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renogy|SKU:HEATING

Renogy 12V 300Ah LiFePO4 Battery with Self-Heating for Cold-Climate Off-Grid Systems

All-Weather LiFePO4 Power That Doesn't Quit

59% more usable capacity — Outperforms same-sized 200Ah LiFePO4 packs
EV-grade cell chemistry — Almost 10x the lifespan of lead-acid
200W self-heating system — Charges in cold weather 2X faster
Off-grid proven reliability — Braces for storms, hurricanes, and wildfires
  • FREE System Design Consultation -- Our engineers size your system for your actual consumption
  • FREE Shipping -- Ships free — no surprise freight charges
  • Compatibility Guarantee -- Pre-vetted to work with your off-grid setup

$929.95

Out of stock

In the box

  • Renogy 12V 300Ah Core Series LiFePO4 Battery w/Self-Heating
Renogy 12V 300Ah Core Series Deep Cycle Lithium Iron Phosphate Battery w/Self-Heating
Renogy 12V 300Ah LiFePO4 Battery with Self-Heating for Cold-Climate Off-Grid Systems
$929.95

All-Weather LiFePO4 Power That Doesn't Quit

The Renogy 12V 300Ah Core Series LiFePO4 battery with self-heating is built-to-survive cold-weather off-grid setups where standard lithium cells shut down. EV-grade cells deliver consistent power nearly ten times longer than lead-acid, while the integrated self-heating function keeps the battery charging in sub-freezing conditions. With 59% more capacity than a same-sized 200Ah LiFePO4, this field-tested unit gives you the reserve to handle storms, hurricanes, and extended grid outages without compromise.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
Self-Heating Function
EV-Grade LiFePO4 Cells
59% More vs 200Ah
10x Lead-Acid Lifespan
300Ah
Usable Capacity
12V
Nominal Voltage
59%
More Power vs 200Ah
Stop Replacing Dead Lead-Acid Banks

Stop Replacing Dead Lead-Acid Banks

Lead-acid batteries are the off-grid equivalent of a grid-tied system that goes dark during outages — they promise power but fail when conditions get real. The Renogy 12V 300Ah Core uses EV-grade LiFePO4 cells that last almost 10 times longer than lead-acid, eliminating the cycle of premature replacements that drain your affordable. At Off Grid Vault, we only carry batteries we would install on our own cabins. This 300Ah unit is pre-vetted for real-world off-grid performance — not shelf life in a climate-controlled warehouse. With 59% more capacity than a same-sized 200Ah LiFePO4 pack, you get genuine grid-independent power that holds up under actual demand, not just datasheet conditions.

Charge Through Freezing Conditions

Charge Through Freezing Conditions

Standard LiFePO4 batteries refuse to charge below 32°F — a critical failure point for anyone living off-grid through a Midwestern winter or Pacific Northwest cold snap. The Renogy Core solves this with 200W self-heating elements, the highest in the industry, warming cells 2X faster than competing heated batteries. When the temperature drops, the battery automatically activates heating using your charge source, so you wake up to a fully charged bank instead of a dead one. This is off-grid proven cold-weather resilience: no manual intervention, no external heating pads, no guesswork. Just ensure a stable charge current greater than 10A per battery to initiate the self-heating cycle.

Extra Reserve for the Moments That Matter

Extra Reserve for the Moments That Matter

The difference between 200Ah and 300Ah is not incremental — it is the difference between making it through a three-day blackout and falling short on night two. This battery delivers 59% more stored energy in the same footprint, giving you the reserve capacity to brace for unexpected storms, hurricanes, and wildfires without rationing power. Pair multiple units to scale your bank for whole-home backup, a remote cabin, or an RV build that does not compromise. The Renogy Core is field-tested for the scenarios our buyers actually face — not hypothetical best-case conditions. More capacity means fewer charge cycles per day, which extends cell life and keeps your system running longer between replacements.

Compatibility Check

Verify your system matches these requirements before ordering.

  • 12V battery bank architecture
  • LiFePO4-compatible charge controller and inverter
  • System supports self-heating battery function

Where This Battery Belongs

Designed for setups that can't afford cold-weather downtime.

Off-Grid Cabins & Homesteads
Emergency Backup Systems
Solar RV & Van Builds

Full specifications

At a glance

Dimensions
See product page
Power
12V
Warranty
See product page
Compliance
See product page
Full specifications12 data points across 4 categories

Dimensions

LengthSee product page
WidthSee product page
HeightSee product page
WeightSee product page

Power & Performance

ChemistryLithium Iron Phosphate (LiFePO4)
Nominal Voltage12V
Capacity300Ah
Cell GradeEV-grade
Self-HeatingYes

Materials

CasingSee product page

Compliance & Warranty

WarrantySee product page
CertificationsSee product page

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. This battery is no exception.

30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free ShippingShips free to your door — no minimums, no surprise freight charges on heavy battery orders.
Free System Design ConsultationOur engineers will size your battery bank for your actual consumption — no guesswork, no incompatible components.
★★★★★
“I swapped out six AGM batteries for two of these 300Ah Core units in my cabin bank. The self-heating is the real deal — last January hit -8°F and the batteries charged without me doing anything. My old lead-acid bank would have been bricks in those conditions. Way more capacity than I need on a normal day, but that is exactly the point when a storm rolls through and the sun disappears for three days straight.”
F
First L.Flagstaff, AZ

 

Core 12V 300Ah LiFePO4 Battery for All-Weather Living with self-heating.
 
