Temgo LiFePO4 12V 300Ah Self-Heating Battery
Temgo 12V 300Ah Self Heating Lithium Battery
Temgo 12V 300Ah Self Heating Lithium Battery
Temgo 12V 300Ah Self Heating Lithium Battery
Bluetooth with APP
Temgo 12V 300Ah Self Heating Lithium Battery
Temgo 12V 300Ah Self Heating Lithium Battery
Temgo 12V 300Ah Self Heating Lithium Battery
Temgo 12V 300Ah Self Heating Lithium Battery

Temgo 12V 300Ah Self Heating Lithium Battery

Regular price
$599.99
Sale price
$599.99
Regular price
$999.99

· Self-Heating Technology: Automatically heats to 41°F (5°C) below 32°F (0°C), ensuring safe charging in Class A, B, C RVs or for yachts, kayak boats in winter.


· 100% Depth of Discharge (DOD): Fully utilizes 300Ah capacity, unlike lead-acid batteries (60% DOD), enabling multi-day off-grid use.


· Over 5000 Charge Cycles: 10 times that of lead-acid batteries (200-500 cycles), reducing replacement costs.


· 200A BMS Safety: Five-fold protection (overcharge, over-discharge, over-current, short circuit, over-heat) ensures safe use for trolling motors or RV inverters.


· Lightweight, only 64.92 LBs: Only one-third the weight of lead-acid batteries, it can be easily installed in RVs, VANs or boats.


· 3840Wh Large Capacity: Powers 100W refrigerator for up to 38.4 hours, perfect for extended RV camping or van run time without recharging.


· IP65 Waterproof and Dustproof: Shock-resistant design ensures reliable operation even on bumpy RV roads or choppy waters.


· Smart Monitoring: Three-page LCD touchscreen and Bluetooth app tracks SOC, DOD, and battery health to optimize energy use for camping or solar systems.

· Self-Heating Technology: Automatically heats to 41°F (5°C) below 32°F (0°C), ensuring safe charging in Class A, B, C RVs or for yachts, kayak boats in winter.


· 100% Depth of Discharge (DOD): Fully utilizes 300Ah capacity, unlike lead-acid batteries (60% DOD), enabling multi-day off-grid use.


· Over 5000 Charge Cycles: 10 times that of lead-acid batteries (200-500 cycles), reducing replacement costs.


· 200A BMS Safety: Five-fold protection (overcharge, over-discharge, over-current, short circuit, over-heat) ensures safe use for trolling motors or RV inverters.


· Lightweight, only 64.92 LBs: Only one-third the weight of lead-acid batteries, it can be easily installed in RVs, VANs or boats.


· 3840Wh Large Capacity: Powers 100W refrigerator for up to 38.4 hours, perfect for extended RV camping or van run time without recharging.


· IP65 Waterproof and Dustproof: Shock-resistant design ensures reliable operation even on bumpy RV roads or choppy waters.


· Smart Monitoring: Three-page LCD touchscreen and Bluetooth app tracks SOC, DOD, and battery health to optimize energy use for camping or solar systems.

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Why Choose Temgo 12V (12.8V) 300Ah Self-Heating Lithium Battery

It uses advanced LiFePO4 technology and intelligent self-heating system to ensure uninterrupted power supply, eliminate charging problems in cold weather, and reduce replacement costs. It is the best battery for deep cycle applications. It is designed for powering various types of vehicles such as A/B/C RVs, travel trailers, off-grid campers and marine trolling motors, ensuring your power continues to run stably.

Buy Temgo 12V 300Ah Self Heating Lithium Battery

Buy Temgo 12V 300Ah Self Heating Lithium Battery

300Ah Large Capacity, Long-lasting Battery

The Temgo 12V (12.8V) 300Ah battery provides 3840Wh of powerful energy to power high-demand devices for a long time. For example, it can run a 100W refrigerator for about 38.4 hours, a 400W breadmaker for 9.6 hours, or a 500W coffee maker for 7.68 hours. Unlike traditional lead-acid batteries whose depth of discharge (DOD) is limited to 60%, this deep-cycle lithium battery provides 100% DOD, allowing you to make full use of every bit of stored energy without compromising battery health.

