--- product_id: 121060199 title: "Keng Solar Controller, 30A/40A/50A/60A/100A MPPT With Auto Focus Current High Efficiency Charge And Discharge Current Display Function" brand: "keng" price: "€ 35.33" currency: EUR in_stock: true category: "Kitchen" url: https://www.desertcart.pt/products/121060199-keng-solar-controller-30a-40a-50a-60a-100a-mppt-auto store_origin: PT region: Portugal --- # Keng Solar Controller, 30A/40A/50A/60A/100A MPPT With Auto Focus Current High Efficiency Charge And Discharge Current Display Function **Brand:** keng **Price:** € 35.33 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Keng Solar Controller, 30A/40A/50A/60A/100A MPPT With Auto Focus Current High Efficiency Charge And Discharge Current Display Function by keng - **How much does it cost?** € 35.33 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/121060199-keng-solar-controller-30a-40a-50a-60a-100a-mppt-auto) ## Best For - keng enthusiasts ## Why This Product - Trusted keng brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Colour:E：100a Size: about 168*94*35mm/6.61*3.70*1.38inModel: YCX003B(30A) / YCX003C(40A) / YCX003D(50A) / YCX003E(60A) | YCX003F(100A)System voltage: 12 / 24V adaptiveRated charging current: 30a | 40a | 50a| 60a | 100aRated discharge current: 10a | 20a | 20a | 30a | 30aSolar photovoltaic voltage :12V battery with 18V solar panel, 24V battery with 36 solar panelFull Voltage Value : Lithium Battery (12.2V) | B02 Colloidal Battery (14.2V) | B03 Open Cell (14.6V)Floating Charge Voltage : 13.7 V ( Default, Adjustable )Discharge cut-off voltage::10.7 V ( default, adjustable )Discharge recovery voltage: 12.6 V ( default, adjustable )Connect the positive and negative poles of the battery to the controller as shown, and the controller will automatically detect the battery voltage.Connect the positive and negative poles of the load to the controller as shown in the figure, and be careful not to connect them back.Connect the solar panel to the controller as shownPress the menu key in the main interface, select the interface to adjust the corresponding parameters and set the working state of the equipment.Working mode of load, COT manual mode load output, AUTO automatic light control mode. 00: 58 Set the output time after no sunlight.Set the real-time working status: D 13.1 V the battery voltage value display, D 29.1 ℃ temperature display, D2.1A solar charging current display, large current charging arrow flows fast, and vice versa. The d0.0a output load current dispaly, the large current discharge arrow flows fast and vice versa.Note:Make sure the battery has enough voltage so that the controller can identify the battery before the first installation.The solar controller is only suitable for lead-acid batteries, such as open type, AGM, gel, etc.Not suitable for Ni - MH batteries, Li - ion batteries or other batteries.Packing List:1 *Solar charging controller1 *Manual1 *Packing box ## Features - ✔ Large LCD display with adjustable charging and discharging parameters. The ultra-wide charging and discharging parameters can be adjusted, so long as the characteristics of the battery and its corresponding charging parameters are known， it can be used to charge any battery, and the output is turned off. Minutes and hours can be adjusted, so it is more convenient. - ✔ MPPT auto-focusing technology tracks charging, with high charging efficiency, detection during charging, and two-way focusing tracking, Humanized design: 3A ( 5521 ) DC charging interface is provided at the lower left side of the front of the controller, and 3A ( 5521 ) DC output interface is provided at the lower right side of the front of the controller to allow direct connection to the bulb. - ✔ Industrial-grade main control chip, 16-level AD sampling accuracy. Temperature, charging current and discharging current are accurately displayed in real time, and the power generation is clear at a glance, Double MOS tube anti-reflux circuit, high-power charging mode, ultra-low calorific value. - ✔ Built - in overheat, overcurrent, short circuit and reverse connection protection. When the fault is eliminated, the controller itself automatically resumes operation without damaging the controller，Complete 3 - stage charge management to effectively protect the battery and make the battery more durable. - ✔ Uses: Suitable for solar green light, solar light box advertising board, solar insecticide lamp, residential solar power generation system, marine solar power generation system, outdoor survival solar power generation system, etc. ## Images ![Keng Solar Controller, 30A/40A/50A/60A/100A MPPT With Auto Focus Current High Efficiency Charge And Discharge Current Display Function - Image 1](https://m.media-amazon.com/images/I/61KDDuTC7YL.jpg) --- ## 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.pt/products/121060199-keng-solar-controller-30a-40a-50a-60a-100a-mppt-auto](https://www.desertcart.pt/products/121060199-keng-solar-controller-30a-40a-50a-60a-100a-mppt-auto) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*