{"product_id":"atem-power-12v-40a-dc-to-dc-battery-charger-mppt-system-kit-isolator-dual-battery","title":"Atem Power 12V 40A DC to DC Battery Charger MPPT System Kit Isolator Dual Battery","description":"\u003cp\u003e*Delivery:  2 to 5 working days from payment clearing, product type and stock levels dependant.\u003cbr\u003e*Order, payment, sale, refund and returns, Terms and Conditions Apply.\u003c\/p\u003e\n\u003cp\u003eWhen you can't reach mains power off-grid, the ATEM POWER 12V 40A DC to DC Battery Charger keeps a second battery topped up from your alternator or up to 40A of solar. A built-in MPPT regulator squeezes more out of your solar input, while a multi-stage charging profile (standby, pre-charge, constant current, constant voltage, full charge, re-charge) protects battery life across Lead Acid, AGM, Gel, Calcium and LiFePO4 chemistries. Reverse polarity, overload, over-temperature and short circuit protection are built in throughout.\u003c\/p\u003e\n\u003ch3 style=\"margin: 1.25em 0 0.5em;\"\u003eKey Features\u003c\/h3\u003e\n\u003ctable class=\"pu-table\" style=\"width: 100%; border-collapse: separate; border-spacing: 0; border: 0; box-shadow: none; outline: none; background: none; table-layout: fixed; margin: 0 0 1em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eMulti Stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eInput\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eDC Battery: 12.5–16.0V \/ Solar: 16.0–25.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eOutput \/ Charging Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003e14.4–15.4V (stops charging if alternator\/battery drops below 12.5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eDC: 40A \/ Solar: 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eMinimum Start Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003e2.5V (battery being charged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eSoft Start\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eYes, 40A soft charge current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eBulk Charge Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003e14.7V (AGM\/Gel) \/ 14.4V (Lead Acid) \/ 15.4V (Calcium) \/ 14.4V (LiFePO4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eFloat Charge Voltage \/ Current\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003e13.5V (AGM\/Gel\/Lead Acid\/Calcium) \/ 100mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003eBattery Range\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top; border-bottom: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003e120–1,200Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0.75em 0.4em 0; opacity: 0.65; vertical-align: top;\"\u003eRecommended Cable\u003c\/td\u003e\n\u003ctd style=\"border: 0; padding: 0.4em 0; vertical-align: top;\"\u003e10AWG (0–1m) \/ 6AWG (1–5m) \/ 4AWG (5m+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin: 1.25em 0 0.5em;\"\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual input — charges from solar (up to 40A) or your vehicle's alternator\u003c\/li\u003e\n\u003cli\u003eSix-stage charging: standby, pre-charge, constant current, constant voltage, full charge, re-charge\u003c\/li\u003e\n\u003cli\u003eSelectable profiles for Lead Acid, AGM, Gel, Calcium and LiFePO4 batteries\u003c\/li\u003e\n\u003cli\u003eBuilt-in MPPT regulator maximises energy harvested from solar panels\u003c\/li\u003e\n\u003cli\u003eReverse polarity, overload, over-temperature and short circuit protection\u003c\/li\u003e\n\u003cli\u003eSmart-alternator compatible via ACC wire connection to the ignition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 1.25em 0 0.5em;\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eWorks with Lead Acid, AGM, Gel, Calcium and LiFePO4 battery chemistries between 120–1,200Ah. Suitable for dual battery setups in 4WDs, caravans, RVs, campers, trailers and campervans, and compatible with smart\/variable-voltage alternators via the ACC line.\u003c\/p\u003e\n\u003ch3 style=\"margin: 1.25em 0 0.5em;\"\u003eHow to use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWire the charger between your starter battery (or solar array) and auxiliary battery, following the wiring diagram in this listing rather than the printed manual, which may cover an older model.\u003c\/li\u003e\n\u003cli\u003eSelect the battery profile that matches your auxiliary battery — Lead Acid, AGM, Gel, Calcium or LiFePO4.\u003c\/li\u003e\n\u003cli\u003eOn smart-alternator vehicles, connect the ACC wire to the ignition to enable lower input voltage operation.\u003c\/li\u003e\n\u003cli\u003eUse 10AWG cable for runs under 1m, 6AWG for 1–5m, and 4AWG for runs over 5m.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 1.25em 0 0.5em;\"\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x ATEM POWER 40A DC-DC Charger\u003c\/li\u003e\n\u003cli\u003e1 x Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"pu-table\" style=\"width: 100%; border-collapse: separate; border-spacing: 0; border: 0; box-shadow: none; outline: none; background: none; table-layout: fixed; margin: 0;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd style=\"border: 0; padding: 0;\"\u003e\n\u003ch3 style=\"margin: 1.25em 0 0.5em;\"\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ctable class=\"pu-table\" style=\"width: 100%; border-collapse: separate; border-spacing: 0; border: 0; box-shadow: none; outline: none; background: none; table-layout: fixed; margin: 0 0 1em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd style=\"border: 0; padding: 0;\"\u003e\n\u003cdetails class=\"pu-faq\" style=\"padding: 0.45em 0;\"\u003e\n\u003csummary style=\"cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 10px; list-style: none;\"\u003e\u003cstrong\u003eCan I use this with a LiFePO4 battery?\u003c\/strong\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" width=\"18\" height=\"18\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"pu-faq-c\" style=\"width: 1em; height: 1em; flex: none; opacity: 0.6; transition: transform 0.15s;\" aria-hidden=\"true\"\u003e\u003cpath d=\"M6 9l6 6l6 -6\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\n\u003cp style=\"margin: 0.4em 0 0;\"\u003eYes — select the LiFePO4 profile and the charger applies the correct 14.4V bulk charge voltage for that chemistry.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pu-faq\" style=\"padding: 0.45em 0; border-top: 1px solid color-mix(in srgb,currentColor 12%,transparent);\"\u003e\n\u003csummary style=\"cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 10px; list-style: none;\"\u003e\u003cstrong\u003eDoes it work with a smart (variable-voltage) alternator?\u003c\/strong\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" width=\"18\" height=\"18\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"pu-faq-c\" style=\"width: 1em; height: 1em; flex: none; opacity: 0.6; transition: transform 0.15s;\" aria-hidden=\"true\"\u003e\u003cpath d=\"M6 9l6 6l6 -6\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\n\u003cp style=\"margin: 0.4em 0 0;\"\u003eYes — wire the ACC line to your ignition to enable the lower input voltage operation designed for smart alternators.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Atem Power","offers":[{"title":"Default Title","offer_id":57994312450351,"sku":"VABG008A-VOR","price":4750.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/2060\/7791\/files\/battery-charger-vabg008a-vor-new-web_20-02.webp?v=1779789028","url":"https:\/\/goprepared.co.za\/products\/atem-power-12v-40a-dc-to-dc-battery-charger-mppt-system-kit-isolator-dual-battery","provider":"Go Prepared 4X4 and Camping","version":"1.0","type":"link"}