13.5L x 3.2H centimetres | | Special Features | Short Circuit Protection | | Upper Temperature Rating | 60 Degrees Celsius | ## Images ![JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting - Image 1](https://m.media-amazon.com/images/I/512cYlgPYTL.jpg) ![JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting - Image 2](https://m.media-amazon.com/images/I/61vYYvrAK8L.jpg) ![JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting - Image 3](https://m.media-amazon.com/images/I/616OXs-t-fL.jpg) ![JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting - Image 4](https://m.media-amazon.com/images/I/41mOHUPQyCL.jpg) ![JZK 20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting - Image 5](https://m.media-amazon.com/images/I/419gfnAU33L.jpg) ## Questions & Answers **Q: Can you use this to charge 2 different size of the same type batteries in parallel 1x80ah 1x60ah? if not can you charge 2 the same size in parallel?** A: You can do both but it's advised that you the same batteries bought at the same time. If you use what you have then your 80ah battery becomes a 60ah **Q: Does this have anti-backflow to stop the battery discharging at night? When there is not much light.** A: yes **Q: Has anyone tried wiring this direct to a load without a battery?** A: There is a correct sequence for connection of load , battery, Solar to prevent damage to the controller. Solar panels do not provide a constant voltage or current required by most electronic devices for stable operation, therefore it would be a pointless to try to operate without the battery power, **Q: Does this work with AGM battery types?** A: Yes it does. ## Customer Reviews ### ⭐⭐⭐⭐⭐ So far so good *by S***K on 23 July 2020* Had this just over a week and it seems to be working very well. Instructions fairly basic but good enough to set it up without any problems. Setting the float voltage to 13v (the lowest setting) seems to keep the battery on trickle charge at a constant 12.6v when hooked up to a 10w solar panel. Would have liked to keep it a little lower say 12.4v but not sure that is possible with this controller. That said, perfectly happy with it and full marks for something that only cost £10. Can't comment on long term durability, not had it long enough. ### ⭐⭐⭐⭐⭐ Solar charger, just works. *by A***L on 9 April 2020* This controller seems to be working perfectly. Easy to install, just make sure you connect the battery first, then the solar panels then any auxiliary device if needed. ### ⭐⭐⭐⭐ It works but could be designed a bit better. *by F***H on 3 September 2018* This is being used as part of a trickle charge set up to maintain the battery on a car that is not driven often but has power hungry electronics when the engine is off - a two channel dash cam, a tracker and, aftermarket alarm. So far it seems to be working fine. Dislikes: the enclosed instructions are poor. The basic information sheet is the type of sheet you would reference having read slightly more detailed instructions - luckily there are many online videos with the missing explanations. The voltage display is inaccurate. When it reads 11.8v my multimeter read 12.2v (this was the same with an analogue meter as well). This means having a float voltage set you could be under or possibly over the float set point. The LCD display looks a bit dim for my liking and could benefit from an optional back light or some kind of options for dim, not dim and, switch off. For the price it is not a bad product. Early days so cannot comment on longevity yet. Been less than a week connected. --- ## 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.at/products/60229575-jzk-20a-intelligent-solar-charge-controller-with-lcd-display-usb](https://www.desertcart.at/products/60229575-jzk-20a-intelligent-solar-charge-controller-with-lcd-display-usb) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-24*