The high capacity and full DOD allow you to go on multi-day class A, B, C RV or camping trips without charging, giving you freedom and flexibility compared to AGM batteries that usually require frequent charging. It is the best camping battery for outdoor adventures such as RV camping, van living, or marine use that require continuous power.

Temgo 12V 300Ah Self Heating Lithium Battery Provides 3840Wh of energy

Temgo 12V 300Ah Self Heating Lithium Battery Provides 3840Wh of energy

Self-Heating Technology Ensures Cold-Weather Usability

To ensure this high-capacity battery works well in all conditions, Temgo’s self-heating technology addresses the challenges of cold weather.

Its integrated battery management system monitors temperature and automatically activates the heating module when the temperature drops below 32°F (0°C), warming the battery to an optimal 41°F (5°C) for safe charging.

This prevents battery damage caused by charging in freezing temperatures. Some lithium batteries of the same type lose capacity at 0°C (32°F) due to a lack of self-heating technology. A low-temperature cut-off temperature of -4°F ± 7.2°F (-20°C ± 4°C) protects the battery during discharge.

This self-heating lithium battery ensures your RV battery or camping battery always has power during winter camping trips or early season fishing trips.

12V 300Ah lithium battery

12V 300Ah lithium battery

Over 5000 Cycles, Long-Lasting

Temgo batteries use high-quality LiFePO4 cells and have a service life of over 5000 charging cycles, ten times that of traditional lead-acid batteries, which have a cycle life of 200-500. For users who frequently use their RV or solar system, longer battery life means fewer replacement costs.

Its stable discharge curve (tested at 0.2C, 0.5C, 1C and 2C rates) maintains a stable voltage of over 12.5V even under high load, ensuring your equipment runs smoothly.

Superior Performance

Superior Performance

Lightweight Design, Easy to Install, Built-in 200A BMS

Temgo batteries weigh only 64.92 LBs (29.45 kg), about one-third the weight of equivalent lead-acid batteries, simplifying installation in vans, travel trailers, 5th wheel or other RVs.

Its IP65 waterproof and dustproof housing is shock-resistant, and its maintenance-free design can be installed in any direction without the risk of leakage, and also solves the problem of bulky and leaky batteries to ensure continuous and stable operation even on long voyages or bumpy roads.

The 200A BMS of the Temgo battery provides five levels of protection: overcharge, over discharge, over current, short circuit and over temperature.

The battery BMS ensures safe operation under high current demands, such as running a trolling motor or powering an RV inverter, thus avoiding more costly damage.

Unlike batteries with basic BMS, Temgo system actively monitors and protects in real time, eliminating the risk of fire or explosion common in traditional battery technology.

The environmentally friendly thermal management design further improves safety while maintaining performance.

This self-heating lithium battery provides safe and worry-free power, making it the best RV battery for marine or off-grid applications.

Temgo 12V 300Ah Self Heating Lithium Battery with built-in 200A BMS

Temgo 12V 300Ah Self Heating Lithium Battery with built-in 200A BMS

Smart Monitoring with LCD Touchscreen and Bluetooth App

The three-page LCD touchscreen built into Temgo batteries displays real-time data:

Page 1: Current, voltage, temperature, and state of charge (SOC, or remaining power).

Page 2: Charge/discharge control and mode settings for easy operation.

Page 3: Cell voltage monitoring for precise cell balancing.

lithium battery with smart display

lithium battery with smart display

 

Temgo iOS and Android apps provide remote access via Bluetooth, allowing you to track SOC, cycles and battery status anytime, anywhere. This real-time monitoring prevents over-discharging of batteries while camping, or optimizes charging schedules, allowing you to manage power needs at any time.

This transparency makes Temgo self-heating lithium batteries the best camping batteries for optimizing energy utilization in RVs, Vans, or solar energy storage systems.

Built-in 200A BMS and APP Monitoring

Versatile Applications For a Variety Of Outdoor Adventure Travel

RV and Van camping: Power multiple appliances such as refrigerators and inverters at the same time, ensuring comfortable and worry-free off-grid travel for up to a week.

