{"product_id":"epoch-12v-300ah-3-84kwh-pro-series-lifepo4-cranking-deep-cycle-lithium-battery-dual-purpose","title":"EPOCH 12V 300Ah (3.84kWh) Pro Series - LiFePO4 Cranking \u0026 Deep Cycle Lithium Battery (Dual Purpose)","description":"\u003ch2\u003e12.8V 300Ah LiFePO4 Battery with Heat, Bluetooth, CANBUS, and Smart BMS\u003c\/h2\u003e\n\u003cp\u003eWhen your power system has real work to do, you need a battery that can deliver more than just decent numbers on paper. You need strong capacity, dependable output, cold-weather charging capability, and built-in protection that helps your system stay stable when conditions are less than perfect. This \u003cstrong\u003e12.8V 300Ah LiFePO4 battery\u003c\/strong\u003e is built for exactly that.\u003c\/p\u003e\n\u003cp\u003eDesigned for \u003cstrong\u003emarine, RV, off-grid, and industrial power systems\u003c\/strong\u003e, this battery combines \u003cstrong\u003ehigh-capacity lithium iron phosphate chemistry\u003c\/strong\u003e, \u003cstrong\u003e300Ah of storage\u003c\/strong\u003e, \u003cstrong\u003eBluetooth monitoring\u003c\/strong\u003e, \u003cstrong\u003eCANBUS communication\u003c\/strong\u003e, and \u003cstrong\u003einternal heating\u003c\/strong\u003e into one rugged, maintenance-free package. The result is a serious energy storage solution for people who need long runtime, strong current delivery, and day-in, day-out reliability.\u003c\/p\u003e\n\u003cp\u003eWith approximately \u003cstrong\u003e3.84kWh of stored energy\u003c\/strong\u003e, this battery gives you the kind of usable power that makes a real difference in the field. Whether you are running critical loads on an off-grid setup, extending your time off shore, powering an RV without constant generator noise, or building a scalable battery bank for demanding equipment, this unit is designed to help you do it with less hassle and more confidence.\u003c\/p\u003e\n\u003ch3\u003eSerious capacity for serious runtime\u003c\/h3\u003e\n\u003cp\u003eA 300Ah battery is not for light-duty use. It is for people who are tired of coming up short on runtime and tired of building systems around compromises.\u003c\/p\u003e\n\u003cp\u003eThis battery delivers \u003cstrong\u003e12.8V output and 300Ah capacity\u003c\/strong\u003e, making it a strong fit for applications where dependable energy storage matters. It supports up to \u003cstrong\u003e300A continuous discharge\u003c\/strong\u003e and \u003cstrong\u003e300A continuous charge current\u003c\/strong\u003e, with a \u003cstrong\u003epeak discharge capability of 1,000A for 5 seconds\u003c\/strong\u003e. That means it can support high-demand loads and handle heavy bursts of power when your system needs it most.\u003c\/p\u003e\n\u003cp\u003eFor RV owners, that can mean longer time off-grid with fewer charging interruptions. For marine users, it means reliable house power with the strength to support demanding onboard systems. For off-grid users, it means a battery that can carry meaningful daily loads instead of just covering the basics.\u003c\/p\u003e\n\u003ch3\u003eStable LiFePO4 performance you can trust\u003c\/h3\u003e\n\u003cp\u003eLithium iron phosphate has become the go-to chemistry for high-quality energy storage for a reason. It offers strong cycle life, stable voltage, dependable thermal performance, and lower maintenance than older battery technologies.\u003c\/p\u003e\n\u003cp\u003eThis battery is built with \u003cstrong\u003eLiFePO4 chemistry\u003c\/strong\u003e to provide consistent power delivery across a wide range of applications. It is designed for people who want a battery that feels dependable in real use, not one that constantly needs attention, equalizing, watering, or workarounds.\u003c\/p\u003e\n\u003cp\u003eIf you are upgrading from lead-acid, this is the kind of change you notice fast. Better usable capacity. Better charge efficiency. Less maintenance. Less voltage sag. More confidence when your system is actually being used hard.\u003c\/p\u003e\n\u003ch3\u003eBuilt-in Smart BMS protection\u003c\/h3\u003e\n\u003cp\u003eA battery is only as trustworthy as the protection system behind it. This model includes an integrated \u003cstrong\u003eBattery Management System (BMS)\u003c\/strong\u003e designed to help protect against \u003cstrong\u003eovercurrent, short circuits, and temperature extremes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThat matters because real systems are not always operated under perfect conditions. Loads spike. Temperatures change. Mistakes happen. A smart BMS helps protect the battery and supports more stable operation over the long term.\u003c\/p\u003e\n\u003cp\u003eThis battery also includes \u003cstrong\u003ehigh and low temperature disconnect functionality\u003c\/strong\u003e, adding another layer of protection for applications that see changing weather, varying use patterns, or tough working environments.