Epoch Batteries

Epoch 4-Bank 12V Marine Battery Charger, 10A Per Bank (40A), Onboard LiFePO4/AGM, IP67

🚤 4 Batteries, 1 Onboard Charger|🔋 10A Per Bank, 40A Total|🔧 Lithium, AGM or Lead-Acid Per Bank|💧 IP67 Epoxy-Filled

Regular price: Price: $399.00
Regular price: List Price:
Sale price: Price: $399.00
Unit price: per

In Stock – Ready to Ship

Free Shipping – Lower 48

Authorized Dealer – Full manufacturer warranty

Pay Over Time – Shop Pay Installments

Ships From US Warehouses

Product variants

Quantity

🚤4 Batteries, 1 ChargerBass boat ready
🔋10A Per Bank40A total
🔧Mode Per BankLiFePO4, AGM, lead-acid
💧IP67 Epoxy-FilledOnboard mounting
🇺🇸Free ShippingContiguous 48 states
📞Real Human SupportWiring questions

Epoch 4-Bank 12V Marine Charger: four independent 12V/10A charging banks in one onboard unit. 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.

4Independent banks

10APer bank

40ATotal

IP67Epoxy-filled

Specs from Epoch Batteries' product page and manual.

🔍 Will It Work on My Boat?

3 × 12V trolling + 12V cranking
Four 12V batteries
Mixed lithium & AGM
Bass & fishing boats

📏 Quick check before you order:

Every bank charges one 12V battery. Don't connect a bank across a native 24V, 36V or 48V battery.
Charging a series string in place? Check the charger manual and your battery maker's instructions before leaving the jumpers connected.
You can mount it on a rigid surface with more than 30mm of clearance, near a grounded 120V outlet.

Have a single 36V battery instead? The Epoch 12V & 36V onboard charger is the better match.

Why This Charger

⚡

True 10A Per Bank

Each battery gets its own 10A channel instead of splitting one small output four ways.

⚖️

Keeps Series Banks Even

Charging each 12V battery individually helps keep a 24V, 36V or 48V string balanced.

🔧

Mix Battery Types

Run lithium trolling batteries and an AGM cranking battery, each on its own setting.

🔋

BMS Wake-Up

Wakes a compatible lithium battery that's gone into low-voltage protection.

💧

Marine-Tough

Epoxy-filled IP67 enclosure, aluminum cooling and a waterproof fan.

🛡️

Built-In Protection

Short-circuit, reverse-connection, overcharge, overtemperature and no-load protection.

📦 What's in the Box

🔌1 × Epoch 4-bank onboard chargerWith integrated grounded AC cord
🔴4 pairs of pre-wired leadsM8 ring terminals

Not included: batteries, M6 mounting screws, DC fusing and battery disconnects.

📋 Specifications

Input & Outputs
AC input	105–125VAC, 60Hz (not a 240V charger)
Outputs	4 × 12V / 10A (40A total)
Battery modes	LiFePO4, lead-acid or AGM, set per bank
Connections	Pre-wired M8 ring terminals
Replacement fuses	15A per bank
Build & Mounting
Protection rating	IP67, epoxy-filled
Working temperature	-4°F to 104°F (-20°C to 40°C)
Dimensions	About 11.18 × 9.65 × 3.90 in (284 × 245 × 99 mm)
Mounting	6.5mm holes, M6 screws; more than 30mm clearance
Warranty	2-year limited (Epoch)
Model / SKU	CHG-4BAY-12V10A

📄 Manuals & Downloads

📘 Epoch onboard charger manual (PDF) ↗

❓ Common Questions

How long does charging take?

Roughly divide each battery's amp-hours by 10A. A 100Ah battery needs about 10 hours, plus extra time as charging tapers.

Can I use two banks on one battery for 20A?

No. Epoch says to connect each bank to one battery only.

Can I charge an AGM cranking battery and three lithium trolling batteries?

Yes, as long as each is 12V and each bank is set to match its battery.

Can I charge a frozen lithium battery?

No. Don't charge LiFePO4 below 32°F unless the battery is self-heating or its manufacturer allows it.

Questions? Ask Us First.

Tell us your boat and batteries, and we'll confirm the right charger before you order.

📞 Call 833-664-7433 📧 Email Us

Shipping cost	Free standard and freight shipping on eligible orders. No shipping or handling fees at checkout.
Where we ship	48 contiguous U.S. states, to a physical street address
Where we don't ship	Alaska, Hawaii, U.S. territories, international addresses, PO Boxes, APO/FPO/DPO military addresses
Order cutoff	4:00 PM Eastern, Monday–Friday. Later orders start processing the next business day.
Parcel delivery	About 3–7 business days total
Freight delivery	About 5–18 business days total (large batteries, kits and palletized items)
Pre-orders	Ship on the timeline shown on the product page
Tracking	Emailed when your order ships. Allow 24–48 hours for updates.
Damage or missing package	Damage: tell us within 48 hours of delivery. Missing "delivered" package: tell us within 7 days.

	Parcel (UPS, FedEx, USPS)	Freight (truck, usually on a pallet)
Handling time	1–2 business days	2–3 business days
Transit time	2–5 business days	3–15 business days
Total estimate	3–7 business days	About 5–18 business days
Delivery	Left at your door per carrier practice	Carrier may call to schedule a delivery appointment

Return window	30 days from delivery to request a return RUiXU products: 10 days from delivery
Item condition	Unused, uninstalled, complete, in the original packaging
Change-of-mind restocking fee	Up to 20% of the item price
Damaged, defective or wrong item sent	No restocking fee. We pay return shipping.
Return shipping (change of mind)	Paid by the customer
Refund method	Original payment method
Refund timing	Processed within 7 days of receiving your return. Your bank usually posts it within 5–10 business days.
Exchanges	Damaged or defective items only
Not returnable	Installed or used batteries, special-order items, opened media and mapping cards

Epoch 4-Bank 12V Marine Battery Charger, 10A Per Bank (40A), Onboard LiFePO4/AGM, IP67

Epoch 4-Bank 12V Marine Battery Charger, 10A Per Bank (40A), Onboard LiFePO4/AGM, IP67

🔍 Will It Work on My Boat?