 
300Ah Core vs. Lead-acid
Upgrade to lithium for the next-level performance
300Ah Core vs. Other LiFePO4
Unparalleled performance for demanding energy needs
More Power, More Possibilities
Renogy 12V 300Ah Core delivers 59% more power than a same-sized 200Ah LiFePO4 Battery. Get the extra capacity to brace for unexpected storms, hurricanes, wildfires, and other challenges whenever you need it.
Powerful to the Core
Offering you consistent power that is almost 10 times longer than an average lead-acid battery, the Renogy 12V 300Ah Core LiFePO4 Battery features EV-grade battery cells to ensure lasting performance.
Extra Warmth. Extended Runtime
With the industry’s highest 200W heating elements, this 12V 300Ah LiFePO4 Battery can heat up 2X faster than other heated batteries on the market. Please ensure a stable charge current greater than 10A for each battery for initiating the self-heating.
Protections Against Bumps
We know that it always takes a bumpy ride before arriving at your dream destination. With that in mind, the battery comes with a rugged structural design to protect components from bumping up and down on the road.
 
Connect in Parallel
Connect in Series
Connect in Series-Parallel
Power Your Journey Longer
Whether you’re a weekend adventurer or a full-time nomad, Renogy Core 300Ah LiFePO4 batteries make power easy to access on the road. Connect 4 batteries in parallel for up to 5.5 days of power for essential RV appliances, providing days of off-grid power for added comfort.
 
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Dive into topics you like to stay updated with the latest tech & hacks.
Battery Compare
Sealed Lead Acid vs. Lithium Iron Phosphate
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Battery Connection
How Should I Connect Batteries Together?
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Battery Upgrade
How to Replace Batteries for My RV?
Learn more
 
 
 
Dimensional Reference Guide
Before installing the battery, please note that you need to leave 1.97-3.94 in (50-100 mm) for the top of the battery; the side with busbars needs to be left at least 7.87 in (200 mm).
 
 
 
What’s in the box
 
 
The Renogy Difference
Going solar is not that complicated. Renogy is here to help you build your system faster so you can roam further.
10+ Years’ Expertise in Off-Grid Power Solutions
Local Warehouses in the US
5-Year Warranty
24-Hour Prompt Response

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Frequently Asked Questions

Lead-acid batteries typically last 300-500 cycles before significant degradation. This 300Ah LiFePO4 delivers almost 10 times that cycle life per the manufacturer's spec. You would replace a lead-acid bank multiple times before this Renogy Core reaches the end of its rated lifespan. For a homestead or cabin running daily, that means years of reliable power without recurring replacement cost. At $250 per month in utility savings from going off-grid, a complete system investment recovers itself well within the battery's operational life. This is not an expense — it is a long-term infrastructure decision.
Yes. Off Grid Vault is an authorized dealer for Renogy and every brand we carry. That means warranty claims go through us directly — not through a ticket queue on a marketplace platform. If something fails under the manufacturer's warranty, you contact us and we handle it. That is the difference between buying from a curated off-grid specialist and pulling a battery off a generic listing where the seller disappears after shipment. We stand behind every product because our reputation depends on it.
This is a 12V LiFePO4 battery, so it is compatible with any 12V-system inverter and charge controller that supports lithium chemistry. The critical requirement is ensuring your charge controller has a lithium battery profile. For self-heating activation, you need a stable charge current greater than 10A per battery. If you are unsure about your specific setup, take advantage of our free system design consultation. Tell us your components and we will confirm compatibility before you buy — no guesswork, no mismatched parts.
The 200W heating elements activate automatically when the battery's internal temperature drops below the charging threshold. Because these are the industry's highest-rated heating elements at 200W, this battery heats up 2X faster than other heated LiFePO4 batteries on the market. The exact time depends on ambient temperature and insulation conditions, but the 2X speed advantage means less time waiting and more time with a charged bank. You just need to ensure your charge source provides a stable current greater than 10A to initiate the heating cycle.
The Renogy 12V 300Ah Core uses EV-grade battery cells for lasting performance and 200W heating elements — the highest in the industry. It heats 2X faster than competing heated batteries, which matters when you are waking up to sub-freezing temperatures and need your bank ready by morning. Combined with 59% more capacity than a same-sized 200Ah LiFePO4 pack and almost 10 times the cycle life of lead-acid, this battery is built-to-survive the conditions that knock lesser units offline. Off Grid Vault carries it because it meets the standard we would set for our own cabins.
Yes — you can wire multiple Renogy 12V 300Ah Core batteries in parallel to increase your amp-hour capacity, or in series to build a 24V or 48V bank for larger inverter systems. This is how most homesteaders and cabin builders scale their storage to match their daily kWh consumption. Keep in mind that each battery requires a stable charge current greater than 10A for self-heating, so your charge controller must be sized accordingly when scaling up. For help designing a multi-battery bank, use our free system design consultation.
At $929, you can finance this battery through Affirm with payments as low as $77 per month on approved credit. That makes it straightforward to add capacity to your system now without a large upfront outlay. Klarna is also available with 4 interest-free payments. Shipping is free on all orders, so the price you see is the price you pay — no freight surprises. Combine financing with the long-term savings of lithium over lead-acid replacement cycles, and the math works in your favor.
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The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. This battery is no exception.

30-Day Performance Guarantee If it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free Shipping Ships free to your door — no minimums, no surprise freight charges on heavy battery orders.
Free System Design Consultation Our engineers will size your battery bank for your actual consumption — no guesswork, no incompatible components.

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About renogy Solar Panels

renogy is a trusted manufacturer of premium solar panels. OffGridVault is an authorized dealer offering the full renogy lineup with free delivery, price match guarantee, and expert support.

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