--- product_id: 1755310 title: "Battery Tender 5-45 Watt Automatic Solar Panel Controller - 021-1162" brand: "battery tender" price: "RM202" currency: MYR in_stock: true reviews_count: 5 url: https://www.desertcart.com.my/products/1755310-battery-tender-5-45-watt-automatic-solar-panel-controller-021 store_origin: MY region: Malaysia --- # 3 ADC max output 3-stage smart charging 32 VDC max input voltage Battery Tender 5-45 Watt Automatic Solar Panel Controller - 021-1162 **Brand:** battery tender **Price:** RM202 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power up smartly β€” never miss a charge, never miss out! ## Quick Answers - **What is this?** Battery Tender 5-45 Watt Automatic Solar Panel Controller - 021-1162 by battery tender - **How much does it cost?** RM202 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/1755310-battery-tender-5-45-watt-automatic-solar-panel-controller-021) ## Best For - battery tender enthusiasts ## Why This Product - Trusted battery tender brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Real-Time LED Status:** Instantly monitor battery voltage and system health with intuitive LED indicators. - β€’ **Compact & Lightweight:** Sleek 5x5x1 inch design weighing just 0.01 ounces fits seamlessly into any solar setup. - β€’ **Smart 3-Stage Charging:** Automatically optimizes battery health by adjusting charge based on voltage and connection status. - β€’ **12V Battery Compatibility:** Perfectly engineered for 12-volt battery systems, ensuring reliable and efficient power management. - β€’ **Robust Safety Protections:** Built-in safeguards against reverse polarity, overvoltage, short circuits, and overheating for worry-free operation. ## Overview The Battery Tender 5-45 Watt Automatic Solar Panel Controller delivers intelligent 3-stage charging with a max output of 3 ADC and input voltage up to 32 VDC. Featuring LED indicators for real-time monitoring and comprehensive safety protections, this compact controller is designed for seamless integration with 12V battery systems, ensuring efficient and reliable solar power management. ## Description Battery Tender Charge controller for any solar panel. Panel is not provided. ## Features - Capacity: Max output of 3 ADC and max input voltage of 32 VDC - 3-Stage Function: Built with 3-stage charging; determines battery connection, voltage and charge level to automatically turn the output load on or off based on the selected battery voltage - Easy to Use: Features a LED battery voltage and status indicator to easily track battery and solar panel status; capable of indicating error status - Safety Features: Features protection against reverse connection, overvoltage, short circuit, and over temperature; compatible with 12 volt batteries ## Technical Specifications | Specification | Value | |---------------|-------| | Item Weight | 0.01 Ounces | | Display Type | LED | | UPC | 000038070099 734357116205 | | Global Trade Identification Number | 00734357116205 | | Manufacturer | Battery Tender | | Model | Battery Tender 0211162 | | Item Weight | 0.01 ounces | | Product Dimensions | 5 x 5 x 1 inches | | Item model number | 0211162 | | Is Discontinued By Manufacturer | No | | Exterior | Painted | | Manufacturer Part Number | 0211162 | | OEM Part Number | 021-1162 | | Wattage | 45 watts | ## Product Details - **Color:** black - **Brand:** Battery Tender - **Voltage:** 12 Volts - **Product Dimensions:** 3.8"L x 0.75"W x 2.45"H - **Material:** Carbon Steel ## Images ![Battery Tender 5-45 Watt Automatic Solar Panel Controller - 021-1162 - Image 1](https://m.media-amazon.com/images/I/51WsfIxdsgL.jpg) ## Questions & Answers **Q: Does this controller prevent current from flowing to the solar panel at night?** A: Thank you for contacting us.The Battery Tender 021-1162 Solar Controller keeps the battery from over charging, and prevent the solar panel from drawing on the battery at night.Thank you! **Q: Is this unit waterproof? I'd like to hook up a panel & controller to my tractor batteries.** A: Hello Hawkeye829. The Battery Tender 021-1162 Solar Panel Charger Controller is water resistant but not waterproof. It can be used in a wet environment but can not be submerged in water. Feel free to contact me with further questions. Thanks. **Q: What gauge wire should be used when spicing this into an existing system?** A: According to the manual, this charge controller charges at up to 3 Amps maximum. The manual recommends 16 AWG wire for runs less than 25 feet. **Q: Can the battery be used without disconnecting the charger? My application requires unattended charging and power use.** A: I use the battery without disconnecting the charger and don't have any problems. I do the same with my plugin wall chargers from deltran without problems. You can also download the user manuals if you want to research further. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great for small solar projects (12 volt Lighting) *by O***G on January 31, 2012* I've used it for 7 months now to charge alternately a 32AHr, 26AHR and 8Ahr deep cycle AGM batteries and it has done a great job. I have a 30 watt monocrystalline solar panel wired directly to it and connect it directly to my batteries using various quick disconnect connectors. I monitor the state of discharge (with a multimeter)and never let my batteries fall below 75% of rated capacity (as recommended by battery manufacturers for best practice and long life of battery.) The Battery Tender as described is a 3 stage charge controller and will put the most voltage out when the battery needs it and cuts back as it approaches full charge down to a trickle level. All the batteries quickly recharge even on partial sun days. Takes 3-6 hours of sun on the biggest battery less on the others. Keeping them topped off is easier (better for it), faster to recharge, and simple to rotate each bettery for its day or shared day of charging.I've monitored its output to the various batteries and it does its job as described at manufacturers website.Charge light lets you know when it is working and indicates what stage its at by color or flashing. Again just as described.I use 12 volt DC LED lights and and connected to my inverter some AC CFL lights and charge all my phones and run my laptop a few hours EVERYDAY! If you have the right expectation of what wattage you planned to use and think about the set-up you can make a nice daily use (or emergency use) system with these components.I am very pleased with the product to used for a small solar systems using a 45 watt panel or less. I plan to buy a few more and connect up lights, radios, in other rooms all over the house. My way of going green.I also charge my AA, AAA rechargeable batteries with a DC connectable battery charger off my 32AHr battery too!Saves me a lot of money on batteries and I use more battery operated devices now and the family enjoys the whole system. Use the Battery Tender only to charge batteries and do not try to run other things from it. That is not what is was designed for.********1 YEAR LATER: Now Feb 2013 AND THIS PRODUCT IS STILL SERVING ME WELL AND AS DESCRIBED. GREAT FOR SMALL TARGET INSTALATIONS! ### ⭐⭐⭐⭐⭐ Excellent Performer & Customer Service! *by R***C on March 7, 2017* I just installed this a couple of days ago and it is working perfectly, connected to my Renogy 30W solar panel. I spoke with Deltran's excellent customer service department and found out the following:- the solar controller has a blocking diode, to prevent current reversal back from the battery to the panel at night, or when the panel is not putting out enough voltage due to cloud cover, etc.- the output side of the solar controller can be disconnected going to the battery without having to disconnect the input side coming from the solar panel. The voltage coming into the solar controller from the solar panel will not damage the controller. Be sure to use a solar panel rated between 5W - 45W, as the specs of the solar controller mention, which is also printed on the solar controller itself.- the (4) size #6 screw terminals can not be removed.I wanted to use ring terminal connectors instead of spade terminal connectors due to the spade connectors having a tendency to spread. Prior to calling Deltran, I attempted to remove the screws which met resistance after unscrewing almost all the way, so I stopped and spoke with Deltran. I'll try to use heavier spade terminals, if the need arises. As of now, the slight spreading is not an issue due to everything being stationary.Two suggestions:1) It would be nice if Deltran made the screws removable. I assume they made them non removable so they cannot be lost, or perhaps the purpose is to make the unit more moisture resistant, where the screws enter the controller. I'm not certain though.2) Why didn't Deltran make their Battery Tender solar controller Water Resistant or Waterproof??After all, this solar controller is meant to be used with a solar panel which obviously will be used outdoors in the environment, where it rains or snows. It's hard to believe this was an oversight. This issue had to be discussed in one of those Research & Development meetings. Perhaps they'll come up with a Waterproof version in the future.I've given this solar controller 5 Stars as it is performing well. I'll be sure to post any updates.I have the 1.25A Battery Tender Plus and the 800mAh Battery Tender Waterproof charger which have performed flawlessly for years, and I expect the Battery Tender solar controller will also perform flawlessly. ### ⭐⭐⭐⭐⭐ Simple and effective way to charge battery with solar panel *by T***U on March 5, 2024* Yet another Deltran charger/ maintainer that works great and as described. Using with a 25w solar panel powering a 24f size 585cca , 2 year old Clarios/ Walmart mediocre battery. Simple setup!Purpose is to run ParMak Magnum 12v fence charger 7x24. From testing, fencer runs overnight just fine on battery and recharges as expected during daylight hours. Does not take very long to go from charge to float ( see BM300 pic).Previously used a cheap PowMr β€œsolar controller” that never would regulate voltage properly, regardless of settings.This makes my 6th Deltran battery tender product since 2011 and yet to have any fail. ## Frequently Bought Together - Battery Tender 5-45 Watt Automatic Solar Panel Controller - 021-1162 - Battery Tender Ring Terminal Harness Accessory Cable - 18 inch Cord Adapter with SAE Quick Disconnect - Easy Quick Convenient for Motorcycles, Cars, ATVs and More - 081-0069-6 - Battery Tender 5 Watt Solar Panel 12V Battery Charger with Charge Controller - IP67 Weatherproof - Windshield Mountable for Motorcycles, Cars, SUVs and Campers - 021-1171 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.my/products/1755310-battery-tender-5-45-watt-automatic-solar-panel-controller-021](https://www.desertcart.com.my/products/1755310-battery-tender-5-45-watt-automatic-solar-panel-controller-021) --- *Product available on Desertcart Malaysia* *Store origin: MY* *Last updated: 2026-06-01*