\u003c\/p\u003e\n\u003ch3\u003eInternal heating for cold-weather charging\u003c\/h3\u003e\n\u003cp\u003eCold weather can create real problems for battery charging, especially in cabins, garages, marine installs, work trailers, and RVs used year-round. This battery addresses that with \u003cstrong\u003einternal heating\u003c\/strong\u003e, allowing it to charge in low-temperature conditions where many batteries would struggle or require additional intervention.\u003c\/p\u003e\n\u003cp\u003eThat means fewer seasonal limitations and a more practical battery for users in northern climates or any setup that may face freezing temperatures. It is a feature that adds real-world usability, not just technical appeal.\u003c\/p\u003e\n\u003cp\u003eFor customers who have learned the hard way that winter can expose every weak link in a power system, built-in heating is a major advantage.\u003c\/p\u003e\n\u003ch3\u003eBluetooth monitoring puts battery data in your pocket\u003c\/h3\u003e\n\u003cp\u003eYou should not have to guess what your battery is doing. Built-in \u003cstrong\u003eBluetooth connectivity\u003c\/strong\u003e allows monitoring and firmware updates through mobile apps, giving you easier access to battery status and system information without extra hardware or unnecessary complication.\u003c\/p\u003e\n\u003cp\u003eThat means quicker status checks, simpler troubleshooting, and a better overall ownership experience. Whether you are managing an off-grid power bank, checking battery condition before a trip, or keeping an eye on system performance while on the water, Bluetooth monitoring makes the system easier to live with.\u003c\/p\u003e\n\u003ch3\u003eCANBUS communication for system integration\u003c\/h3\u003e\n\u003cp\u003eCompatibility matters, especially in more advanced power systems. This battery includes \u003cstrong\u003eCANBUS communication support\u003c\/strong\u003e, helping it integrate with supported energy ecosystems for more coordinated system performance and monitoring.\u003c\/p\u003e\n\u003cp\u003eFor professional installers and experienced DIY users, that can make a big difference in how cleanly a system comes together. Better communication between components often means better visibility, smoother operation, and a more refined overall setup.\u003c\/p\u003e\n\u003ch3\u003eBuilt for harsh environments\u003c\/h3\u003e\n\u003cp\u003eSome batteries are fine on a bench in ideal conditions. This one is built for real environments. With an \u003cstrong\u003eIP67-rated enclosure\u003c\/strong\u003e, it is protected against dust and water ingress, making it a strong choice for marine applications, mobile systems, off-grid installations, and industrial environments where exposure is part of the job.\u003c\/p\u003e\n\u003cp\u003eThat added durability matters when your battery lives somewhere that is not climate-controlled, not spotless, and not forgiving. It is one more reason this battery fits demanding use cases so well.\u003c\/p\u003e\n\u003ch3\u003eExpandable for larger systems\u003c\/h3\u003e\n\u003cp\u003eA good battery should not box you in. This model supports both \u003cstrong\u003eseries and parallel configurations\u003c\/strong\u003e, with support for up to \u003cstrong\u003e4 batteries in series\u003c\/strong\u003e and \u003cstrong\u003e16 batteries in parallel\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThat gives you room to build the system you need now and expand later as your power demands grow. Start with one battery for a compact setup, or build out a larger bank for more storage, more runtime, and broader system capability.\u003c\/p\u003e\n\u003cp\u003eThis kind of flexibility is especially valuable for off-grid users, boat owners, RV builders, and commercial customers who want a battery platform that can grow with their needs instead of forcing a complete redesign down the road.\u003c\/p\u003e\n\u003ch3\u003eLong life with low maintenance\u003c\/h3\u003e\n\u003cp\u003eNobody wants a battery that becomes another maintenance chore. This unit is built for \u003cstrong\u003emaintenance-free operation\u003c\/strong\u003e and long-term service, with the cycle-life advantages that make LiFePO4 such a strong fit for frequent-use applications.\u003c\/p\u003e\n\u003cp\u003eThat means less babysitting, less downtime, and a better return on your investment over the long haul. It is a battery built for people who want to spend more time using their power system and less time worrying about it.\u003c\/p\u003e\n\u003cp\u003eAdd in the \u003cstrong\u003e11-year manufacturer warranty\u003c\/strong\u003e, and you get the kind of long-term backing that helps justify investing in a premium energy storage solution.