--- product_id: 461285253 title: "PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging" brand: "powmr" price: "€ 55.90" currency: EUR in_stock: true reviews_count: 11 category: "Pow Mr" url: https://www.desertcart.ie/products/461285253-powmr-12v-24v-auto-20amp-solar-charge-controller-mppt-charge store_origin: IE region: Ireland --- # 20A max charging current 99.5% MPPT tracking efficiency Supports 12V & 24V battery systems PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging **Brand:** powmr **Price:** € 55.90 **Availability:** ✅ In Stock ## Summary > 🔆 Power your future smarter, not harder with Keeper1220! ## Quick Answers - **What is this?** PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging by powmr - **How much does it cost?** € 55.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/461285253-powmr-12v-24v-auto-20amp-solar-charge-controller-mppt-charge) ## Best For - powmr enthusiasts ## Why This Product - Trusted powmr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision MPPT Tech:** Harness up to 99.5% solar power efficiency to maximize your energy harvest. - • **Real-Time LCD Monitoring:** Stay informed with instant updates on charging current, battery status, and system alerts. - • **Dynamic Load Control Modes:** Choose from 24H, Light, or Light+Time control to tailor your energy usage. - • **Smart Dual Voltage Auto-Detect:** Seamlessly switches between 12V and 24V systems for ultimate flexibility. - • **Versatile Battery Compatibility:** Works flawlessly with Flooded, AGM, GEL, LifePO4, Lithium & custom batteries. ## Overview The Keeper1220 is a 20A MPPT solar charge controller designed for 12V and 24V battery systems, delivering up to 99.5% tracking efficiency. It supports a wide range of battery types including Lithium and AGM, features multiple load control modes, and provides real-time system data via an intuitive LCD display. Ideal for professionals seeking reliable, efficient solar energy management with customizable settings. ## Description About POWMR Hi everyone, we are a company specializing in global solar system integration under the brand name 'POWMR'. Our product range includes ( MPPT/PWM) controllers, hybrid inverters, inverters, solar panels, backup batteries and solar related accessories. 'POWMR' will provide excellent after-sales support, thank you! About POWMR Hi everyone, we are a company specializing in global solar system integration under the brand name 'POWMR'. Our product range includes ( MPPT/PWM) controllers, hybrid inverters, inverters, solar panels, backup batteries and solar related accessories. 'POWMR' will provide excellent after-sales support, thank you! 5.2KW to 10KW 110V/240Vac 3KW to 5KW 110V solar inverter 4.2KW to 10.2KW 220V Inverter 60A to 100Amp solar controller 20A to 80A charge controller 15A/10A charge controller Review: Works Great, but Watch the Watts Rating - I'm happy with the way this 20 amp solar charge controller works, but should have paid more attention to the power rating shown in the desertcart ad. The current and voltage rating seem to indicate it could handle all four of my 100 watt, 5 amp, Renogy solar panels. It's rated higher if charging 24 volts of battery, but my inverter is for 12 volts, so I can't just put the batteries in series. I can get by using the PWM charge controller built into my 2200 watt Giandel inverter for two of the solar panels, but wish I'd paid a little more for a more capable controller. In fact, if I ever upgrade I'll probably get the old style 60 watt PowMr controller. A YouTube video mentions that their new version has a connection for a fan on its motherboard, but no fan. The old version, with a metal housing, has a fan. Edit: Note, when comparing solar controllers, be aware that the amp rating is for amps OUT. My mistake was thinking it was amps IN from the solar panels. Even in parallel, my four 100 watt panels should produce just 20 amps INTO the charge controller, but the voltage IN is greater than the voltage OUT, so it overheated and shut down (luckily it works again, after cooling off). Note: to find the amp rating you need, for this or other charge controllers, just divide the total watts of your solar panels (400 in my case) by the nominal battery voltage (12 in my case) to get the rated amps you need (33.3 in my case). Edit 2: At a later date, the price of my 20 amp controller went up so high that the 30 amp model was significantly less, so compare prices before ordering. Wish I had that 30 amp model. Edit 3: I have now purchased two more 100 watt solar panels, plus the 60 watt controller I mention above, and couldn't be happier. Review: it works great - very difficult to set up. - it works great - very difficult to set up. not many know this but theres 2 versions of the 20amp, they look identical but the LCD display and functions are a little different, and the manuals are different too. (both manuals are almost useless) if you can make do with the very disgusting button mapping and layout, it will charge just about any chemistry. I have this set to 14.4 lifepo4 and haven't changed it since. Charges 5 different lifepo4, from different vendors, just fine. I'd spend a little more and get a BougeRV charge controller. ## Features - 【20A Solar Charge Controller】Auto detect 12V 24V system; Rated Charging Current is 20A; Max. PV Open Circuit Voltage is 60V; Advanced MPPT maximum power point tracking technology solar charge controller, tracking efficiency is no less than 99.5%. - 【Supported Voltage/Power Ranges】20A Solar Controller can accept solar voltage up to 60V. When the battery is a 12V system, the recommended maximum input power is 260W; For 24V system, the Max. is 520W. - 【Compatible Battery Types】Compatible with 12v 24V battery systems, Adaptable to User, Flooded, AGM, GEL, LifePO4, Lithium, and other customized battery types. Important: Please connect the battery first.. - 【Multiple load control modes】Solar controller 20amp with Excellent heat sink design and Multiple load control modes: 24Hours Working, Light Control, Light+Time Control. - 【LCD Display】Comes with an LCD display showing accurate and timely information including charging current, generated energy, temperature, battery voltage, and error codes that allows users to monitor and control charging. