Epoch Batteries

Epoch Batteries 12V 105Ah Heated LiFePO4 Deep Cycle Battery

🔥 Self-Heating|📱 Bluetooth + Built-In Shunt|🔋 Group 24, 1.34 kWh|🛡️ 11-Year Battery Warranty

Regular price: Price: $549.00
Regular price: List Price:
Sale price: Price: $549.00
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Manufacturer Warranty

Capacity 12V 105Ah

Product variants

Quantity

🇺🇸Free ShippingContiguous 48 states
🛡️11-Year Battery WarrantyBacked by Epoch
🔥Self-HeatingCharges in the cold
📱Bluetooth + Built-In ShuntNo extra monitor needed
🔋Group 24 Drop-In5Ah more than 100Ah
📞Real Human SupportSizing & setup questions

Heated, Bluetooth-connected lithium in a standard Group 24 size. The Epoch 12V 105Ah Essential Series stores 1.34kWh, 5Ah more than a typical 100Ah Group 24 battery, in the same footprint. An internal heater lets it charge in freezing weather, and a built-in shunt sends accurate state of charge, current and temperature to your phone. It's a true drop-in upgrade for RVs, boats, trolling motors and solar.

1.34 kWhStored energy

4,000+Rated cycles

22.1 lbTotal weight

105AContinuous output

🔧 Will It Fit & Work for You?

A BCI Group 24 battery, so it drops into most Group 24 trays. Popular uses include:

RV & camper house power
Vans & overlanding
Marine house power
Trolling motors
Ice fishing & sonar
Off-grid solar & cabins
Home backup, CPAP & small appliances

📏 Quick check before you order:

Your tray fits 10.25" L × 6.75" W × 9" H (Group 24), with room for cables and the hold-down.
Your load stays within 105A continuous (52.5A recommended for long, steady loads), with up to 200A for 10-second surges.
Your charger has a LiFePO4 profile and supplies at least 0.5A so the heater can run in the cold.
It's a deep-cycle battery, not for starting engines.
Add a properly sized fuse or breaker near the positive terminal.

Not sure? Tell us what you're powering and we'll help you size it before you buy.

Why It's Worth the Upgrade

🔥

Charges in the Cold

Below freezing, charging current powers internal heating pads (never your stored energy). Charging starts automatically once the cells reach 5°C (41°F).

📱

Bluetooth With a Built-In Shunt

The free Epoch Li-Ion app shows state of charge, voltage, current and temperature, with no separate battery monitor to buy or wire.

➕

5Ah More, Same Size

105Ah and 1.34kWh in a standard Group 24 case, so you get extra runtime without a bigger tray.

🧠

Smart BMS Protection

Overcharge, over-discharge, over-current, short circuit and temperature protection, plus low-voltage disconnect at 10.0V.

🔁

Expandable

Up to 4 in series for 24V, 36V or 48V trolling motors, or up to 4 in parallel for 420Ah, using matched batteries.

🧰

Zero Maintenance

No watering, no acid, no terminal cleaning. Rated for 4,000+ cycles with 80% capacity remaining.

📦 What's in the Box

12V 105Ah Heated LiFePO4 Battery (12105A-H)Bluetooth, built-in shunt & internal heater

Sold separately: LiFePO4 charger (the Epoch 12V 15A lithium charger is a good match), Group 24 battery tray, DC-to-DC charger for alternator charging, fuse or DC-rated breaker and cables.

Lithium vs. a Lead-Acid Battery

	Epoch 12V 105Ah Heated	Typical Lead-Acid
Weight	22.1 lb	Often 2–3× heavier
Usable capacity	Most of the rated 105Ah	About half, to protect battery life
Cold-weather charging	Built-in heater	Slow & inefficient
Maintenance	None	Watering & cleaning
Phone monitoring	Yes, with built-in shunt	No
Warranty	11-year limited	Usually 1–2 years

🔌 Charging Made Simple

🔋

Recommended: 50A

Charge at 50A for best results (100A max). Settings for other chargers are in the spec table.

🚫

No Lead-Acid Modes

Use a charger with a LiFePO4 profile. Turn off equalization, desulfation and "repair" modes, and set temperature compensation to 0.

🔥

Cold-Weather Charging

Below 0°C (32°F), a charger supplying at least 0.5A powers the heater. Charging resumes automatically at 5°C (41°F).

🚐

Charging From an Alternator?

Epoch recommends a DC-to-DC charger programmed for LiFePO4 between your alternator and the battery.