Boat and trolling: Support trolling motors and onboard electronics, with shock-resistant and leak-proof reliability, allowing you to sail without worries.

Solar and wind energy storage: Seamlessly integrate with home or commercial renewable energy systems, support up to 4S4P connection, and easily expand.

Off-grid and emergency backup: Ensure continuous power supply for critical equipment during power outages or remote living, and quickly switch to ensure reliability. It can withstand high loads (up to 2560W continuous power) and remain stable in a wide range of temperatures 32°F - 104°F (0°C to 40°C).

Suitable for various scenarios

Suitable for various scenarios

Why Choose Temgo?

Temgo Batteries is committed to providing customers with efficient and sustainable energy storage. Our expertise ensures that every Temgo battery, such as this self-heating lithium battery, provides reliable power. From RV camping to offshore trolling and solar energy storage, Temgo Batteries is committed to energy independence and focuses on safety, durability and environmental responsibility. We integrate smart BMS and cloud monitoring to help you stay powered for every outdoor travel adventure.

Temgo provides you with highly competitive prices and high-quality RV camping batteries. Order now from our warehouse in California and enjoy fast shipping in 2-7 days and customer support services.

Buy Temgo Best 12V 300Ah Self Heating Lithium Battery

Buy Temgo Best 12V 300Ah Self Heating Lithium Battery

Nominal Voltage12.8V
Capacity300Ah
Energy3840Wh
Charge Voltage14.2V-14.6V
Recommended Charge Current60A (0.2C)
Max. Continuous Charge Current200A
Max. Continuous Discharge Current200A
Max. Load /Inverter Power2560W
Operating Temperature Range (Charge)32°F to 122°F / 0℃ to 50℃
Operating Temperature Range (Discharge)-4°F to 140°F / -20℃ to 60℃
Operating Temperature Range (Storage)14°F to 122°F / -10℃ to 50℃
Low Temp Cut-off Protection (Charge)32°F ± 7.2°F / 0℃ ± 4℃
Self Heating Functionactivates below 0℃, turns off at 5℃
Dimensions20.47*10.59*8.66 In (520*269*220 mm)
Weight64.92 LBs (29.45kg)
TerminalM8
Waterproof ClassIP65

Customer Reviews

Based on 2 reviews
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M
Mike G
Temgot 12V 300Ah

Very impressed, clean and sturdy build. Love the on screen display and the Bluetooth app works great. The bms seems to be balancing the cells between the two batteries very close to each other. Looking forward to dry camping and not worrying about the batteries.

D
Douglas Edmondson
Great batteries

Great for semi-trucks looking to build out EPU setup. Got 2 of these under my bunk with 2 40A DC-DC chargers on them. Easily powers hotel load (TV, modem, Xbox, soundbar, fridge, refrigerator, PC, printer, scanner microwave) as needed thru 3000w pure sine inverter and 12k BTU 12V split AC set to 68-70° for 12-15 hours during rest breaks (even in the daytime in Central FL during summertime. Highly recommend.

How Does The Self-Heating Feature Work In Cold Weather?

The Temgo battery self-heating system automatically activates when the temperature drops below 32°F (0°C), using a small amount of internal power to warm the battery to 41°F (5°C) for safe charging. This prevents damage from cold-weather charging, ensuring reliable performance during winter RV camping or marine use in harsh conditions.

Can This Battery Be Connected In Parallel For a Larger Solar System?

Yes, the Temgo 12V (12.8V) 300Ah battery supports up to 4S4P series-parallel connection, and the smart BMS automatically balances four batteries for seamless expansion for home or commercial off-grid systems.

Is This Battery Safe In a Marine Environment?

Yes. With an IP65 waterproof and dustproof rating and shockproof construction, the Temgo battery is designed for marine applications such as trolling motors or onboard electronics. The 200A BMS prevents overcurrent and short circuits, ensuring safety on long marine trips.

How Does The Bluetooth App Enhance Battery Management?

The Temgo app enables remote monitoring of key indicators such as charge status (remaining capacity) and cycles via Bluetooth. This helps users optimize energy use, plan charging schedules and maintain battery health, especially on long RV or camping trips.

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