Temgo 24/7 AI Agent | 08:00–19:00 (ET) Live Chat | Submit a Case Anytime Contact Us

Temgo 12V 300Ah Bluetooth Lithium Battery for Trolling Motors, RVs, Trailers, Campers, Off Grid CA

SKU: TM-12V-300AH-MINI-CA
Regular price $529.99
  • Lightweight Design: Weighing only 54.67 lbs, this 3840Wh battery is 1/3 the weight of same-capacity lead-acid batteries. Equal power at a lighter weight, for easy installation and space-saving layout.
  • High Power Output: Equipped with a 200A BMS, supports continuous 2560W output, powering inverters and various appliances efficiently for daily use.
  • Smart Monitoring: Features a built-in LCD screen and Bluetooth for real-time battery status monitoring, allowing on-site checks via the screen and remote oversight via the Temgo App for ultimate convenience.
  • Rugged Outdoor Protection: IP65 waterproof rating and low-temp cutoff function ensure reliable performance in tough outdoor conditions, protecting the battery from damage.
  • Expandable & Long-Lasting: Supports flexible expansion up to 10 batteries in parallel or 4 in series (Max 4P4S) for scalable energy systems, paired with 5000+ cycles for long-term power builds to meet diverse power demands.
  • Reliable After-Sales Support: Accessible 24/7 online service. Get 5-year technical support whenever you have questions about installation and operation.
Payment methods accepted
  • PayPal
  • Visa
  • Mastercard
  • Maestro
  • American Express
  • Diners Club
  • Discover
  • Apple Pay
  • Google Pay

Services and Benefits

U.S. Warehouse · Free Shipping

Free standard shipping on all orders.

Estimated delivery within 1–6 business days.

Excludes Hawaii (HI), Alaska (AK), and Puerto Rico (PR).

Hassle-Free Returns

Temgo offers a straightforward return process and free replacement support for qualifying product defects, serious shipping damage, or incorrect items.

10-Year Technical Assistance

Get 24/7 online support and 10 years of technical assistance for installation, operation, and troubleshooting, providing reliable support long after your purchase.

200A BMS for Powerful, Reliable Protection

Powerful appliances demand more from a battery. That’s why this TEMGO 12V 300Ah LiFePO4 battery is equipped with a 200A BMS to keep a close eye on battery performance while you use it. The built-in protection system helps guard against overcharging, over-discharging, excessive current, short circuits, high voltage, and high temperatures. So whether you're powering your RV, home backup system, or off-grid setup, you can enjoy dependable energy with added peace of mind.

Temgo 12V 300Ah liFePO4 battery with 200A BMS

Temgo 12V 300Ah lithium battery with 200A BMS

More Usable Power, Less Weight to Carry

Upgrading your battery shouldn’t mean adding more weight. Compared with traditional lead-acid batteries, this TEMGO LiFePO4 battery delivers 300Ah of capacity while weighing about one-third as much. That makes it easier to move, install, and store—especially when space and weight matter in an RV, boat, or off-grid system. With 100% usable capacity, 5,000+ cycles, and up to 10 years of service life, you can get more from your battery over the long run without the bulk of lead-acid.

12 volt 300ah lithium battery comparison with lead-acid battery

Temgo 12 volt 300ah liFePO4 battery comparison with lead-acid battery

Know Your Battery at a Glance

No more guessing when your battery needs a recharge. Connect your phone through Bluetooth by scanning the QR code on the battery, then use the TEMGO App to keep track of important information in real time. You can check the voltage, current, remaining capacity, and temperature from your phone or the built-in touchscreen. It’s an easy way to see what’s happening with your battery and catch unusual conditions before they become a bigger problem.

Temgo 12V 300Ah lithium battery touch LCD screen and app monitoring

Temgo 12V 300Ah lithium battery touch LCD screen and app monitoring

Build Your System as Your Needs Grow

You don’t have to build a large power system all at once. This 12V 300Ah battery supports up to 4S4P configurations, giving you the option to add more batteries when you need more storage or output. Start with what works for you today, then expand your setup for bigger energy demands such as refrigerators, washing machines, air conditioners, and other appliances. It’s a flexible way to build backup or off-grid power at your own pace.

12V 300Ah heated LiFePO4 battery with flexible capacity expansion up to 4S4P

Temgo 12V 300Ah heated LiFePO4 battery with flexible capacity expansion up

Charge Your Way

Whether you’re parked at home, traveling in your RV, or spending time away from the grid, you have more than one way to recharge. This battery can be charged using an AC charger, solar power, or a generator. Use solar energy when conditions are right, or switch to an AC charger or generator when you need a dependable backup. That flexibility makes it easier to keep your power system ready wherever you go.

