{"catalog_name":"World Products","variant":"c","item":{"handle":"40a-12v-12v-compact-dc-dc-battery-to-battery-charger-with-solar-input","title":"40A 12V→12V Compact DC-DC Battery-to-Battery Charger with Solar Input","category":"DC to DC Charger","category_name":null,"category_gid":null,"product_type":"DC to DC Charger","vendor":"Photonic Universe","price":"$103.35","currency_code":"USD","availability":"in_stock","inventory_quantity":0,"sku":"DCDC-40A","barcode":null,"variant_title":"Default Title","selected_options":{"Title":"Default Title"},"description":"40A 12V→12V DC-DC Battery-to-Battery Charger with Integrated MPPT Solar Input This high-performance 40A DC-DC charger allows a 12V leisure or auxiliary battery to be charged from a 12V starter battery or alternator, and also features a built-in MPPT solar input for charging from solar panels when parked. Combining two charging systems in one compact, efficient unit simplifies installation and extends your off-grid runtime — ideal for campervans, motorhomes, caravans and boats. The intelligent multi-stage charging program ensures each connected battery type receives the correct voltage and current profile for optimum life and performance. With one-button programming, advanced protections, and continued charging even under load, the DCDC-40A delivers professional-grade functionality in a user-friendly format. Key Features Dual-input operation: charges from alternator or solar panel (up to 40A) with automatic input switching. Integrated MPPT solar controller: maximises solar efficiency and activates automatically when battery-to-battery charging is not required. Multi-stage smart charging: precise charging for Lead Acid, AGM, Gel, Calcium and Lithium-ion batteries for longer lifespan and performance stability. One-button battery type selection: quick configuration with memory retention even after power loss. Safe unattended operation: built-in protection against overload, overheating, over-voltage, reverse discharge and short circuit. Supports charging under load: powers 12V appliances while maintaining battery charge stability. Ignition or voltage-sensing control: automatically starts and stops charging with engine operation or based on battery voltage levels. Deep discharge recovery: capable of restoring batteries with output voltage as low as 2.0V. LED indicators: show charge stage, power source and selected battery type for clear visual feedback. Technical Specifications Battery input voltage 12.5 – 16.0 V Maximum charging current 40 A Solar input voltage 16 – 25 V Maximum solar input current 40 A Minimum target battery voltage 2.0 V (recovery) Bulk charge voltage 14.7 V (AGM/Gel), 14.4 V (Lead Acid), 15.4 V (Calcium), 14.4 V (Li-ion) Float charge voltage 13.5 V Recommended battery capacity 60 – 600 Ah Dimensions (L × W × H) 307 × 198 × 45 mm Weight 1.2 kg Warranty 1 year Compatibility & Installation Suitable for any 12V battery system, including Lead Acid, AGM, Gel, Calcium and Lithium-ion types. Not compatible with 24V systems or mixed-voltage setups. Use correctly rated cabling and fuses, and ensure the charger is mounted in a ventilated location. Ignition and voltage-sensing control options make it adaptable for a wide range of vehicle and marine installations. Documents Available Installation and user guide available for download","image_url":"https://cdn.shopify.com/s/files/1/1076/9324/4755/files/DCDC-40A1.png?v=1789038809","href":"/product/40a-12v-12v-compact-dc-dc-battery-to-battery-charger-with-solar-input.html","buy_url":"https://xyjpsn-3p.myshopify.com/products/40a-12v-12v-compact-dc-dc-battery-to-battery-charger-with-solar-input","buy_url_source":"shops.shop_domain + product.handle","seller_name":"xyjpsn-3p.myshopify.com","seller_url":"https://xyjpsn-3p.myshopify.com/","return_policy_url":"https://xyjpsn-3p.myshopify.com/policies/refund-policy","media":[{"url":"https://cdn.shopify.com/s/files/1/1076/9324/4755/files/DCDC-40A1.png?v=1789038809","alt":null,"position":0}],"related":[{"handle":"30a-12v-12v-compact-dc-dc-battery-to-battery-charger","title":"30A 12V→12V Compact DC-DC Battery-to-Battery Charger","category":"DC to DC Charger","price":"$83.85","image_url":"https://cdn.shopify.com/s/files/1/1076/9324/4755/files/DC1212-30SDCtoDCcharger1.png?v=1789038812","sku":"DC1212-30S","href":"/product/30a-12v-12v-compact-dc-dc-battery-to-battery-charger.html"},{"handle":"45a-12v-12v-compact-dc-dc-battery-to-battery-charger","title":"45A 12V→12V Compact DC-DC Battery-to-Battery Charger","category":"DC to DC Charger","price":"$109.85","image_url":"https://cdn.shopify.com/s/files/1/1076/9324/4755/files/DC1212-30SDCtoDCcharger1_a067b64a-24ef-4cf2-ba49-1d5f790689dc.png?v=1789038810","sku":"DC1212-45S","href":"/product/45a-12v-12v-compact-dc-dc-battery-to-battery-charger.html"},{"handle":"30a-12v-12v-compact-dc-dc-battery-to-battery-charger-20a-solar-input","title":"30A 12V→12V Advanced DC-DC Battery Charger with 20A MPPT Solar Input","category":"DC to DC Charger","price":"$155.35","image_url":"https://cdn.shopify.com/s/files/1/1076/9324/4755/files/DC1212-3020DCtoDCchargerwithsolarinput1.png?v=1789038807","sku":"DC1212-3020","href":"/product/30a-12v-12v-compact-dc-dc-battery-to-battery-charger-20a-solar-input.html"},{"handle":"60a-12v-12v-advanced-dc-dc-battery-charger","title":"60A 12V→12V Advanced DC-DC Battery Charger","category":"DC to DC Charger","price":"$139.75","image_url":"https://cdn.shopify.com/s/files/1/1076/9324/4755/files/DC1212-60DCtoDCcharger2.png?v=1789038805","sku":"DC1212-60","href":"/product/60a-12v-12v-advanced-dc-dc-battery-charger.html"}]}}