{"product_id":"egis-xd-flex-l-lithium-battery-acr-500a-8610-1300","title":"Egis Mobile Electric XD Flex L Lithium Battery ACR \u0026 Switch","description":"\u003cp class=\"nvn-hero\"\u003eThe Egis Mobile Electric XD Flex L combines a 500 amp rotary battery switch with an automatic charging relay in one compact marine-grade unit. Built for boats running lithium house banks, it handles 8 to 36 volt DC systems, isolates your start battery, and manages charging hands-off.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Egis Mobile Electric XD Flex L is a combined battery management unit built for boats running lithium house banks. It pairs a 500 amp rotary disconnect switch with an automatic charging relay in one compact housing, so you get manual battery isolation and hands-off charge management from a single unit. Rated for 8 to 36 volt DC systems, it drops into 12 volt and 24 volt setups without any fuss.\u003c\/p\u003e\n\u003cp\u003eHere's what the relay side does. When a charging source brings the voltage up, whether that's the alternator, a shore charger, or solar, it ties your banks together so everything tops off. When charging stops, it isolates the banks again so your start battery stays protected and ready. You turn the key, the engine cranks. That's the whole job of an automatic charging relay, and Egis built this one to hold 500 amps continuous with a 1500 amp max cranking rating, so it won't flinch on a hard start.\u003c\/p\u003e\n\u003cp\u003eThe Flex L is the lithium-focused version of the XD line. If you've moved your house bank over to LiFePO4, you already know charge handling and isolation matter more than they did with old flooded batteries. This unit manages the handoff between a lithium house bank and a conventional start battery, keeping both charged when power's coming in and cleanly separated when it isn't. Lithium banks can accept a lot of current fast, so having the switch and relay rated to match keeps the whole path honest.\u003c\/p\u003e\n\u003cp\u003eThe rotary switch up front gives you a real mechanical disconnect. Twist the knob and the circuit is open, which is exactly what you want when you're working on wiring, leaving the boat for a while, or chasing a problem at the panel. Egis uses stainless steel self-locking hardware on the terminals, and the whole unit is rated from -40 to 221 degrees Fahrenheit. So it takes a hot engine room or a freezing winter layup in stride.\u003c\/p\u003e\n\u003cp\u003eAt 3.15 inches long, 2.59 wide, and 1.96 tall, it tucks into tight spaces. Owners running 22 to 26 foot center consoles have had good luck fitting it under the console, though on bigger boats with heavy cable runs you'll want to plan the space around your lugs. And size that cable to the load. For anything pushing toward the 500 amp rating, run heavy gauge cable and proper fusing so your lugs don't overheat. The 6P ATM\/DTM connector handles the control-side wiring.\u003c\/p\u003e\n\u003cp\u003eOne thing worth knowing up front. This unit has a 1.3 amp off-state current draw, so if you leave the boat on a mooring for weeks at a time, that draw adds up. Plenty of owners wire in a separate main cutoff for long-term storage, or just count on shore power or solar to keep the bank topped. It's not a flaw. It's how an active unit like this works, and it's easy to plan around.\u003c\/p\u003e\n\u003cp\u003eFor an install that lasts, hit the terminals with dielectric grease to keep corrosion out, especially if the unit lives anywhere near the bilge. A little anti-seize on the stainless threads doesn't hurt either, since salt air is hard on hardware. Do that, torque your lugs properly, and this becomes a set-it-and-forget-it part of your electrical system. That kind of attention pays off a few seasons down the line, when the boat next to yours has green crust on every terminal and yours still looks clean.\u003c\/p\u003e\n\u003cp\u003eSo who's this for? Anglers and cruisers running a lithium house bank who want automatic charging plus a solid manual disconnect without bolting up two separate devices. If you're still on a single flooded battery, it's more switch than you need. But if you've built out a real house bank, the XD Flex L earns its spot on the bulkhead.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e500 amp continuous rating with 1500 amp max cranking current, enough headroom for a hard engine start\u003c\/li\u003e\n  \u003cli\u003e8 to 36 volt DC operating range drops straight into 12V and 24V systems\u003c\/li\u003e\n  \u003cli\u003eAutomatic charging relay ties your banks together when charging and isolates them when it stops, protecting your start battery\u003c\/li\u003e\n  \u003cli\u003eFront rotary knob gives you a true mechanical disconnect for service or winter layup\u003c\/li\u003e\n  \u003cli\u003eFlex L series is purpose-built for lithium (LiFePO4) house banks\u003c\/li\u003e\n  \u003cli\u003eStainless steel self-locking terminal hardware stands up to salt air\u003c\/li\u003e\n  \u003cli\u003eRated -40 to 221 degrees Fahrenheit for hot engine rooms and cold storage\u003c\/li\u003e\n  \u003cli\u003eCompact 3.15 x 2.59 x 1.96 inch footprint fits tight console and locker spaces\u003c\/li\u003e\n  \u003cli\u003e6P ATM\/DTM connector keeps the control-side wiring clean\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Egis Mobile Electric reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does the XD Flex L actually do?\u003c\/summary\u003e\n    \u003cp\u003eIt's two things in one housing. A 500 amp rotary battery switch for manual disconnect, plus an automatic charging relay that ties your battery banks together while a charging source is active and isolates them when charging stops. That keeps your start battery protected and ready while your house bank takes the charge.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat voltage systems does it work with?\u003c\/summary\u003e\n    \u003cp\u003eIt's rated for 8 to 36 volt DC, so it drops into both 12 volt and 24 volt marine systems without any adapters.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow much current can it handle?\u003c\/summary\u003e\n    \u003cp\u003e500 amps continuous, with a 1500 amp maximum cranking current for engine starts. Size your cable and fusing to match the load you're actually running.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this made for lithium batteries?\u003c\/summary\u003e\n    \u003cp\u003eYes. The Flex L is the lithium-focused version of the XD line, set up to manage charging between a LiFePO4 house bank and a conventional start battery.