Locally owned and operated in Colorado since 2002--Everything You Need to Go Solar!
{"id":1868405145689,"title":"Eco Energy Charge Controller 50W 12V - ASC-50W-12V","handle":"eco-energy-asc50-advanced-solar-charger-50w-12v","description":"\u003cdiv class=\"ui-tabs-panel ui-corner-bottom ui-widget-content\" role=\"tabpanel\" aria-hidden=\"false\" aria-labelledby=\"ui-id-1\"\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThe Eco Energy Advanced Solar Charger is a simple, easy-to-install PWM charge controller for small 12V off-grid PV systems. What makes this controller unique is its zero standby power consumption – it shuts off completely at night to prevent battery drain, eliminating the need for a blocking diode. It produces no radio interference, operates silently, and is fully encapsulated in epoxy potting for extreme durability. Rated for 12V systems with a maximum charging current of 4 amps and a maximum PV open circuit voltage of 30 volts, it is ideal for maintaining batteries in RVs, boats, cabins, gates, and other remote applications. Designed and built in North America.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eKey Features \u0026amp; Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eZero Standby Power Consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eShuts off completely at night to prevent battery drain, preserving stored energy without requiring a blocking diode – a unique feature among small charge controllers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNo Radio Interference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eProduces no electromagnetic interference, making it suitable for use near sensitive electronics, communication equipment, and residential areas.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eFully Encapsulated in Epoxy Potting:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eSealed against moisture, vibration, and corrosion for reliable operation in harsh outdoor environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eExtreme Temperature Range:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eOperates reliably from -40°C to +70°C (-40°F to +160°F), suitable for year-round use in any climate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eComprehensive Protections:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eGuards against PV and battery short-circuit, reverse polarity, overload, over-temperature, and battery removal for long-term system reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSeries Design (Not Shunt):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eUses a series switching design rather than a shunt design, providing more efficient and reliable charge control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCan Charge a Completely Discharged Battery:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eCapable of charging a battery that has been fully discharged, recovering batteries that other controllers might reject.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTemperature Compensation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eIncludes automatic temperature compensation (0.028V\/°C or 0.016V\/°F) to adjust charge voltages based on battery temperature, extending battery life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e100% Solid State:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eNo moving parts or mechanical relays to wear out, ensuring silent, maintenance-free operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNo Derating Required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eCan be used at full rated current without needing to reduce capacity in high temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eManufactured with Solar Power:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eProduced using renewable energy, reflecting a commitment to sustainability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e5-Year Warranty:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eBacked by a 5-year warranty for peace of mind.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDesigned and Built in North America:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eManufactured to high quality standards with local support.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eDetail\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eEco Energy\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eASC-50W-12V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eNominal Battery Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e12 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eMax Charging Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e4 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eMax PV Open Circuit Voltage (VOC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e30 Volts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eStandby Power Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eZero (shuts off at night)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eDesign Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eSeries (not shunt), 100% solid state\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eTemperature Compensation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e0.028V\/°C or 0.016V\/°F\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eOperating Temperature Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e-40°C to +70°C (-40°F to +160°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eProtections\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003ePV \u0026amp; battery short-circuit, reverse polarity, overload, over-temperature, battery removal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eSpecial Features\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eNo blocking diode required, no radio interference, silent operation, no derating needed, charges fully discharged batteries\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eFully encapsulated in epoxy potting\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eWarranty\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e5 years\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eMechanical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eDetail\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e1.0 lb (454 g) approx.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eCustom Options (Contact for Quote)\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eOption\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eDescription\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eCustom Voltage Setpoints\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eAdjust charge voltages for specific battery types\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eOptional Dual Battery Charging\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eCharge two battery banks from one solar array\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eCustom Wire Lead Lengths\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eSpecify length of pre-attached wires\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eProduct Documents\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSpecs and Installation Manual: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0079\/6003\/5417\/files\/ASC50W_Installation_Manual.pdf\"\u003eDownload PDF\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","published_at":"2018-11-22T11:22:11-07:00","created_at":"2018-11-22T11:22:11-07:00","vendor":"Eco Energy","type":"Charge Controller Small","tags":["All products","Brand_Eco Energy","Eco Energy","feed-sl-9","Max PV VOC_0-99 volts","Nominal Battery Voltage_12 volts","Small Charge Controllers","Type_PWM"],"price":4000,"price_min":4000,"price_max":4000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":18342580584537,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"ASC-50W-12V","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"Eco Energy Charge Controller 50W 12V - ASC-50W-12V","public_title":null,"options":["Default