{"title":"Renogy DC-DC Chargers","description":"\u003cp\u003eAlternator charging while you drive, with the voltage control a modern smart alternator needs. Sold by Renogy UK.\u003c\/p\u003e","products":[{"product_id":"renogy-12v-20a-dc-to-dc-battery-charger","title":"12V 20A DC to DC Battery Charger","description":"\u003cp\u003e\u003cstrong\u003e20A, 292W, and a smart-alternator input range that starts at 12V.\u003c\/strong\u003e The smallest of Renogy's DC-DC chargers — right for a modest leisure bank, or a second vehicle where you want alternator charging without running heavy cable.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20A maximum output\u003c\/strong\u003e, 292W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuro 6 smart alternators\u003c\/strong\u003e, 12–16V input; traditional alternators 13.2–16V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e94% charging efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAGM, gel, flooded, LiFePO4 and user profiles\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eReverse polarity, overvoltage, overcurrent and over-temperature protection\u003c\/li\u003e\n\u003cli\u003e1.5kg, 236.5 × 131.5 × 60.5mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy a Euro 6 van needs one of these\u003c\/h3\u003e\u003cp\u003eA modern smart alternator drops its output voltage as soon as the starter battery is topped up — often to around 12.5V — because the ECU is chasing emissions figures, not charging your leisure bank. A split charge relay simply passes that low voltage through, and a lithium pack will barely take anything from it. A DC-DC charger takes whatever the alternator gives and boosts it to a proper charge profile, which is why it is not optional on anything Euro 6 and later.\u003c\/p\u003e\u003ch3\u003eSizing and cable\u003c\/h3\u003e\u003cp\u003e20A into a 100Ah bank is a reasonable match — roughly five hours of driving from empty to full, which suits a van that moves most days. Terminals accept 10AWG to 8AWG. Size the cable for the run length, not just the current: a long run to a rear locker needs a step up to keep volt drop sensible.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eFit the specified fuses at both ends — 40A on the input, 30A on the output — close to each battery's positive terminal. The charger needs an ignition trigger so it only runs with the engine on; check your vehicle has an accessible switched live before you start.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358082957479,"sku":"RBC20D1U-BT2-UK","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/01__81518.1730087104.1280.1280.jpg?v=1789800303"},{"product_id":"renogy-dcc30s-12v-30a-dual-input-dc-dc-on-board-battery-charger-with-mppt","title":"12V 30A DC-DC On-Board Battery Charger with MPPT","description":"\u003cp\u003e\u003cstrong\u003e30A of alternator charging and an MPPT solar controller in one box.\u003c\/strong\u003e Two charge sources, one unit, one set of cable runs to the battery — the reason this is the most popular shape of charger in van conversions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30A maximum output\u003c\/strong\u003e, 400W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual input\u003c\/strong\u003e, alternator and built-in MPPT solar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuro 6 smart alternators\u003c\/strong\u003e, 12–16V input; traditional 13.2–16V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e94% charging efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485\u003c\/strong\u003e, Bluetooth module available\u003c\/li\u003e\n\u003cli\u003e1.41kg, 244 × 146 × 77mm, −35°C to 65°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOne box instead of two\u003c\/h3\u003e\u003cp\u003eThe alternative is a separate DC-DC charger and a separate solar controller, each with its own pair of heavy cables to the battery and its own fusing. Combining them saves a run, saves a fuse pair, and — more usefully — means one device is arbitrating between the two sources rather than two devices both trying to hold the bus voltage.\u003c\/p\u003e\u003ch3\u003eWhere 30A lands\u003c\/h3\u003e\u003cp\u003e30A suits a 100–200Ah bank. Below that you are over-specified; much above it and a day's driving stops making a meaningful dent, at which point the 50A is the better buy. Terminals take 8AWG to 4AWG, which is the right range for a typical cab-to-habitation run.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eFusing is specified at 75–100A on both input and output — heavier than the 20A unit, so plan the cable accordingly. The wide −35°C to 65°C operating range means it is happy in an unheated locker even if the battery it feeds is not.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358082990247,"sku":"RBC30D1S-BT-UK","price":169.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/59760_source_1702888348__79693.1745566896.1280.1280.jpg?v=1789800304"},{"product_id":"renogy-12v-40a-dc-to-dc-battery-charger","title":"12V 40A DC to DC Battery Charger","description":"\u003cp\u003e\u003cstrong\u003e40A, 584W, supplied with the temperature sensor and ignition wire.\u003c\/strong\u003e The middle of Renogy's alternator-only range — a sensible step up when 30A is not putting enough back on a driving day and you already have solar handled separately.