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the off-state current draw and does it matter?\u003c\/summary\u003e\n    \u003cp\u003eIt draws 1.3 amps in the off state. Over a few weeks on a mooring that adds up, so many owners either wire in a separate main cutoff for long-term storage or keep the bank topped with shore power or solar. It's normal for an active unit like this.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat cable size should I use?\u003c\/summary\u003e\n    \u003cp\u003eMatch the cable to your load. For anything approaching the 500 amp rating, run heavy gauge cable with proper fusing so your lugs and terminals don't overheat.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow is the control side wired?\u003c\/summary\u003e\n    \u003cp\u003eThrough a 6P ATM\/DTM connector, which keeps the low-current control wiring separate and clean from the heavy battery lugs.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it survive the marine environment?\u003c\/summary\u003e\n    \u003cp\u003eIt's built for it. The unit is rated from -40 to 221 degrees Fahrenheit and uses stainless steel self-locking hardware. Add dielectric grease on the terminals and a little anti-seize on the threads and it holds up well in salt air.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow big is it and will it fit under my console?\u003c\/summary\u003e\n    \u003cp\u003eIt measures 3.15 inches long by 2.59 wide by 1.96 tall. Owners on 22 to 26 foot center consoles fit it under the console fine. On larger boats with heavy cable runs, plan the space around your lug clearance.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eEgis Mobile Electric XD Flex L Lithium Battery ACR\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eEgis Mobile Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e8610-1300\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e850053879449\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eXD Flex L\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eLithium Battery ACR \/ Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eMarine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOperating Voltage\u003c\/th\u003e\n\u003ctd\u003e8 to 36 Volt DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSwitch Type\u003c\/th\u003e\n\u003ctd\u003eRotary Switch with Knob\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eContinuous Current Rating\u003c\/th\u003e\n\u003ctd\u003e500 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMax Cranking Current\u003c\/th\u003e\n\u003ctd\u003e1500 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOff-State Current Draw\u003c\/th\u003e\n\u003ctd\u003e1.3 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e-40 to 221 Degrees Fahrenheit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTerminal Hardware\u003c\/th\u003e\n\u003ctd\u003eStainless Steel Self-Locking\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConnector Termination\u003c\/th\u003e\n\u003ctd\u003e6P ATM\/DTM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDimensions (L x W x H)\u003c\/th\u003e\n\u003ctd\u003e3.15 in x 2.59 in x 1.96 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eKeystone Part Number\u003c\/th\u003e\n\u003ctd\u003eEGI86101300\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does the XD Flex L actually do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's two things in one housing. A 500 amp rotary battery switch for manual disconnect, plus an automatic charging relay that ties your battery banks together while a charging source is active and isolates them when charging stops. That keeps your start battery protected and ready while your house bank takes the charge.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What voltage systems does it work with?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's rated for 8 to 36 volt DC, so it drops into both 12 volt and 24 volt marine systems without any adapters.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How much current can it handle?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"500 amps continuous, with a 1500 amp maximum cranking current for engine starts. Size your cable and fusing to match the load you're actually running.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this made for lithium batteries?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The Flex L is the lithium-focused version of the XD line, set up to manage charging between a LiFePO4 house bank and a conventional start battery.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the off-state current draw and does it matter?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It draws 1.3 amps in the off state. Over a few weeks on a mooring that adds up, so many owners either wire in a separate main cutoff for long-term storage or keep the bank topped with shore power or solar. It's normal for an active unit like this.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What cable size should I use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Match the cable to your load. For anything approaching the 500 amp rating, run heavy gauge cable with proper fusing so your lugs and terminals don't overheat.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How is the control side wired?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Through a 6P ATM\/DTM connector, which keeps the low-current control wiring separate and clean from the heavy battery lugs.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it survive the marine environment?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's built for it. The unit is rated from -40 to 221 degrees Fahrenheit and uses stainless steel self-locking hardware. Add dielectric grease on the terminals and a little anti-seize on the threads and it holds up well in salt air.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How big is it and will it fit under my console?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It measures 3.15 inches long by 2.59 wide by 1.96 tall. Owners on 22 to 26 foot center consoles fit it under the console fine. On larger boats with heavy cable runs, plan the space around your lug clearance.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Egis Mobile Electric","offers":[{"title":"Default Title","offer_id":45057590362205,"sku":"2008381","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_8228e43e-6f54-4fbd-906c-1a1561f71e6c.jpg?v=1789491033","url":"https:\/\/nvnmarine.com\/products\/egis-xd-flex-l-lithium-battery-acr-500a-8610-1300","provider":"NVN Marine","version":"1.0","type":"link"}