Epoch Batteries

Epoch Dual-Output 12V/36V Marine DC-DC Charger, Charge on the Run, 12V/10A + 36V/10A, IP67

🚤 Charge While You Run|🔋 12V/10A + 36V/10A Outputs|🧠 Auto Start & Stop|💧 IP67 Onboard Mounting

Regular price: Price: $249.00
Regular price: List Price:
Sale price: Price: $249.00
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Free Shipping – Lower 48

Authorized Dealer – Full manufacturer warranty

Pay Over Time – Shop Pay Installments

Ships From US Warehouses

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🚤Charge on the RunFrom your outboard's charging system
🔋2 Outputs12V/10A + 36V/10A
🧠Auto Start & StopVoltage-sensing
💧IP67 Epoxy-FilledOnboard mounting
🇺🇸Free ShippingContiguous 48 states
📞Real Human SupportWiring questions

Epoch Dual-Output 12V/36V Marine DC-DC Charger: top up your electronics battery and your 36V trolling-motor battery while the engine runs. It draws from a 12V or 24V starter-battery system and charges two separate batteries through independent outputs: 12V at 10A and 36V at 10A. It starts when the engine raises the starter voltage and stops when it drops, so it won't drain your starting battery while you fish.

12V/10AOutput 1

36V/10AOutput 2

12V or 24VStarter source

~480WCombined output

Specs from Epoch Batteries' product page and manual.

🔍 Will It Work on My Boat?

Bass boats
Tournament fishing
12V starter systems
24V starter systems

📏 Quick check before you order:

Your starter system is 12V or 24V. A 36V battery can't be used as the input.
You have a separate 12V electronics or house battery. Don't connect the 12V output back to the starter battery.
Your outboard's alternator has spare capacity after your boat's other loads. Both outputs together draw a lot from a 12V system.
It's non-isolated: follow Epoch's wiring diagram exactly, with proper fusing and grounding.

Not sure your alternator can handle it? Send us your outboard model and we'll check.

Why This Charger

🎣

More Time on the Water

Adds charge to both auxiliary batteries every time you run between spots.

🧠

Automatic Operation

On a 12V source it starts above 13.8V and stops below 13.0V; on 24V, above 26.8V and below 25.2V.

🔧

Any Battery Type

Each output can be set to LiFePO4, AGM or lead-acid.

⚡

BMS Wake-Up

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

💧

Marine-Tough

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

🛡️

Built-In Protection

Short-circuit, reverse-connection, overcharge and overtemperature protection.

📦 What's in the Box

🔌1 × Epoch dual-output DC-DC chargerModel CHG-DC-12V36V
🔴Pre-wired leadsInput, 12V output and 36V output, with ring terminals

Not included: batteries, DC fuses, disconnects, extra cable and M6 mounting screws. A DC-DC charger adds charge on the run but doesn't replace a full AC charge at the dock, so pair it with an onboard AC charger.

📋 Specifications

Input
Source systems	12V or 24V starter battery (13–30VDC); 36V input not supported
12V source start / stop	Above 13.8V / below 13.0V
24V source start / stop	Above 26.8V / below 25.2V
Outputs
Output 1	12V / 10A (about 120W)
Output 2	36V / 10A (about 360W)
Battery modes	LiFePO4, lead-acid or AGM, set per output
Replacement fuses	15A per output
Isolation	Non-isolated
Build & Mounting
Protection rating	IP67, epoxy-filled
Working temperature	-4°F to 104°F (-20°C to 40°C)
Dimensions	About 9.84 × 5.87 × 2.68 in (250 × 149 × 68 mm)
Mounting	6.5mm holes, M6 screws; more than 30mm clearance
Warranty	2-year limited (Epoch)
Model / SKU	CHG-DC-12V36V

📄 Manuals & Downloads

📘 Epoch DC-DC charger manual (PDF) ↗

❓ Common Questions

Will it drain my starting battery?

It's designed not to. Charging stops when the starter voltage falls below the cutoff, and it hibernates after about 20 idle minutes. A healthy starting battery and properly sized alternator are still required.

Does it replace my onboard AC charger?

No. It adds charge while you run, but a full recharge and balancing still happen at the dock with an AC charger.

Can the 36V output charge three 12V batteries in series?

Epoch publishes the 36V output for one compatible 36V battery. For a three-battery series string, follow your battery maker's balancing instructions.

Is it isolated?

No. It's non-isolated, so wire it exactly to Epoch's diagram, with proper fusing and a planned common ground.

Questions? Ask Us First.

Tell us your boat, outboard and batteries, and we'll confirm the right setup 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 Dual-Output 12V/36V Marine DC-DC Charger, Charge on the Run, 12V/10A + 36V/10A, IP67

Epoch Dual-Output 12V/36V Marine DC-DC Charger, Charge on the Run, 12V/10A + 36V/10A, IP67

🔍 Will It Work on My Boat?