{"product_id":"epoch-4-bank-12v-marine-battery-charger-10a-per-bank","title":"Epoch 4-Bank 12V Marine Battery Charger, 10A Per Bank (40A), Onboard LiFePO4\/AGM, IP67","description":"\u003cstyle\u003e.hs-pdp{--g:#008080;--a:#20b1aa;--ink:#16394f;--mut:#617681;--lt:#eaf7fa;--line:#dcecef;--deep:#0b4354;color:var(--ink)!important;font-size:18px;line-height:1.6}.hs-pdp *{box-sizing:border-box}.hs-pdp h2{font-size:1.45em;margin:2rem 0 .8rem;line-height:1.3;color:var(--ink)!important}.hs-pdp h3{font-size:1.08em;margin:0 0 .35rem;color:var(--ink)!important}.hs-pdp p{margin:0 0 .9rem}.hs-pdp .hs-badges{display:grid;grid-template-columns:repeat(3,1fr);gap:.6rem;margin:0 0 1.3rem;padding:0;list-style:none}.hs-pdp .hs-badges li{display:flex;align-items:center;gap:.55rem;background:var(--lt);border:1px solid #cdeaec;border-radius:10px;padding:.6rem .75rem;font-size:.92em;font-weight:600;line-height:1.3}.hs-pdp .hs-badges 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td{padding:.6rem .8rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.hs-pdp tr:last-child th,.hs-pdp tr:last-child td{border-bottom:0}.hs-pdp tbody th{background:#f4fafb;width:42%;font-weight:600}.hs-pdp .hs-group td{background:var(--lt);font-weight:700;color:var(--g)!important;text-transform:uppercase;font-size:.82em;letter-spacing:.04em}.hs-pdp details{border:1px solid var(--line);border-radius:10px;margin:0 0 .5rem}.hs-pdp summary{cursor:pointer;padding:.9rem 2.4rem .9rem 1rem;font-weight:600;list-style:none;position:relative}.hs-pdp summary::-webkit-details-marker{display:none}.hs-pdp summary::after{content:'+';position:absolute;right:1rem;top:50%;transform:translateY(-50%);font-size:1.35em;color:var(--g)}.hs-pdp details[open] summary::after{content:'–'}.hs-pdp details\u003ediv{padding:0 1rem .9rem;color:var(--mut)!important}.hs-pdp .hs-mini{font-size:.87em;color:var(--mut)!important}.hs-pdp a{color:var(--g)!important}.hs-pdp .hs-docs a{display:inline-block;border:1px solid var(--line);border-radius:12px;padding:.9rem 1rem;text-decoration:none;font-weight:600;margin:.2rem .3rem .2rem 0}.hs-pdp .hs-cta{background:var(--deep);border-radius:14px;padding:1.5rem 1.2rem;margin:2rem 0 .5rem;text-align:center}.hs-pdp .hs-cta h2,.hs-pdp .hs-cta p{color:#fff!important;text-align:center;margin:0 0 .6rem}.hs-pdp .hs-cta a{display:inline-block;background:#fff;color:var(--g)!important;text-decoration:none;font-weight:700;border-radius:999px;padding:.7rem 1.4rem;margin:.3rem}@media(max-width:749px){.hs-pdp{font-size:17px;line-height:1.7}.hs-pdp .hs-badges,.hs-pdp .hs-stats{grid-template-columns:repeat(2,1fr)}.hs-pdp .hs-grid,.hs-pdp .hs-kit{grid-template-columns:1fr}.hs-pdp .hs-cta a{display:block}}\u003c\/style\u003e\u003cdiv class=\"hs-pdp\"\u003e\n\u003cul class=\"hs-badges\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-emo\"\u003e🚤\u003c\/span\u003e\u003cspan\u003e4 Batteries, 1 Charger\u003csmall\u003eBass boat ready\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-emo\"\u003e🔋\u003c\/span\u003e\u003cspan\u003e10A Per Bank\u003csmall\u003e40A total\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-emo\"\u003e🔧\u003c\/span\u003e\u003cspan\u003eMode Per Bank\u003csmall\u003eLiFePO4, AGM, lead-acid\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-emo\"\u003e💧\u003c\/span\u003e\u003cspan\u003eIP67 Epoxy-Filled\u003csmall\u003eOnboard mounting\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-emo\"\u003e🇺🇸\u003c\/span\u003e\u003cspan\u003eFree Shipping\u003csmall\u003eContiguous 48 states\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-emo\"\u003e📞\u003c\/span\u003e\u003cspan\u003eReal Human Support\u003csmall\u003eWiring questions\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"hs-lead\"\u003e\u003cstrong\u003eEpoch 4-Bank 12V Marine Charger: four independent 12V\/10A charging banks in one onboard unit.