{"product_id":"optimate-solar-controller-tm522-d-smart-12v-battery-charger-maintainer-5a","title":"OptiMate Solar DUO TM522-D Pulse Charge Controller : OFF-GRID series 12V lead-acid \u0026 lithium Solar Battery Charger \u0026 Maintainer (10W-60W)","description":"\u003cp\u003eThe OptiMate Solar DUO (model : TM522-D) charge controller converts your basic 12V solar panel into a hi-efficiency smart pulse charger \u0026amp; maintainer for more effective care of your 12V lead-acid or LiFePO₄ (LFP) batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow it works :\u003c\/strong\u003e Without a charge controller and panel directly connected to the battery, your discharged 12V battery pulls the solar panel's voltage well below its effective power delivery range, reducing charge current to less than 25% of the panel's ability. As voltage rises the trickle current slowly increases, but never more than 30-40% of the panel's capability. When the battery reaches full charge, the panel's voltage could now rise above (+15V) what the battery can accept, leading to overcharge.\u003c\/p\u003e\n\u003cp\u003eWith the OptiMate Solar DUO smart controller between your panel and battery, it allows the panel to raise its voltage into its effective power range increasing output efficiency to 50-100% (depending on strength of sun) for a faster charge, but at the same time the controller regulates battery charge voltage lower, 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\u003eWORKS ON PANELS RATED FOR 12V BATTERY CHARGING\u003c\/strong\u003e - A panel rated for 12V should supply voltage up to 22V, with its wattage rating calculated at 16-17V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWIDE POWER RANGE - \u003c\/strong\u003eworks best with panels rated between 10W and 60W.\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\u003eswitches 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 INPUT : 10 Watt to 60 Watt, with Vmp = 16V-18V \u003c\/strong\u003e(Voltage at maximum power) \u003cstrong\u003e and Voc ≤ 25V \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\u003eVOLTAGE OUTPUT 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 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\u003eO-27 polarity converter for other brand panels\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":48132692115685,"sku":"TM522-D","price":659.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/4569\/5717\/files\/Shopifycatalogueseries-3h2w-TM522-D.jpg?v=1780006065","url":"https:\/\/tecmate.co.za\/products\/optimate-solar-controller-tm522-d-smart-12v-battery-charger-maintainer-5a","provider":"Tecmate South Africa","version":"1.0","type":"link"}