{"product_id":"20a-12v-24v-pwm-solar-charge-controller-dual-usb-lead-acid","title":"20A 12V\/24V PWM Solar Charge Controller with Dual USB Ports for Lead-Acid Batteries","description":"\u003cp data-start=\"1752\" data-end=\"1946\"\u003eKeep your small solar charging setup under control with this \u003cstrong data-start=\"1813\" data-end=\"1856\"\u003e20A 12V\/24V PWM Solar Charge Controller\u003c\/strong\u003e, designed for basic off-grid direct current systems using compatible lead-acid batteries.\u003c\/p\u003e\r\n\u003cp data-start=\"1948\" data-end=\"2288\"\u003eThis compact controller automatically detects 12 volt or 24 volt battery systems, manages solar charging using Pulse Width Modulation charging, and includes an LCD display for checking system status at a glance. Dual Universal Serial Bus output ports are also included for charging suitable 5 volt devices from the connected battery system.\u003c\/p\u003e\r\n\u003cp data-start=\"2290\" data-end=\"2528\"\u003eIt is best suited to small solar panel installations for caravans, motorhomes, sheds, camping setups, battery maintenance, and other low-voltage solar projects where a simple charge regulator is needed between the solar panel and battery.\u003c\/p\u003e\r\n\u003cp data-start=\"2530\" data-end=\"2779\"\u003eImportant: this controller is for compatible lead-acid batteries only. It is not suitable for lithium, lithium iron phosphate, nickel-metal hydride, or other battery chemistries unless the exact supplied unit and manual specifically confirm support. \u003c\/p\u003e\r\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"2786\" data-end=\"2801\"\u003eKey Features\u003c\/h2\u003e\r\n\u003cp data-start=\"2803\" data-end=\"3450\"\u003e• 20 amp solar charge controller for small 12 volt and 24 volt direct current systems\u003cbr data-start=\"2888\" data-end=\"2891\"\u003e • Automatic 12 volt \/ 24 volt battery system detection\u003cbr data-start=\"2945\" data-end=\"2948\"\u003e • Pulse Width Modulation charging for compatible lead-acid batteries\u003cbr data-start=\"3016\" data-end=\"3019\"\u003e • Suitable for open, absorbent glass mat and gel lead-acid batteries\u003cbr data-start=\"3087\" data-end=\"3090\"\u003e • LCD display for basic system status and settings\u003cbr data-start=\"3140\" data-end=\"3143\"\u003e • Dual Universal Serial Bus output ports for suitable 5 volt devices\u003cbr data-start=\"3211\" data-end=\"3214\"\u003e • Built-in protection functions for common wiring and load faults\u003cbr data-start=\"3279\" data-end=\"3282\"\u003e • Compact design for caravan, motorhome, shed, camping and solar battery projects\u003cbr data-start=\"3363\" data-end=\"3366\"\u003e • Simple screw-terminal connection layout for battery, solar panel and load wiring \u003c\/p\u003e\r\n\u003ch2 data-section-id=\"1mxnvfy\" data-start=\"3457\" data-end=\"3489\"\u003eImportant Compatibility Notes\u003c\/h2\u003e\r\n\u003cp data-start=\"3491\" data-end=\"4098\"\u003e• Connect the battery first so the controller can detect the system voltage correctly\u003cbr data-start=\"3576\" data-end=\"3579\"\u003e • Use only with compatible lead-acid battery types: open, absorbent glass mat and gel\u003cbr data-start=\"3664\" data-end=\"3667\"\u003e • Do not use with lithium, lithium iron phosphate, nickel-metal hydride or other unsupported batteries\u003cbr data-start=\"3769\" data-end=\"3772\"\u003e • Do not connect a mains charger, alternator charger, bench power supply or other charging source to the solar input\u003cbr data-start=\"3888\" data-end=\"3891\"\u003e • Match your solar panel voltage, battery voltage, wiring size and fuse protection to the controller rating\u003cbr data-start=\"3998\" data-end=\"4001\"\u003e • Installation should be carried out by someone familiar with low-voltage direct current wiring \u003c\/p\u003e\r\n\u003ch3 data-section-id=\"nucr17\" data-start=\"4105\" data-end=\"4133\"\u003eTechnical Specifications\u003c\/h3\u003e\r\n\u003cp data-start=\"4135\" data-end=\"5206\"\u003e• Product Type: Solar charge controller\u003cbr data-start=\"4174\" data-end=\"4177\"\u003e • Charging Method: Pulse Width Modulation\u003cbr data-start=\"4218\" data-end=\"4221\"\u003e • Rated Current: 20A\u003cbr data-start=\"4241\" data-end=\"4244\"\u003e • System Voltage: 12V \/ 24V automatic detection\u003cbr data-start=\"4291\" data-end=\"4294\"\u003e • Battery Compatibility: Open, absorbent glass mat and gel lead-acid batteries\u003cbr data-start=\"4372\" data-end=\"4375\"\u003e • Not Compatible With: Lithium, lithium iron phosphate, nickel-metal hydride and unsupported battery types\u003cbr data-start=\"4481\" data-end=\"4484\"\u003e • Display: LCD status display\u003cbr data-start=\"4513\" data-end=\"4516\"\u003e • Universal Serial Bus Output: Dual 5V ports, rating to be confirmed from supplied unit\u003cbr data-start=\"4603\" data-end=\"4606\"\u003e • Solar Input Type: Direct current photovoltaic solar panel input\u003cbr data-start=\"4671\" data-end=\"4674\"\u003e • Load Output: Direct current load terminals\u003cbr data-start=\"4718\" data-end=\"4721\"\u003e • Protection Functions: Short-circuit, reverse polarity, overload and reverse-current protection features\u003cbr data-start=\"4826\" data-end=\"4829\"\u003e • Maximum Solar Input Power: Verify from supplied manual before publishing\u003cbr data-start=\"4903\" data-end=\"4906\"\u003e • Approximate Size: Verify from supplied unit before publishing\u003cbr data-start=\"4969\" data-end=\"4972\"\u003e • Connection Type: Screw terminals\u003cbr data-start=\"5006\" data-end=\"5009\"\u003e • Included Items: 1x solar charge controller, 1x user manual\u003cbr data-start=\"5069\" data-end=\"5072\"\u003e • Condition: New\u003cbr data-start=\"5088\" data-end=\"5091\"\u003e • Product Category: Solar panels and accessories\u003cbr data-start=\"5139\" data-end=\"5142\"\u003e • Applications: Caravan solar, camping power, battery charging \u003c\/p\u003e\r\n\u003ch2 data-section-id=\"6hv2og\" data-start=\"5213\" data-end=\"5232\"\u003ePackage Includes\u003c\/h2\u003e\r\n\u003cp data-start=\"5234\" data-end=\"5299\"\u003e1x 20A 12V\/24V PWM solar charge controller\u003cbr\u003e\u003cbr\u003e*The image is for illustrative purposes only. Due to variations in camera settings, lighting, manufacturing processes, monitors, and supply, colours may differ. Product appearance and specifications are subject to change without notice.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\r\n\u003cp\u003eCombine \u0026amp; Save. Explore our range of cables, parts and accessories. We also offer \u003cstrong\u003e\u003cstrong\u003ebulk discounts\u003c\/strong\u003e\u003c\/strong\u003e to New Zealand-based \u003cstrong\u003e\u003cstrong\u003ebusinesses\u003c\/strong\u003e, \u003cstrong\u003eschools\u003c\/strong\u003e, \u003c\/strong\u003eand \u003cstrong\u003e\u003cstrong\u003egovernment agencies\u003c\/strong\u003e — \u003cstrong\u003econtact us for pricing on larger orders!\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions (FAQs):\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003ch3 data-section-id=\"1hkdaaa\" data-start=\"7791\" data-end=\"7835\"\u003eCan this be used with lithium batteries?\u003c\/h3\u003e\r\n\u003cp data-start=\"7837\" data-end=\"8054\"\u003eNo. Unless the exact supplied unit and manual specifically state otherwise, this controller should be treated as suitable for lead-acid batteries only. Use it with open, absorbent glass mat or gel lead-acid batteries.\u003c\/p\u003e\r\n\u003ch3 data-section-id=\"nk2dm4\" data-start=\"8056\" data-end=\"8093\"\u003eIs this an MPPT solar controller?\u003c\/h3\u003e\r\n\u003cp data-start=\"8095\" data-end=\"8207\"\u003eNo. This is a Pulse Width Modulation solar charge controller, not Maximum Power Point Tracking.\u003c\/p\u003e\r\n\u003ch3 data-section-id=\"mdi1vq\" data-start=\"8209\" data-end=\"8254\"\u003eCan I connect a 230 volt charger to this?\u003c\/h3\u003e\r\n\u003cp data-start=\"8256\" data-end=\"8388\"\u003eNo. This is for low-voltage direct current solar panel input only. Do not connect mains power or a mains charger to the solar input.\u003c\/p\u003e\r\n\u003ch3 data-section-id=\"13mwtzt\" data-start=\"8390\" data-end=\"8428\"\u003eWhat order should I connect it in?\u003c\/h3\u003e\r\n\u003cp data-start=\"8430\" data-end=\"8576\"\u003eConnect the battery first, then the solar panel, then the load. When disconnecting, remove the load first, then the solar panel, then the battery.\u003c\/p\u003e\r\n\u003ch3 data-section-id=\"1q3w2ro\" data-start=\"8578\" data-end=\"8624\"\u003eIs it suitable for a caravan or motorhome?\u003c\/h3\u003e\r\n\u003cp data-start=\"8626\" data-end=\"8845\"\u003eYes, it may be suitable for small 12 volt or 24 volt caravan and motorhome solar charging setups using compatible lead-acid batteries, provided the solar panel, battery, wiring and fuse protection are correctly matched.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eWarranty \u0026amp; Returns:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cdiv\u003e14-day 'change of mind' return in unused condition for a refund less shipping fees.\u003c\/div\u003e\r\n\u003cdiv\u003e1-Year return-to-base refund or replacement guarantee.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\u003ch2\u003e\u003cstrong style=\"font-size: 11px;\"\u003e\u003cstrong\u003eCan't find what you're looking for? \u003cstrong\u003e\u003ca title=\"Techexpress NZ - Contact Us\" href=\"https:\/\/www.techexpress.co.nz\/pages\/contact-us\" target=\"_blank\" data-sentry-element=\"Link\" data-sentry-component=\"SXLink\" data-sentry-source-file=\"SXLink.tsx\" data-discover=\"true\"\u003eContact Us\u003c\/a\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003c\/div\u003e","brand":"Techexpress NZ","offers":[{"title":"Default","offer_id":42885059313762,"sku":"SOLAR-CHG-CTRL-20A-12V24V-NZ","price":19.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1907\/5887\/files\/20a-12v-24v-pwm-solar-charge-controller-01__1__TQJA4R1S9833.jpeg?v=1778451056","url":"https:\/\/www.techexpress.co.nz\/products\/20a-12v-24v-pwm-solar-charge-controller-dual-usb-lead-acid","provider":"Techexpress NZ","version":"1.0","type":"link"}