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e40A maximum output\u003c\/strong\u003e, 584W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuro 6 smart alternators\u003c\/strong\u003e, 12–16V input; traditional 13.2–16V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e94% charging efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature sensor and ignition wire included\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eReverse polarity, overvoltage, overcurrent and over-temperature protection\u003c\/li\u003e\n\u003cli\u003e1.88kg, 236.5 × 152.5 × 58mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat 40A is worth on a driving day\u003c\/h3\u003e\u003cp\u003e40A is roughly 500Wh per hour of driving into a 12V bank. Two hours on the motorway is a meaningful refill for a 200Ah pack — the point at which alternator charging stops being a trickle and starts being your primary source between October and March, when the roof contributes very little.\u003c\/p\u003e\u003ch3\u003eCheck the alternator can give it\u003c\/h3\u003e\u003cp\u003eDrawing 40A at the leisure end means pulling appreciably more than that from the alternator once you account for the cab loads already on it. On a small van with a modest alternator, running this flat out alongside headlights, heater blower and heated screen is asking a lot. If in doubt, size down rather than up — or check the alternator rating before committing.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eTerminals take 8AWG to 6AWG. Fuses are specified at 60A input and 50A output. The included temperature sensor is worth fitting rather than leaving in the box: it lets the charger back off when the battery is cold, which is exactly when you want it to.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358083023015,"sku":"RCB40D1U-BT2-UK","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/RCB40D1U-BT2-UK_378841ad-f4b5-40ca-a3df-48a34cd81c1e.jpg?v=1789800304"},{"product_id":"renogy-dc-dc-on-board-battery-charger-with-mppt-new-version","title":"12V 50A DC-DC On-Board Battery Charger with MPPT","description":"\u003cp\u003e\u003cstrong\u003e50A of alternator charging plus an MPPT solar controller, 660W total.\u003c\/strong\u003e The version of the dual-input charger to buy if your bank is 200Ah or larger, or if you want a day's driving to genuinely refill it rather than top it up.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e50A maximum output\u003c\/strong\u003e, 660W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual input\u003c\/strong\u003e, alternator and built-in MPPT solar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuro 6 smart alternators\u003c\/strong\u003e, 12–16V input; traditional 13.2–16V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e94% charging efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485\u003c\/strong\u003e, Bluetooth module available\u003c\/li\u003e\n\u003cli\u003e1.86kg, 244 × 146 × 96mm, −35°C to 65°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e50A changes the arithmetic\u003c\/h3\u003e\u003cp\u003eAt 50A you are putting roughly 600Wh into the bank per hour of driving. For a full-time build with a 300Ah pack that is the difference between arriving somewhere with a half-charged battery and arriving full. It is also the point where the alternator becomes a serious winter charging source rather than a supplement to solar.\u003c\/p\u003e\u003ch3\u003eMind the alternator and the cable\u003c\/h3\u003e\u003cp\u003e50A at the output is a real load on the vehicle side, so confirm your alternator has the headroom, particularly on smaller vans. Fusing is specified at 75–100A on both input and output, and terminals take 8AWG to 4AWG — use the heavier end for a long run from the cab to a rear locker.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eSame footprint as the 30A but 96mm deep rather than 77mm, so check clearance if you are mounting it in a shallow space. It wants air around it: at 50A this unit makes real heat, and a sealed cupboard will make it derate.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358083055783,"sku":"RBC50D1S-BT-UK","price":199.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/RBC50D1S-BT-UK_715d0731-871c-4665-a9f2-3cc19e03c6ef.jpg?v=1789800305"},{"product_id":"renogy-12v-60a-dc-to-dc-on-board-battery-charger","title":"12V 60A DC to DC On-Board Battery Charger","description":"\u003cp\u003e\u003cstrong\u003e60A and 750W — the largest alternator charger Renogy make for a 12V system.\u003c\/strong\u003e Alternator input only, no solar stage, so this is the one for a build where solar is already handled by a separate controller and you want maximum current from the engine.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e60A rated charge current\u003c\/strong\u003e, 750W output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8–16V input range\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost 14.1–14.7V, float 13.2–13.8V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating range −20°C to +50°C\u003c\/li\u003e\n\u003cli\u003e2.4kg, 311 × 175 × 68mm\u003c\/li\u003e\n\u003cli\u003eTemperature sensor available separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWho actually needs 60A\u003c\/h3\u003e\u003cp\u003eA 300Ah or larger bank, in a van that drives regularly and needs to be full when it stops. Below about 200Ah this is over-specified — the battery's own charge acceptance becomes the limit and you have paid for current you cannot use. Check your battery's maximum charge current before ordering: several packs in the Core Mini range cap at 100A or 150A total across all sources.\u003c\/p\u003e\u003ch3\u003eThe load on the vehicle\u003c\/h3\u003e\u003cp\u003e60A out means well over 60A drawn from the alternator. On a mid-size van with cab loads running, that is a substantial continuous demand — worth confirming the alternator rating, and worth sizing the cable from the starter battery generously. Volt drop on the input side directly reduces what the charger can deliver.