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Heated, Bluetooth, Victron-ready lithium
Epoch builds LiFePO4 batteries with the features cold-climate and Victron-system owners actually want: self-heating before charge, Bluetooth monitoring in your pocket, and comms-ready models that talk to your system. Here's the lineup, from budget drop-ins to 460Ah house banks.
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| Series | Character | Best for | From |
|---|---|---|---|
| Original Series | Heated + Bluetooth, proven value | Straightforward 12V upgrades on a budget | $141.55 |
| Essential Series | Heated + Bluetooth essentials | Clean, modern drop-ins for boats, RVs and cabins | $299 |
| Eco Series | 12V value line | Cost-conscious builds that still want LiFePO4 | $325 |
| Pro Series (dual-purpose) | Cranking + house in one, Victron-ready | Boats that start an engine and run a house bank | |
| V2 Elite Series | Big-capacity flagship, Victron-ready | Serious house banks — liveaboards, vans, off-grid | $2,199 |
| V2-T Elite (Class-T) | Elite with built-in Class-T fuse | High-capacity banks that want main-fuse protection built in | $2,399 |
| 48V Server Rack | Rack-mount 48V, self-heating | Off-grid and high-voltage house systems | $1,299 |
Round out the install with Epoch's IP67 chargers, the Victron comms cable for Pro Series, and Elite mounting hardware. Comparing brands? See Victron's battery line and the full lithium collection.
How to choose, in three questions
Which series, what capacity, and how it plugs into a Victron system.
Which series fits?
Original, Essential, and Eco cover everyday 12V upgrades at friendly prices. Step up to the Elite line when the bank is the backbone of a liveaboard, van, or cabin — more capacity per box and Victron-ready comms. The Pro Series is the interesting one: dual-purpose batteries that crank an engine and carry the house.
How much capacity?
Add up your daily amp-hours, then size the bank so a normal day uses roughly half of it — lithium is happy cycling deep, but headroom keeps you flexible on cloudy weeks and long weekends. One 460Ah Elite can replace a whole tray of lead-acid; we'll run your loads with you if you share them.
Running Victron gear?
Victron-ready Epoch models close the loop with your system so charging follows what the battery reports — the Pro Series uses a simple comms cable. If you're pairing with a Cerbo GX, MultiPlus, or MPPT, tell us your lineup and we'll confirm the clean way to wire it.
Why buy from Blue Marine
Authorized Epoch dealer
Warranty and setup support handled by us, not a ticket queue.
ABYC-certified advisors
We size capacity, charging, and fusing around your actual loads.
Free US shipping over $49
Fast shipping from Seattle; lithium ships with carrier paperwork handled.
Real people, real boats
Call (800) 628-6306 Mon–Sat.
Building a bank around Epoch?
Tell us your loads, your charge sources, and whether Victron gear is in the picture — we'll spec the series, capacity, and comms setup that fits, and flag the fusing your install needs.
Epoch battery FAQ
What does 'heated' actually mean?
Lithium cells shouldn't accept charge below freezing. Heated Epoch batteries sense the cold and warm their cells before allowing charge, automatically — no separate heat pad, no babysitting. If your boat, van, or cabin sees winter, it's the feature that keeps solar and alternator charging useful year-round.
Are Epoch batteries drop-in replacements?
Yes — the BMS lives inside, so there's no external module to wire. Swap, connect, and confirm your chargers use a lithium profile. Alternator charging still deserves a look (a DC-DC charger protects it); that's a quick question for our advisors.
How does the Victron integration work?
Victron-ready models can communicate with a Victron system so charging follows real battery data instead of guesswork — the Pro Series connects with a dedicated comms cable. Tell us your GX device and chargers and we'll confirm the exact hookup for your model.
What's the Class-T fuse in the V2-T Elite?
A Class-T is the fast, high-interrupt fuse that big lithium banks want on the main positive — it can safely break the enormous current a short circuit across a large bank can deliver. The V2-T builds it in, which means one less critical component to source, mount, and wire.
Can I monitor them from my phone?
Yes — Bluetooth monitoring is standard across the lineup. State of charge, voltage, current, and cell health are in the app, so you know before you untie the lines, not after the fridge goes warm.