\u003c\/strong\u003e It's built for the classic bass boat setup of three 12V trolling batteries plus a 12V cranking or house battery. Each bank has its own LiFePO4, AGM or lead-acid setting, lithium BMS wake-up and status light, so you charge the whole boat overnight from one AC plug.\u003c\/p\u003e\n\u003cdiv class=\"hs-stats\"\u003e\n\u003cdiv class=\"hs-stat\"\u003e\n\u003cb\u003e4\u003c\/b\u003e\u003cspan\u003eIndependent banks\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-stat\"\u003e\n\u003cb\u003e10A\u003c\/b\u003e\u003cspan\u003ePer bank\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-stat\"\u003e\n\u003cb\u003e40A\u003c\/b\u003e\u003cspan\u003eTotal\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-stat\"\u003e\n\u003cb\u003eIP67\u003c\/b\u003e\u003cspan\u003eEpoxy-filled\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"hs-mini\"\u003eSpecs from Epoch Batteries' product page and manual.\u003c\/p\u003e\n\u003ch2\u003e🔍 Will It Work on My Boat?\u003c\/h2\u003e\n\u003cul class=\"hs-chips\"\u003e\n\u003cli\u003e3 × 12V trolling + 12V cranking\u003c\/li\u003e\n\u003cli\u003eFour 12V batteries\u003c\/li\u003e\n\u003cli\u003eMixed lithium \u0026amp; AGM\u003c\/li\u003e\n\u003cli\u003eBass \u0026amp; fishing boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"hs-callout\"\u003e\n\u003cstrong\u003e📏 Quick check before you order:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eEvery bank charges \u003cstrong\u003eone 12V battery\u003c\/strong\u003e. Don't connect a bank across a native 24V, 36V or 48V battery.\u003c\/li\u003e\n\u003cli\u003eCharging a series string in place? Check the charger manual and your battery maker's instructions before leaving the jumpers connected.\u003c\/li\u003e\n\u003cli\u003eYou can mount it on a rigid surface with \u003cstrong\u003emore than 30mm of clearance\u003c\/strong\u003e, near a grounded 120V outlet.\u003c\/li\u003e\n\u003c\/ul\u003eHave a single 36V battery instead? The \u003cstrong\u003eEpoch 12V \u0026amp; 36V onboard charger\u003c\/strong\u003e is the better match.\u003c\/div\u003e\n\u003ch2\u003eWhy This Charger\u003c\/h2\u003e\n\u003cdiv class=\"hs-grid\"\u003e\n\u003cdiv class=\"hs-card\"\u003e\n\u003cspan class=\"hs-emo\"\u003e⚡\u003c\/span\u003e\u003ch3\u003eTrue 10A Per Bank\u003c\/h3\u003e\n\u003cp\u003eEach battery gets its own 10A channel instead of splitting one small output four ways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-card\"\u003e\n\u003cspan class=\"hs-emo\"\u003e⚖️\u003c\/span\u003e\u003ch3\u003eKeeps Series Banks Even\u003c\/h3\u003e\n\u003cp\u003eCharging each 12V battery individually helps keep a 24V, 36V or 48V string balanced.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-card\"\u003e\n\u003cspan class=\"hs-emo\"\u003e🔧\u003c\/span\u003e\u003ch3\u003eMix Battery Types\u003c\/h3\u003e\n\u003cp\u003eRun lithium trolling batteries and an AGM cranking battery, each on its own setting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-card\"\u003e\n\u003cspan class=\"hs-emo\"\u003e🔋\u003c\/span\u003e\u003ch3\u003eBMS Wake-Up\u003c\/h3\u003e\n\u003cp\u003eWakes a compatible lithium battery that's gone into low-voltage protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-card\"\u003e\n\u003cspan class=\"hs-emo\"\u003e💧\u003c\/span\u003e\u003ch3\u003eMarine-Tough\u003c\/h3\u003e\n\u003cp\u003eEpoxy-filled IP67 enclosure, aluminum cooling and a waterproof fan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hs-card\"\u003e\n\u003cspan class=\"hs-emo\"\u003e🛡️\u003c\/span\u003e\u003ch3\u003eBuilt-In Protection\u003c\/h3\u003e\n\u003cp\u003eShort-circuit, reverse-connection, overcharge, overtemperature and no-load protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📦 What's in the Box\u003c\/h2\u003e\n\u003cul class=\"hs-kit\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-k\"\u003e🔌\u003c\/span\u003e\u003cspan\u003e1 × Epoch 4-bank onboard charger\u003csmall\u003eWith integrated grounded AC cord\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hs-k\"\u003e🔴\u003c\/span\u003e\u003cspan\u003e4 pairs of pre-wired leads\u003csmall\u003eM8 ring terminals\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"hs-callout\"\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e batteries, M6 mounting screws, DC fusing and battery disconnects.