Temgo 12V 300Ah lithium battery with multiple charge ways

Temgo 12V 300Ah lithium battery with multiple charge ways

One Battery for Everyday Adventures

From weekend trips to backup power at home, this 12V 300Ah / 3840Wh LiFePO4 battery is built to keep your essential equipment running. With up to 2560W of continuous output, it can power everyday loads such as refrigerators, lights, and electronics while providing dependable energy for RVs, boats, fishing trips, solar systems, and off-grid living. When you need reliable power away from the grid, TEMGO gives you the capacity to stay powered for longer.

Temgo 12V 300Ah lithium battery for RVs, marine, home backup and off grid solar storage

Temgo 12V 300Ah lithium battery for RVs, marine, home backup and off grid solar storage

Specifications
    Dimensions & Weight 15.04L*7.59W*9.82H /64.92 lbs
    Capacity 300 Ah
    Nominal Voltage 12.8 V
    Energy 3840 Wh
    Recommended Charge Voltage 14.2V - 14.6V
    Recommended Charge Current 60A (0.2C)
    Battery Management System 200A
    Max. Continuous Load Power 2560W
    Charge Temperature Range 0℃ to 50℃ / 32°F to 122°F
    Discharge Temperature Range -20℃ to 60℃ / -4°F to 140°F
    Storage Temperature Range -10℃ to 50°C / 14°F to 122°F
    Low Temp Cut-off Protection (Charge) 0℃ ± 4℃ / 32°F ± 7.2°F
    Low Temp Cut-off Protection (Discharge) -20℃ ± 4℃ / -4°F ± 7.2°F

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
FAQs

Why choose a 12V 300Ah LiFePO4 battery for long-duration power?

A 12V 300Ah LiFePO4 Battery provides 3,840Wh (3.84kWh) of nominal energy, offering extended runtime for RVs, solar storage, marine equipment, home backup, and off-grid power systems.

How much power can this 12V 300Ah Lithium Battery deliver?

With a 200A BMS, this 12V Lithium Battery supports up to 2,560W of continuous output, making it suitable for higher-power appliances, inverters, and other demanding 12V loads.

What does 12.8V mean on a 12V 300Ah LiFePO4 Battery?

The battery uses four 3.2V LiFePO4 cells connected in series, giving it a 12.8V nominal voltage. It is classified as a 12V battery because it is designed for standard 12V electrical systems.

What charger is compatible with this 300Ah Battery?

Use a charger designed for LiFePO4 batteries. The recommended charging voltage is 14.2–14.6V, with a recommended charging current of 60A (0.2C).

How can I check the battery's condition while it is running?

The built-in LCD touchscreen provides direct access to battery information, while Bluetooth connectivity lets you monitor operating data through the Temgo App, including voltage, current, remaining capacity, and temperature.

Can the 12V 300Ah Lithium Battery handle outdoor environments?

Yes. The battery features an IP65-rated enclosure and vibration-resistant construction, making it suitable for demanding outdoor applications such as RVs, marine use, camping, and off-grid installations.

What temperature range can this 12V Lithium Battery operate in?

The specified discharge temperature range is -20°C to 60°C (-4°F to 140°F), while the charging range is 0°C to 50°C (32°F to 122°F). Low-temperature cutoff protection helps prevent charging or discharging outside the specified limits.

Is a 12V 300Ah Battery suitable for RV and home backup power?

Yes. Its 3.84kWh capacity and 2,560W continuous output make it well suited to RVs, campers, home backup systems, solar energy storage, marine applications, and off-grid power.

How long can this 12V 300Ah LiFePO4 Battery last?

The battery is designed for 5,000+ charge cycles and up to a 10-year service life under suitable operating conditions. Actual lifespan varies with usage, temperature, charging practices, and depth of discharge.

Can I expand my 12V 300Ah battery bank later?

Yes. Multiple 12V 300Ah LiFePO4 Batteries can be connected in series and parallel, with a maximum configuration of 4P4S. This allows you to expand voltage and total energy capacity as your power requirements grow.

Can this 12V 300Ah battery be used with solar panels?

Yes. It can be integrated into compatible solar power systems for energy storage. A suitable LiFePO4-compatible charge controller or charger should be used to manage charging.