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B5WP1BY8 | | Best Sellers Rank | #96,563 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #70 in Renewable Energy Controllers | | Brand | PowMr | | Brand Name | PowMr | | Color | MPPT 20amp/12v 24v | | Customer Reviews | 3.7 out of 5 stars 50 Reviews | | Display Type | LCD | | Included Components | no | | Item Weight | 0.67 Kilograms | | Manufacturer | PowMr | | Material | Metal | | Material Type | Metal | | Model | Keeper1220 | | Operating Temperature | 55 Degrees Celsius | | Part Number | POWKeeper1220 | | Smart Home Compatibility | Not Smart Home Compatible | | Voltage | 24 Volts | ## Product Details - **Brand:** PowMr - **Color:** MPPT 20amp/12v 24v - **Item Weight:** 0.67 Kilograms - **Material:** Plastic - **Voltage:** 24 Volts ## Images ![PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging - Image 1](https://m.media-amazon.com/images/I/51koInJgUvL.jpg) ![PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging - Image 2](https://m.media-amazon.com/images/I/61jpHEah-jL.jpg) ![PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging - Image 3](https://m.media-amazon.com/images/I/61tcYlq6F7L.jpg) ![PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging - Image 4](https://m.media-amazon.com/images/I/61N8qgoTdjL.jpg) ![PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging - Image 5](https://m.media-amazon.com/images/I/71C7KX7Y6JL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Want to adjust float voltage. Manual says I select that screen and then press select for 5 secs and should start blinking. But it doesn't.** A: Here is how to adjust your Float voltage, Step 1: press setting button to Browse your controller's parameter till you see 13.7V and your battery icon. Step 2: When the LCD shows 13.7V, long press the setting button until the 13.7V Flashing. Step 3: When the 13.7V Flashing, press plus or minus to adjust your parameter. Step 4: After adjust to your own parameter, let go the button just let is flashing, after 2-5 second it will stop flashing. Step 5: Press setting button to Browse your controller's parameter again, see if the parameter successful modify. **Q: What happens if i put a 12v (18vmax) panel on a 24v battery?** A: it won't charge. This controller only charge when you solar panel voltage higher than battery. **Q: Does this controller steps up voltage if I have 3 12v solar panel wanting to charge a 48v battery?** A: NO. Solar panel voltage must higher than battery voltage, 3 12V solar panel, max only 36V, it can't charge 48V batttery. **Q: Is this Negative ground?** A: NO. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Great, but Watch the Watts Rating *by D***E on March 5, 2023* I'm happy with the way this 20 amp solar charge controller works, but should have paid more attention to the power rating shown in the Amazon ad. The current and voltage rating seem to indicate it could handle all four of my 100 watt, 5 amp, Renogy solar panels. It's rated higher if charging 24 volts of battery, but my inverter is for 12 volts, so I can't just put the batteries in series. I can get by using the PWM charge controller built into my 2200 watt Giandel inverter for two of the solar panels, but wish I'd paid a little more for a more capable controller. In fact, if I ever upgrade I'll probably get the old style 60 watt PowMr controller. A YouTube video mentions that their new version has a connection for a fan on its motherboard, but no fan. The old version, with a metal housing, has a fan. Edit: Note, when comparing solar controllers, be aware that the amp rating is for amps OUT. My mistake was thinking it was amps IN from the solar panels. Even in parallel, my four 100 watt panels should produce just 20 amps INTO the charge controller, but the voltage IN is greater than the voltage OUT, so it overheated and shut down (luckily it works again, after cooling off). Note: to find the amp rating you need, for this or other charge controllers, just divide the total watts of your solar panels (400 in my case) by the nominal battery voltage (12 in my case) to get the rated amps you need (33.3 in my case). Edit 2: At a later date, the price of my 20 amp controller went up so high that the 30 amp model was significantly less, so compare prices before ordering. Wish I had that 30 amp model. Edit 3: I have now purchased two more 100 watt solar panels, plus the 60 watt controller I mention above, and couldn't be happier. ### ⭐⭐⭐⭐⭐ it works great - very difficult to set up. *by W***O on August 22, 2023* it works great - very difficult to set up. not many know this but theres 2 versions of the 20amp, they look identical but the LCD display and functions are a little different, and the manuals are different too. (both manuals are almost useless) if you can make do with the very disgusting button mapping and layout, it will charge just about any chemistry. I have this set to 14.4 lifepo4 and haven't changed it since. Charges 5 different lifepo4, from different vendors, just fine. I'd spend a little more and get a BougeRV charge controller. ### ⭐ This junk almost burnt down my garage. *by C***S on September 18, 2022* Didn’t get it hooked up until after return window. Got it set up. Worked great during the day but somehow overnight it caught fire. Thank god it was on a cement floor and not my wooden workbench. ## Frequently Bought Together - PowMr 12V 24V AUTO 20Amp Solar Charge Controller, MPPT Charge Controller Intelligent Regulator w/LCD Display for AGM, Gel, Flooded and Lithium Battery Charging - JJN 100 Watt Solar Panels 9BB 12 Volt Monocrystalline Solar Panel High Efficiency Solar Module PV Charge for RV Battery Boat Caravan and Other Off Grid System --- ## 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.ie/products/461285253-powmr-12v-24v-auto-20amp-solar-charge-controller-mppt-charge](https://www.desertcart.ie/products/461285253-powmr-12v-24v-auto-20amp-solar-charge-controller-mppt-charge) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-06-05*