{"product_id":"mastervolt-solar-chargemaster-scm20-pwm-131822000","title":"Mastervolt Solar ChargeMaster - SCM20 PWM [131822000]","description":"\u003cdiv\u003e\n\u003ch1\u003eMastervolt Solar ChargeMaster SCM20 PWM\u003c\/h1\u003e\n\u003cp\u003eThe SCM20 PWM is a solar charge regulator that uses PWM technology to manage battery charging from solar panels, delivering safe, efficient power for boats, motorhomes, and other mobile installations. It supports 12V systems with 36-cell panels and 24V systems with 72-cell panels, enabling flexible configurations across marine and mobile applications.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePWM-based charge regulation for steady, safe battery charging\u003c\/li\u003e \u003cli\u003ePanel cell compatibility: 36-cell (12V) or 72-cell (24V)\u003c\/li\u003e \u003cli\u003eBattery compatibility: suitable for all lead-acid batteries in 12V and 24V systems\u003c\/li\u003e \u003cli\u003eRugged protection: water spray protection, tolerance to high ambient temperatures, and compatibility with negative grounding\u003c\/li\u003e \u003cli\u003eOptional temperature sensor available to optimize charging under varying conditions\u003c\/li\u003e \u003cli\u003eUser interface: large display and switchable output with evening \/ night lighting function\u003c\/li\u003e \u003cli\u003eDesigned for marine and mobile environments with a flexible, user-friendly design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance and electrical characteristics\u003c\/h2\u003e\n\u003cp\u003eEngineered to deliver reliable charge control for 12V and 24V lead-acid applications, SCM20 PWM adjusts charging based on panel input to preserve battery health. The device supports the specified panel configurations (36-cell for 12V and 72-cell for 24V) and accommodates negative-ground installations, improving compatibility with typical boat and vehicle electrical systems.\u003c\/p\u003e\n\u003ch2\u003eInstallation and maintenance\u003c\/h2\u003e\n\u003cp\u003eInstallation guidance and detailed wiring diagrams are provided in the official Mastervolt documentation. The SCM20 PWM is designed for marine and mobile environments; periodic inspection of connections and cabling is recommended. If the optional temperature sensor is used, ensure correct placement and connection per the manual.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSolar ChargeMaster SCM20 PWM\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis solar charge regulator based on PWM technology is a great solution to charge your batteries with solar energy. Suitable for both 36 cells panels (in 12V systems) and 72 cells panels (in 24V systems). Its protection against water spray, suitability for high ambient temperature and compatibility with negative grounding, make it the perfect solar regulator for marine and mobile environments. Optionally, a temperature sensor is available. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafe, User Friendly \u0026amp; Flexible\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SCM20 PWM is suitable for all types of lead-acid batteries in both 12V and 24V. The device features a large display and switchable output with evening \/ night lighting function.\u003c\/p\u003e \u003c!--- cis2:m2lqnZdk ---\u003e\n\u003c\/div\u003e","brand":"Green Vista Living","offers":[{"title":"Default Title","offer_id":45115969568883,"sku":"CWR-88345","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/9969\/3939\/files\/88345XL.jpg?v=1781807784","url":"https:\/\/ampereauthority.com\/products\/mastervolt-solar-chargemaster-scm20-pwm-131822000","provider":"Ampere Authority","version":"1.0","type":"link"}