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNo MPPT stage here, so budget for a separate solar controller if you have panels. Idle consumption is specified at under 0.4A, which is higher than the MPPT units — make sure the ignition trigger is wired properly so it is not sitting awake when the van is parked for a week.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358083088551,"sku":"RNG-DCC1212-60-UK","price":143.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/dcc60__90483.1730254280.1280.1280.jpg?v=1789800306"},{"product_id":"renogy-monitoring-screen-for-30-50a-dc-dc-mppt-battery-charger","title":"Monitoring Screen for 30\/50A DC-DC MPPT Battery Charger","description":"\u003cp\u003e\u003cstrong\u003eA wired display for the 30A and 50A DC-DC MPPT chargers.\u003c\/strong\u003e The alternative to the Bluetooth module: a screen you can actually glance at, mounted where you walk past it, rather than a reading you have to go and fetch your phone for.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFor Renogy \u003cstrong\u003e30A and 50A DC-DC MPPT\u003c\/strong\u003e battery chargers\u003c\/li\u003e\n\u003cli\u003eWired connection, no pairing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-year\u003c\/strong\u003e prorated material and workmanship warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eScreen or Bluetooth?\u003c\/h3\u003e\u003cp\u003eBluetooth is better for setup and for digging into history. A fixed screen is better for the thing you do every day, which is glance at whether solar is producing and whether the alternator is charging. Plenty of builds end up with both; if you are choosing one, pick the screen if the charger lives somewhere awkward to reach and the phone app if it does not.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eCheck your charger model first — this fits the 30A and 50A MPPT units and not the alternator-only 20A, 40A or 60A chargers. Plan a cable route to wherever you want the display: a screen mounted somewhere you never look is money wasted.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358083154087,"sku":"RMS-DCDC-UK","price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/02__29410.1626400239.1280.1280.jpg?v=1789800308"},{"product_id":"renogy-rego-12v-60a-dc-dc-battery-charger","title":"REGO 12V 60A DC-DC Battery Charger","description":"\u003cp\u003e\u003cstrong\u003e60A with bidirectional charging — it looks after the starter battery too.\u003c\/strong\u003e The REGO charges the leisure bank from the starter battery while you drive, and once the leisure bank is full it reverses and maintains the starter battery instead. For a van that sits for weeks between trips, that second behaviour is the interesting one.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e60A\u003c\/strong\u003e charging on a 12V system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBidirectional\u003c\/strong\u003e, recharges the starter battery when the leisure bank is full\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-stage charging\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible with common 12V alternators and battery types\u003c\/li\u003e\n\u003cli\u003eSuited to vans, motorhomes, commercial vehicles and boats\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe starter battery problem\u003c\/h3\u003e\u003cp\u003eA converted van kills more starter batteries than it does leisure batteries. The vehicle sits for a fortnight, the alarm and the trackers and the radio memory drain it, and the leisure bank — full of solar, doing nothing — watches it happen. Bidirectional charging closes that loop: surplus goes back the other way and the van still starts after three weeks on a drive.\u003c\/p\u003e\u003ch3\u003eWho needs 60A\u003c\/h3\u003e\u003cp\u003eLarge banks, 300Ah and up, in vehicles that drive often enough for the alternator to matter. Check the maximum charge current your battery will accept before ordering — several packs cap below 60A, and paying for current the battery refuses is money on the floor.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003e60A is a serious continuous draw on the alternator once cab loads are added. Confirm the alternator rating, size the input cable for the run, and fuse both ends close to their respective batteries.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358083186855,"sku":"RBC1260DO-12B-UK","price":415.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/RBC1260DO-12B__16840.1718359984.1280.1280.jpg?v=1789800309"},{"product_id":"renogy-rego-12v-24v-30a-dc-dc-battery-charger","title":"REGO 12V\/24V 30A DC-DC Battery Charger","description":"\u003cp\u003e\u003cstrong\u003e30A, 450W, and it works on 12V or 24V at either end.\u003c\/strong\u003e The REGO 30A is the flexible one: 12V to 12V, 24V to 24V, or across the two. Add RS485 and Renogy CAN, and a five-year warranty, and it is the charger to pick for a system you expect to change.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30A maximum output\u003c\/strong\u003e, 450W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V or 24V\u003c\/strong\u003e input and output, 9–32V DC out\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e≥94% charging efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485 and Renogy CAN\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIP43, heat-sink cooled, 2.0kg, 239 × 156 × 69mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-year\u003c\/strong\u003e material warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy 24V capability is worth having\u003c\/h3\u003e\u003cp\u003eMost van conversions are 12V and will stay that way. But if you are working on a larger vehicle, a 24V chassis, or a build where a future move to 24V is plausible, a charger that handles both saves buying twice. It also means the same part number works across a fleet running mixed voltages.