Title"],"price":4000,"weight":454,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.solarpanelstore.com\/cdn\/shop\/products\/asc_50_121_221dc996-d2ab-4952-890f-f6cb7aef7a00.jpg?v=1628027211"],"featured_image":"\/\/www.solarpanelstore.com\/cdn\/shop\/products\/asc_50_121_221dc996-d2ab-4952-890f-f6cb7aef7a00.jpg?v=1628027211","options":["Title"],"media":[{"alt":"Eco Energy Charge Controller PWM 50W 12V - ASC-50W-12V","id":514783445132,"position":1,"preview_image":{"aspect_ratio":1.0,"height":256,"width":256,"src":"\/\/www.solarpanelstore.com\/cdn\/shop\/products\/asc_50_121_221dc996-d2ab-4952-890f-f6cb7aef7a00.jpg?v=1628027211"},"aspect_ratio":1.0,"height":256,"media_type":"image","src":"\/\/www.solarpanelstore.com\/cdn\/shop\/products\/asc_50_121_221dc996-d2ab-4952-890f-f6cb7aef7a00.jpg?v=1628027211","width":256}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cdiv class=\"ui-tabs-panel ui-corner-bottom ui-widget-content\" role=\"tabpanel\" aria-hidden=\"false\" aria-labelledby=\"ui-id-1\"\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThe Eco Energy Advanced Solar Charger is a simple, easy-to-install PWM charge controller for small 12V off-grid PV systems. What makes this controller unique is its zero standby power consumption – it shuts off completely at night to prevent battery drain, eliminating the need for a blocking diode. It produces no radio interference, operates silently, and is fully encapsulated in epoxy potting for extreme durability. Rated for 12V systems with a maximum charging current of 4 amps and a maximum PV open circuit voltage of 30 volts, it is ideal for maintaining batteries in RVs, boats, cabins, gates, and other remote applications. Designed and built in North America.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eKey Features \u0026amp; Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eZero Standby Power Consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eShuts off completely at night to prevent battery drain, preserving stored energy without requiring a blocking diode – a unique feature among small charge controllers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNo Radio Interference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eProduces no electromagnetic interference, making it suitable for use near sensitive electronics, communication equipment, and residential areas.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eFully Encapsulated in Epoxy Potting:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eSealed against moisture, vibration, and corrosion for reliable operation in harsh outdoor environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eExtreme Temperature Range:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eOperates reliably from -40°C to +70°C (-40°F to +160°F), suitable for year-round use in any climate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eComprehensive Protections:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eGuards against PV and battery short-circuit, reverse polarity, overload, over-temperature, and battery removal for long-term system reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSeries Design (Not Shunt):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eUses a series switching design rather than a shunt design, providing more efficient and reliable charge control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCan Charge a Completely Discharged Battery:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eCapable of charging a battery that has been fully discharged, recovering batteries that other controllers might reject.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTemperature Compensation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eIncludes automatic temperature compensation (0.028V\/°C or 0.016V\/°F) to adjust charge voltages based on battery temperature, extending battery life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e100% Solid State:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eNo moving parts or mechanical relays to wear out, ensuring silent, maintenance-free operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNo Derating Required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eCan be used at full rated current without needing to reduce capacity in high temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eManufactured with Solar Power:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eProduced using renewable energy, reflecting a commitment to sustainability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e5-Year Warranty:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eBacked by a 5-year warranty for peace of mind.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDesigned and Built in North America:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eManufactured to high quality standards with local support.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eDetail\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eEco Energy\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eASC-50W-12V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eNominal Battery Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e12 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eMax Charging Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e4 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eMax PV Open Circuit Voltage (VOC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e30 Volts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eStandby Power Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eZero (shuts off at night)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eDesign Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eSeries (not shunt), 100% solid state\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eTemperature Compensation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e0.028V\/°C or 0.016V\/°F\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eOperating Temperature Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e-40°C to +70°C (-40°F to +160°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eProtections\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003ePV \u0026amp; battery short-circuit, reverse polarity, overload, over-temperature, battery removal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eSpecial Features\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eNo blocking diode required, no radio interference, silent operation, no derating needed, charges fully discharged batteries\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eConstruction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eFully encapsulated in epoxy potting\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eWarranty\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e5 years\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eMechanical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eDetail\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003e1.0 lb (454 g) approx.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eCustom Options (Contact for Quote)\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eOption\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"\"\u003eDescription\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eCustom Voltage Setpoints\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eAdjust charge voltages for specific battery types\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eOptional Dual Battery Charging\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eCharge two battery banks from one solar array\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eCustom Wire Lead Lengths\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"\"\u003eSpecify length of pre-attached wires\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003eProduct Documents\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSpecs and Installation Manual: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0079\/6003\/5417\/files\/ASC50W_Installation_Manual.pdf\"\u003eDownload PDF\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e"}

