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OptiMATE TM-522-D2 Solar Duo + 20W Solar Panel - 6-Step 12V / 12.8V 1.67A Sealed Solar Battery Saving Charger & Maintainer

SKU TM-522-D2
by TecMate
Original price $180.86 - Original price $180.86
Original price
$180.86 - $180.86
Current price $180.86
in stock

The OptiMATE TM-522-D2 Solar Duo + 20W Solar Panel kit is an intelligent solar-powered charger and maintainer that is compatible with all 12V batteries, making it an excellent choice for both 12V lead-acid and 12.8V lithium batteries. It functions as a charger during the day and a monitor at night.

The intelligent charge controller automatically adjusts the charge based on the type and condition of the battery, ensuring a longer battery life and more power. The controller's fully automated multi-step program safely charges the battery to full capacity. Simply connect the OptiMATE Solar DUO 20W to the battery, and it will take care of the rest without the need for supervision.

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        Outer Dimension (including corner mount brackets)Width= 36.2 cm / 14.3”  Height= 45.5 cm / 17.9”  Depth= 2.6 cm / 1 
        Power20 Watts (max.), 12V / 12.8V, outdoor use.
        StyleWeatherproof – polycrystalline, aluminium frame with 4 x mounting brackets, output cable 200cm / 80″ with SAE connector.
        Charging Amps1.67A from 20W panel (max. average current), 3-5A pulse current
        UseIndoor / Outdoor  (lowest temperature: -4°F / -20°C).
        SaveLow Volt Start of 4V
        Ideal ForSTD, AGM & GEL 12V batteries from 2 – 240Ah and Lithium LFP 12.8V / 13.2V batteries
        Input15 – 22V
        IncludedWeatherproof battery lead, standard battery clip set & 20W solar panel
        SafeNo risk of overcharging. Totally safe for vehicle electronics. Sparks suppressed. Safe for long-term battery maintenance. Automatic shut-down if short-circuited or battery disconnected.
        Warranty3-year limited replacement warranty.



        What battery voltage can I charge?The OptiMate Solar DUO is suited for charging 12V lead acid and 12.8V / 13.2V Lithium (LifePO4 / LFP) batteries.
        What type of battery can I charge?

        OptiMate Solar DUO can charge and maintain the following battery types:

        • STD: 12V ‘wet’ cell / refillable lead-acid battery. Liquid acid can leak out if battery is turned on its side.
        • AGM: 12V sealed lead-acid battery, acid is fully contained within the battery. A 12V AGM battery holds a higher charged voltage than
        • STD lead-acid batteries.
        • GEL: 12V GEL sealed lead-acid battery, acid is fully contained within the battery. A GEL battery holds similar charged voltages to AGM.
        • LFP: 12.8V / 13.2V sealed Lithium Ferrous Phospate battery. Lithium batteries contain no acid. A LFP battery holds a higher charged voltage than AGM / GEL.

        Important - OptiMate Solar DUO is suitable ONLY for 4 series cell Lithium Ferrous Phosphate or Lithium Iron Phosphate batteries. DO

        NOT ATTEMPT TO CHARGE any other type of Lithium battery

        How to connect?

        1. Solar panel cable

        2. Controller input

        3. Controller output cable

        4a. O-01 Permanent battery lead

        4b. O-04 Battery clips 5. Battery



        This will also be a video with the upcoming DUO solars

        What are 'MONITOR MODE' and 'CHARGE MODE'?

        MONITOR MODE - When the solar panel stops delivering power (sun has gone down in the evening or cloud covers sun) the
        OptiMate Solar DUO controller changes to BATTERY MONITOR mode and will now indicate battery charge level every 3 seconds.
        LED 2, 3, 4 or 5 indicate battery charge level.

        CHARGE MODE - LED #1 lights if the solar panel can deliver charge. LED #1 flashes when charge current is delivered to the
        battery. Speed of flashing corresponds to current delivered i.e. fast means high current, slow means low current (cloudy
        conditions or battery is not accepting high current).
        LED 2, 3, 4 or 5 indicate charge progress whilst CHARGE LED #1 is flashing. If no battery is connected only LED #1 turns on.

        When is battery charged?If the battery is sufficiently charged, LED #4 or 5 will immediately light together with LED #1 (flashing).
        When battery needs charge?If the battery needs further charging LED #2 or LED #3 will light together with LED #1 (flashing).


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