🛡️ 11-Year Limited Warranty

Years 1–3Free replacement of a defective battery

Years 4–1140% off MSRP on a replacement battery

📋 Full Specifications

Electrical
Chemistry	LiFePO4, prismatic cells
Configuration	4S1P
Nominal Voltage	12.8V
Capacity / Energy	105Ah / 1,344Wh
Operating Voltage	10.0V – 14.6V
Continuous Discharge	105A (52.5A recommended for sustained loads)
Peak Discharge	200A (up to 10 sec)
Max Charge Current	100A
Recommended Charge Current	50A
Low-Voltage Disconnect	10.0V (reconnects at 12.0V)
Cycle Life	4,000+ cycles (≥80% capacity remaining)
Self-Discharge	≤3% per month
Series / Parallel	Up to 4 in series / up to 4 in parallel (matched batteries)
Physical
BCI Group Size	Group 24
Dimensions (L × W × H)	10.25" × 6.75" × 9" (260 × 171 × 229 mm)
Weight	22.1 lb (about 10 kg)
Case	ABS/PC blend, UL94-V0 flame rating
Ingress Rating	IP54 (dust protected, splash resistant, not submersible)
Terminals	M8 female, 8–12 Nm (71–106 in-lb)
Bluetooth	Yes, Epoch Li-Ion app with built-in shunt
Temperature
Charge	-20°C to 55°C (-4°F to 131°F) with internal heating
Discharge	-20°C to 60°C (-4°F to 140°F)
Storage (recommended)	0°C to 35°C (32°F to 95°F)
Internal Heater	Yes, powered by charge current (0.5A minimum)
Charger Settings
Bulk / Absorption	14.2V – 14.4V
Absorption End	C/20 (5.25A) or 15 minutes
Float	Disabled (preferred) or 13.3V – 13.6V
Re-Bulk	13.2V
Max Charge Voltage	14.6V
Temp Compensation / Equalization	Off / Off
Certifications
Cells	UL 1642, IEC 62619:2022
Product	CE, RoHS
Transport	UN 38.3
Ordering
SKU	12105A-H

📄 Manuals & Downloads

📋Quick Spec SheetKey specs on one pagePDF ↗ 📊Technical Data SheetFull electrical, charging & BMS detailsPDF ↗ 📘User & Installation ManualWiring, charger setup, storage & carePDF ↗ ⚠️Safety Data Sheet (SDS)LiFePO4 handling, storage & transportPDF ↗ 🛡️Register Your WarrantyRegister with Epoch within 90 days of purchaseEPOCH ↗ 📜Full Warranty Terms11-year limited warranty detailsEPOCH ↗

📱 Get the free Epoch Li-Ion app: App Store · Google Play

❓ Common Questions

Is it a direct replacement for my RV or boat battery?

For most Group 24 trays, yes. Check the tray size, cable clearance, terminal orientation and charger settings first.

Do I need a separate battery monitor?

No. The built-in shunt and Bluetooth send state of charge, voltage, current and temperature to the free Epoch Li-Ion app. The security PIN is on the battery lid.

How does the heater work?

Below 0°C (32°F) the BMS blocks charging. A charger supplying at least 0.5A powers the heating pads using incoming charge current, not stored energy. Charging resumes at 5°C (41°F).

Why 105Ah instead of 100Ah?

You get 5Ah more (1.34kWh total) in the same Group 24 size, which means more runtime from the same tray.

Can I build a 24V or 36V trolling motor system?

Yes. Up to 4 in series (24V, 36V or 48V) or up to 4 in parallel, using matched batteries.

Can I charge it from my alternator?

Epoch strongly recommends a DC-to-DC charger with a LiFePO4 profile between the alternator and battery.

Is it waterproof?

No. It's IP54: dust protected and splash resistant. Don't install it where water collects.

How should I store it?

Charge to about 50%, disconnect loads and chargers, store between 0°C and 35°C (32°F to 95°F), and check it at least every 3 months.

Questions About Your Setup? Ask Us First.

Tell us what you're powering (RV, boat, motor or solar) and we'll help you size the battery and charger.

📞 Call 833-664-7433 📧 Email Us

🔋

LiFePO4 Chemistry

Lithium iron phosphate cells, one of the most stable lithium chemistries available

🧠

Built-In Smart BMS

Guards against overcharge, over-discharge, over-current, short circuit & temperature extremes

🧰

Zero Maintenance

No watering, no acid, no terminal cleaning

🛡️

Backed by Epoch

Manufacturer warranty, plus real help from our team at 833-664-7433

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 Batteries 12V 105Ah Heated LiFePO4 Deep Cycle Battery

Epoch Batteries 12V 105Ah Heated LiFePO4 Deep Cycle Battery

🔧 Will It Fit & Work for You?