{"product_id":"optimate-solar-duo-20w-tm522-d2-high-efficiency-12v-battery-solar-charger","title":"OptiMate Solar DUO TM522-D2: OFF-GRID series 20W Solar 12V lead-acid and lithium Battery Charger \u0026 Maintainer","description":"\u003cp\u003eThe OptiMate Solar DUO 20W (model no: TM522-D2) combines a weatherproof poly-crystalline 20W solar panel with the TM522-D charge controller to create a hi-efficiency smart pulse charger \u0026amp; maintainer for more effective care of your 12V lead-acid or LiFePO₄ (LFP) car, bakkie, farm equipment or medium sized deep cycle batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow it works :\u003c\/strong\u003e The poly-crystalline solar cells work effectively with direct and angled sun, or with sunlight filtering through cloud, allowing charging in any weather. The OptiMate Solar DUO charge controller converts low current from the panel into effective charge pulses that work better at charging any type of battery.\u003c\/p\u003e\n\u003cp\u003eWith the OptiMate Solar DUO smart controller between the 20W panel and battery, the panel's output efficiency is raised to 50-100% (depending on strength of sun) generating a faster charge, with the controller regulating battery charge voltage to exactly what a 12V battery needs.\u003c\/p\u003e\n\u003cp\u003eWith OptiMate Solar Duo charge controller you can now leave your solar charge panel permanently connected to your battery - \u003cem\u003enot only does\u003c\/em\u003e \u003cem\u003eit charges the battery better and faster, there is\u003c\/em\u003e \u003cem\u003eno possibility of overcharging!\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAnd that's not all, at night the controller turns into a battery monitor, indicating the status of your battery. Come morning, even in cloudy weather, it turns back into a charger and continues caring for your battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e20 WATT CHARGING POWER\u003c\/strong\u003e - Ideal for small to medium 12V batteries capable of accepting up to 1.67A (average) charge current, as found in a motorcycle, car, bakkie, farm equipment, or with deep cycle batteries used in security or gate opener applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePANEL WORKS IN ANY WEATHER - \u003c\/strong\u003epoly-crystalline technology designed to work effectively with variable sun power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePULSE CONVERSION TECHNOLOGY - \u003c\/strong\u003eAccumulates low current from the panel and converts it into efficient charging pulses ranging from 2A to 5A, never-mind the weather. \u003cem\u003eHigh sun - more frequent pulses; cloudy skies - less frequent pulses. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCHARGER BY DAY, MONITOR BY NIGHT\u003c\/strong\u003e\u003cem\u003e - \u003c\/em\u003eCharge controller witches between charge and monitor mode depending on incoming power. You always know the condition of your battery.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOLAR PANEL RATING : 20 Watt poly-crystalline, with Vmp = 17V \u003c\/strong\u003e(Voltage at maximum power) \u003cstrong\u003e and Voc ≤ 22V \u003c\/strong\u003e(Voltage open circuit - \u003cem\u003enothing connected to panel\u003c\/em\u003e)\u003cstrong\u003e. \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCHARGE CONTROLLER OUTPUT VOLTAGE RANGE :\u003c\/strong\u003e 4V to 14.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePROGRAM STEPS : SAVE \u003c\/strong\u003efrom 4V to 12V\u003cstrong\u003e, CHARGE \u003c\/strong\u003eup to 14.4V\u003cstrong\u003e, MAINTAIN \u003c\/strong\u003ebetween 13V and 13.6V, \u003cstrong\u003eMONITOR\u003c\/strong\u003e (when there is no incoming power).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMONITOR : \u003c\/strong\u003e4 LEDs indicate battery state of charge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal 12V lead-acid battery Compatibility\u003c\/strong\u003e – Works with STD \/ flooded \/ wet-cell with removable filler caps (for adding distilled water) and sealed\/maintenance AGM (Absorbent Glass Mat) or GEL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLithium LFP\/LiFePO4 12.8V\/13.2V** Battery Compatibility\u003c\/strong\u003e – Automatically adapts DUO charging algorithm if Lithium LFP battery is sensed, including Lithium friendly 24-7 maintenance. Lithium batteries don't need continuous maintenance charging, OptiMate SOLAR DUO monitors the battery hourly and if it needs charge (below 70%) it brings it back up to 90% for extended life. (Lithium battery capacity and life reduces if kept at 100% when not used). \u003cstrong\u003e\u003cem\u003e** nominal voltage is 12.8V (4 x 3.2V), but some battery brands claim 13.2V (4 x 3.3V). \u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe for Sensitive Electronics\u003c\/strong\u003e – No overcharging, spark-suppressed and short-circuit protected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug \u0026amp; Play\u003c\/strong\u003e – Includes a set of battery clamps for quick connect and a fused battery lead with M6 ringlets that can be permanently fitted to the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect \u0026amp; Forget\u003c\/strong\u003e - Fully automatic charging and maintenance.\u003c\/li\u003e\n\u003cli\u003e(Instruction manual pdf)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat’s in the Box\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptiMate 20W Solar panel with 4 x integrated corner mounts and charge cable.\u003c\/li\u003e\n\u003cli\u003eOptiMate Solar TM522-D Smart charge Controller, SAE input and 180cm output cable with SAE connector.\u003c\/li\u003e\n\u003cli\u003eO-04 crocodile clips\u003c\/li\u003e\n\u003cli\u003eO-01 fused battery lead\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003cli\u003e3-year limited replacement warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tecmate South Africa","offers":[{"title":"Default Title","offer_id":48143031107813,"sku":"TM522-D2","price":1589.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/4569\/5717\/files\/Shopifycatalogueseries-3h2w-TM522-D2.jpg?v=1780007002","url":"https:\/\/tecmate.co.za\/products\/optimate-solar-duo-20w-tm522-d2-high-efficiency-12v-battery-solar-charger","provider":"Tecmate South Africa","version":"1.0","type":"link"}