\u003c\/div\u003e\n\u003ch2\u003e📋 Specifications\u003c\/h2\u003e\n\u003cdiv class=\"hs-tablewrap\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr class=\"hs-group\"\u003e\u003ctd colspan=\"2\"\u003eInput \u0026amp; Outputs\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAC input\u003c\/th\u003e\n\u003ctd\u003e105–125VAC, 60Hz (not a 240V charger)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e4 × 12V \/ 10A (40A total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery modes\u003c\/th\u003e\n\u003ctd\u003eLiFePO4, lead-acid or AGM, set per bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnections\u003c\/th\u003e\n\u003ctd\u003ePre-wired M8 ring terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReplacement fuses\u003c\/th\u003e\n\u003ctd\u003e15A per bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hs-group\"\u003e\u003ctd colspan=\"2\"\u003eBuild \u0026amp; Mounting\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection rating\u003c\/th\u003e\n\u003ctd\u003eIP67, epoxy-filled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking temperature\u003c\/th\u003e\n\u003ctd\u003e-4°F to 104°F (-20°C to 40°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eAbout 11.18 × 9.65 × 3.90 in (284 × 245 × 99 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003e6.5mm holes, M6 screws; more than 30mm clearance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e2-year limited (Epoch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ SKU\u003c\/th\u003e\n\u003ctd\u003eCHG-4BAY-12V10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2\u003e📄 Manuals \u0026amp; Downloads\u003c\/h2\u003e\n\u003cdiv class=\"hs-docs\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0251\/0484\/2798\/files\/CHG-2BAY-12V36V_CHG-4BAY-12V10A_Manual_6.18_1_-1.pdf?v=1787915894\" target=\"_blank\" rel=\"noopener\"\u003e📘 Epoch onboard charger manual (PDF) ↗\u003c\/a\u003e\u003c\/div\u003e\n\u003ch2\u003e❓ Common Questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow long does charging take?\u003c\/summary\u003e\u003cdiv\u003eRoughly divide each battery's amp-hours by 10A. A 100Ah battery needs about 10 hours, plus extra time as charging tapers.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use two banks on one battery for 20A?\u003c\/summary\u003e\u003cdiv\u003eNo. Epoch says to connect each bank to one battery only.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I charge an AGM cranking battery and three lithium trolling batteries?\u003c\/summary\u003e\u003cdiv\u003eYes, as long as each is 12V and each bank is set to match its battery.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I charge a frozen lithium battery?\u003c\/summary\u003e\u003cdiv\u003eNo. Don't charge LiFePO4 below 32°F unless the battery is self-heating or its manufacturer allows it.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdiv class=\"hs-cta\"\u003e\n\u003ch2\u003eQuestions? Ask Us First.\u003c\/h2\u003e\n\u003cp\u003eTell us your boat and batteries, and we'll confirm the right charger before you order.\u003c\/p\u003e\n\u003ca href=\"tel:+18336647433\"\u003e📞 Call 833-664-7433\u003c\/a\u003e\u003ca href=\"mailto:info@homesteadsupplyonline.com\"\u003e📧 Email Us\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Epoch Batteries","offers":[{"title":"Default Title","offer_id":54110104256707,"sku":"CHG-4BAY-12V10A","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1800\/9539\/files\/ChatGPT_Image_Aug_12_2026_05_17_44_PM.png?v=1793296040","url":"https:\/\/www.homesteadsupplyonline.com\/products\/epoch-4-bank-12v-marine-battery-charger-10a-per-bank","provider":"Homestead Supply Online","version":"1.0","type":"link"}