\u003c\/p\u003e\u003ch3\u003eTalking to the rest of the system\u003c\/h3\u003e\u003cp\u003eRS485 and Renogy CAN let this charger share information with compatible Renogy batteries, controllers and displays rather than working blind. Where the BMS reports a real state of charge, the charger can act on it. Mixing brands, you fall back to voltage-based charging, which still works — just less cleverly.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eIP43 is dust-protected and splash-resistant, not sealed — mount it inside the habitation space rather than underfloor. Recommended operating range is −35°C to 65°C, and it is cooled by heat sink alone, so leave air around the fins.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358092722343,"sku":"RBC2115DS-21W-UK","price":213.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/RBC2115DS-21W-__01.jpg?v=1789800405"},{"product_id":"renogy-40a-dc-dc-battery-charger-with-mppt","title":"RENOGY 40A DC-DC Battery Charger with MPPT","description":"\u003cp\u003e\u003cstrong\u003e40A of alternator charging plus an MPPT solar input, in a 1.2kg case.\u003c\/strong\u003e The lightest and most compact way to get both charge sources into one unit — useful when the electrical cupboard is already full.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e40A maximum output\u003c\/strong\u003e, 584W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPPT solar input\u003c\/strong\u003e, 10–30V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuro 6 smart alternators\u003c\/strong\u003e, 12–16V input; traditional 13.2–16V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10mA idle consumption\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e1.2kg, 195 × 149 × 48mm\u003c\/li\u003e\n\u003cli\u003eHeat-sink cooled, IP31\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCheck your panel voltage\u003c\/h3\u003e\u003cp\u003eThe solar input accepts 10–30V DC. That comfortably covers one or two 12V nominal panels in parallel, but a pair of panels in series will exceed it on a cold, bright morning when open-circuit voltage peaks. If you are planning a series string, either wire in parallel instead or choose a controller with a higher input ceiling.\u003c\/p\u003e\u003ch3\u003eVery low idle draw\u003c\/h3\u003e\u003cp\u003e10mA at idle is genuinely low — about a quarter of an amp-hour a day. For a van that sits for weeks between trips, that matters more than most spec-sheet numbers, because parasitic drain is what flattens banks over winter.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eIP31 and an operating range of −20°C to 45°C mean this belongs inside the habitation space, not underfloor or in a wet locker. Fuses are specified at 60A input and 50A output.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358092755111,"sku":"RBC40D1S-UK","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/40amp_dcdc_charger_1__91704.1727598802.1280.1280.jpg?v=1789800406"},{"product_id":"renogy-ip67-50a-dc-dc-battery-charger-with-mppt","title":"RENOGY IP67 50A DC-DC  Battery Charger with MPPT","description":"\u003cp\u003e\u003cstrong\u003eIP67, 97% efficient, 50A at 12V, and only 37.5mm deep.\u003c\/strong\u003e The sealed version of Renogy's dual-input charger — rated for temporary immersion, so it can be mounted underfloor or in a wet locker where every other unit in the range cannot.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e50A at 12V\u003c\/strong\u003e (25A at 24V), 720W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPPT solar input\u003c\/strong\u003e to 50V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e97% charging efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67\u003c\/strong\u003e, −35°C to 80°C operating range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModbus and RV-C\u003c\/strong\u003e communication\u003c\/li\u003e\n\u003cli\u003e1.86kg, 178.2 × 121.5 × 37.5mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhere you can put it\u003c\/h3\u003e\u003cp\u003eThis is the practical difference. IP67 and an 80°C ceiling mean the charger can live under the floor, in a rear garage, or in a locker that takes road spray — which is often the only place left once the bank, inverter and fuse board have taken the cupboard. At 37.5mm deep it also fits behind panelling that will not take the 96mm 50A unit.\u003c\/p\u003e\u003ch3\u003eA 50V solar input is genuinely useful\u003c\/h3\u003e\u003cp\u003eWhere the compact 40A unit tops out at 30V, this accepts up to 50V, which means you can wire two 12V nominal panels in series without worrying about cold-morning open-circuit voltage. Series wiring keeps current down, so the cable from the roof can be thinner over a long run.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003e97% efficiency is high, but 50A still makes heat — the sealed case relies on conduction to whatever it is bolted to, so mount it to something metallic where you can. Fuses at 75–100A both ends, terminals 8AWG to 4AWG.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358092787879,"sku":"KIT-RBC2125DS-W02W-UK","price":350.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/1__30785.1734421801.1280.1280.jpg?v=1789800407"}],"url":"https:\/\/shop.roamwired.com\/collections\/renogy-dc-dc-chargers.oembed","provider":"Roam Wired Shop","version":"1.0","type":"link"}