{"product_id":"20a-12v-dc-to-dc-battery-to-battery-charger-with-solar-input-4boats","title":"20A 12V DC-to-DC Battery-to-Battery Charger with Solar Input | 4Boats","description":"\u003cp\u003eAutomatic 20 A 12 V DC-to-DC battery-to-battery charger with built‑in solar input, multi‑stage charging and selectable modes for Lead‑acid, AGM\/Gel, Calcium or Lithium‑ion batteries.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCalcium or Lithium-ion Batteries Function: This powerful, high-quality battery-to-battery charger can charge a 12 V battery from another 12 V battery or from a solar panel; up to 20 A charging current.\u003c\/li\u003e\n\u003cli\u003ePowerful solar charge controller with overload protection: compatible with solar panels 16.0–25.0 V, maximum solar input 20 A; automatically activates when no battery-to-battery charging is present.\u003c\/li\u003e\n\u003cli\u003eFully automatic high-frequency multi-stage charging: bulk, absorption and float stages with pulsed charging to keep temperatures low and extend battery life.\u003c\/li\u003e\n\u003cli\u003eEasy battery-type selection: push-button switching between Lead Acid, AGM\/Gel, Calcium or Lithium‑ion; unit remembers the selected battery type even without power.\u003c\/li\u003e\n\u003cli\u003eSafe unattended charging: built-in protections against overload, overheating, overvoltage, over-discharge, short circuit and reverse discharge so it can be left permanently connected.\u003c\/li\u003e\n\u003cli\u003eContinued charging during battery\/load use and ignition on\/off control: can be set to begin battery-to-battery charging when ignition is on and stop when ignition is off.\u003c\/li\u003e\n\u003cli\u003eDeep-discharge recovery: soft-start charging programme and a minimum output battery voltage of only 2.0 V to recover batteries with a high depth of discharge.\u003c\/li\u003e\n\u003cli\u003eAdditional features: LED indicators show target charging stage and selected battery type; compatible with any 12 V lead‑acid, AGM, Gel, Calcium or Li‑ion battery; user manual included for wiring and installation.\u003c\/li\u003e\n\u003cli\u003eSpecifications: Battery input voltage 12.5–16.0 V; maximum charging current 20 A; solar input voltage 16.0–25.0 V; maximum solar input current 20 A; bulk charge voltage 14.3 V (AGM\/Gel), 14.0 V (Lead Acid), 15.0 V (Calcium), 14.0 V (Li‑ion); float charge voltage 13.5 V; float charge current 100 mA; battery capacity 18–250 Ah; minimum output voltage 2.0 V; dimensions 21 x 13 x 4 cm (8.3 x 5.1 x 1.6 in); weight 900 g (2.0 lb); 1 year manufacturer warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSuitable for caravans, motorhomes and boats to share alternator charging and extend off‑grid runtime via solar. Follow the supplied user manual for correct wiring and safe installation.\u003c\/p\u003e","brand":"4Boats","offers":[{"title":"Default Title","offer_id":44904789344456,"sku":"DCDC-20A","price":119.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/4351\/9038\/files\/20a-12v-dc-to-12v-dc-automatic-multi-stage-battery-to-battery-charger-with-solar-input-for-lead-acid-calcium-or-lithium-ion-batteries-4boats.jpg?v=1768727220","url":"https:\/\/www.moonglowattractors.co.uk\/products\/20a-12v-dc-to-dc-battery-to-battery-charger-with-solar-input-4boats","provider":"Moonglow fishing                                                  ","version":"1.0","type":"link"}