\u003c\/p\u003e\n\u003ch3\u003eWhy this 300Ah battery stands out\u003c\/h3\u003e\n\u003cp\u003eCustomers shopping in this category are usually not just browsing. They are trying to solve a real problem. They need more runtime. More reliability. Better cold-weather performance. More confidence in the system they are building.\u003c\/p\u003e\n\u003cp\u003eThis battery stands out because it combines the features that matter most in real-world use:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e300Ah capacity\u003c\/strong\u003e for extended runtime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.8V output\u003c\/strong\u003e with stable LiFePO4 performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.84kWh of stored energy\u003c\/strong\u003e in one battery\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e300A continuous charge and discharge current\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1,000A peak discharge for 5 seconds\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart BMS protection\u003c\/strong\u003e against overcurrent, short circuits, and temperature extremes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth connectivity\u003c\/strong\u003e for app-based monitoring and firmware updates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCANBUS communication\u003c\/strong\u003e for system integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal heating\u003c\/strong\u003e for charging in low-temperature conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67-rated enclosure\u003c\/strong\u003e for dust and water protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries and parallel support\u003c\/strong\u003e for scalable system design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance-free operation\u003c\/strong\u003e with long cycle life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11-year manufacturer warranty\u003c\/strong\u003e for long-term peace of mind\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cp\u003eThis battery is a strong fit for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRV house power systems\u003c\/li\u003e\n\u003cli\u003eMarine house banks and onboard energy storage\u003c\/li\u003e\n\u003cli\u003eOff-grid solar battery systems\u003c\/li\u003e\n\u003cli\u003eBackup power setups\u003c\/li\u003e\n\u003cli\u003eIndustrial mobile power applications\u003c\/li\u003e\n\u003cli\u003eWork trucks, trailers, and field equipment\u003c\/li\u003e\n\u003cli\u003eScalable 12V battery banks that need high current capability and cold-weather charging support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003eIf you only need a battery for occasional light use, this may be more battery than you need. But if you are building a serious power system and want meaningful capacity, high current performance, rugged environmental protection, and modern monitoring features, this is the kind of battery worth buying once and buying right.\u003c\/p\u003e\n\u003cp\u003eIt is built for people who rely on their power system, not people who just want a spec sheet to look good.\u003c\/p\u003e\n\u003ch2\u003eProduct Summary\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e12.8V 300Ah LiFePO4 battery\u003c\/strong\u003e is a high-capacity, high-performance energy storage solution built for demanding marine, RV, off-grid, and industrial applications. With \u003cstrong\u003e300Ah capacity\u003c\/strong\u003e, \u003cstrong\u003e3.84kWh of stored energy\u003c\/strong\u003e, \u003cstrong\u003e300A continuous charge and discharge capability\u003c\/strong\u003e, \u003cstrong\u003e1,000A peak discharge\u003c\/strong\u003e, \u003cstrong\u003eBluetooth monitoring\u003c\/strong\u003e, \u003cstrong\u003eCANBUS communication\u003c\/strong\u003e, \u003cstrong\u003einternal heating\u003c\/strong\u003e, and an \u003cstrong\u003eIP67-rated enclosure\u003c\/strong\u003e, it is designed to deliver dependable power in tough real-world conditions. Backed by a \u003cstrong\u003eSmart BMS\u003c\/strong\u003e, long cycle life, scalable series and parallel support, and an \u003cstrong\u003e11-year manufacturer warranty\u003c\/strong\u003e, it offers the kind of reliability and flexibility serious users expect.\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e","brand":"EPOCH BATTERIES","offers":[{"title":"Default Title","offer_id":52715401838914,"sku":"DP12300H","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/0984\/6082\/files\/Untitled_design_27.png?v=1774329577","url":"https:\/\/energysystemscentral.com\/products\/epoch-12v-300ah-3-84kwh-pro-series-lifepo4-cranking-deep-cycle-lithium-battery-dual-purpose","provider":"Energy Systems Central","version":"1.0","type":"link"}