Eco Energy Charge Controller 50W 12V - ASC-50W-12V

Product Description
$40.00
Maximum quantity available reached.

The Eco Energy Advanced Solar Charger is a simple, easy-to-install PWM charge controller for small 12V off-grid PV systems. What makes this controller unique is its zero standby power consumption – it shuts off completely at night to prevent battery drain, eliminating the need for a blocking diode. It produces no radio interference, operates silently, and is fully encapsulated in epoxy potting for extreme durability. Rated for 12V systems with a maximum charging current of 4 amps and a maximum PV open circuit voltage of 30 volts, it is ideal for maintaining batteries in RVs, boats, cabins, gates, and other remote applications. Designed and built in North America.


Key Features & Benefits

Zero Standby Power Consumption: Shuts off completely at night to prevent battery drain, preserving stored energy without requiring a blocking diode – a unique feature among small charge controllers.

No Radio Interference: Produces no electromagnetic interference, making it suitable for use near sensitive electronics, communication equipment, and residential areas.

Fully Encapsulated in Epoxy Potting: Sealed against moisture, vibration, and corrosion for reliable operation in harsh outdoor environments.

Extreme Temperature Range: Operates reliably from -40°C to +70°C (-40°F to +160°F), suitable for year-round use in any climate.

Comprehensive Protections: Guards against PV and battery short-circuit, reverse polarity, overload, over-temperature, and battery removal for long-term system reliability.

Series Design (Not Shunt): Uses a series switching design rather than a shunt design, providing more efficient and reliable charge control.

Can Charge a Completely Discharged Battery: Capable of charging a battery that has been fully discharged, recovering batteries that other controllers might reject.

Temperature Compensation: Includes automatic temperature compensation (0.028V/°C or 0.016V/°F) to adjust charge voltages based on battery temperature, extending battery life.

100% Solid State: No moving parts or mechanical relays to wear out, ensuring silent, maintenance-free operation.

No Derating Required: Can be used at full rated current without needing to reduce capacity in high temperatures.

Manufactured with Solar Power: Produced using renewable energy, reflecting a commitment to sustainability.

5-Year Warranty: Backed by a 5-year warranty for peace of mind.

Designed and Built in North America: Manufactured to high quality standards with local support.


Technical Specifications

Specification Detail
Manufacturer Eco Energy
Model ASC-50W-12V
Nominal Battery Voltage 12 VDC
Max Charging Current 4 Amps
Max PV Open Circuit Voltage (VOC) 30 Volts
Standby Power Consumption Zero (shuts off at night)
Design Type Series (not shunt), 100% solid state
Temperature Compensation 0.028V/°C or 0.016V/°F
Operating Temperature Range -40°C to +70°C (-40°F to +160°F)
Protections PV & battery short-circuit, reverse polarity, overload, over-temperature, battery removal
Special Features No blocking diode required, no radio interference, silent operation, no derating needed, charges fully discharged batteries
Construction Fully encapsulated in epoxy potting
Warranty 5 years

Mechanical Specifications

Specification Detail
Weight 1.0 lb (454 g) approx.

Custom Options (Contact for Quote)

Option Description
Custom Voltage Setpoints Adjust charge voltages for specific battery types
Optional Dual Battery Charging Charge two battery banks from one solar array
Custom Wire Lead Lengths Specify length of pre-attached wires

Product Documents

Specs and Installation Manual: Download PDF