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TEMGO 12V 300Ah LiFePO4 Lithium Battery, 3840Wh Deep Cycle Battery with 200A BMS, APP Monitoring & Low-Temp Protection for RV, Marine, Camping & Off-Grid

  • 1. 3840Wh High Capacity & Low-Temp Protection: TEMGO 12V 300Ah LiFePO4 lithium battery delivers 3840Wh of energy for reliable deep-cycle power. Built-in low-temperature cutoff helps protect the battery from charging damage in cold conditions.
  • 2. Smart APP Monitoring: Monitor battery status conveniently from your smartphone via APP, including voltage, current, remaining capacity, and other key battery information. Easily track battery performance without additional monitoring equipment.
  • 3. Built-in 200A BMS Protection: Equipped with a 200A Battery Management System (BMS) to help protect against overcharging, over-discharging, overcurrent, overheating, and short circuits. Stable LiFePO4 chemistry supports dependable performance for everyday power needs.
  • 4. Lightweight Design & Expandable Power: Weighing approximately 54.67 lbs, this 12V 300Ah lithium battery is significantly lighter than comparable lead-acid batteries. Supports series and parallel connections up to 4S4P using matching batteries for expanded energy storage systems.
  • 5. Versatile Applications & Dedicated Support: Suitable for RVs, marine deep-cycle applications, campers, travel trailers, and off-grid power systems. Backed by a 1-year warranty and customer support. Use batteries of the same brand and model for series or parallel configurations.
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TEMGO 12V 300Ah LiFePO4 Lithium Battery 3840Wh Deep Cycle Power

Reliable Lithium Power for RV, Marine, Camping & Off-Grid Applications

The TEMGO 12V 300Ah LiFePO4 Lithium Battery delivers 3840Wh of nominal energy, providing dependable deep-cycle power for RVs, marine applications, campers, travel trailers, and off-grid energy storage systems. Built with LiFePO4 battery technology, it offers a lightweight, low-maintenance alternative to traditional lead-acid batteries.

3840Wh High Capacity & Low-Temperature Protection

With a nominal voltage of 12.8V and a rated capacity of 300Ah, this battery provides 3840Wh of energy for extended power needs.

The built-in low-temperature charging cutoff helps protect the battery against charging under excessively cold conditions.

Smart Bluetooth APP Monitoring

Monitor important battery information conveniently through the Bluetooth APP on your smartphone.

The monitoring system allows you to check battery voltage, current, remaining capacity, and operating status, making it easier to understand battery performance.

Advanced 200A BMS Protection

The integrated 200A Battery Management System (BMS) helps protect against:

  1. Overcharging
  2. Over-discharging
  3. Overcurrent
  4. Overheating
  5. Short circuits

These protective features support stable battery operation and long-term performance.

Lightweight Design & Expandable Power

Weighing approximately 54.67 lbs, the TEMGO 12V 300Ah battery is easier to handle than many comparable lead-acid battery systems.

Designed for compatible series and parallel configurations, it supports expandable energy storage systems when installed according to the manufacturer's specifications.

For multi-battery installations, use matching batteries of the same brand, model, voltage, and capacity.

Versatile Applications

Suitable for a variety of deep-cycle energy storage applications, including:

  1. RVs and Motorhomes
  2. Marine House Power Systems
  3. Camping and Travel Trailers
  4. Solar Energy Storage
  5. Off-Grid Cabins
  6. Backup Power Systems

For marine installations, verify compatibility with your equipment and electrical system before use.

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
  • CONTACT

Return Policies

  • Return for refund within: 30 days
  • Return for replacement within: 90 days
  • This item is covered by TEMGO Return Policy

Manufacturer Contact Info

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The TEMGO 12V 300Ah LiFePO4 deep-cycle battery provides 3840Wh of energy for RVs, marine systems, campers, and off-grid power setups that need high-capacity 12V storage, with app monitoring and low-temperature charging protection.

Recommended For

  • RV and travel-trailer owners running 12V house loads while dry camping, who want a large battery reserve and app-based status checks. Confirm the inverter and charging system are compatible with the battery’s limits.
  • Off-grid and solar-system owners with a 12V battery setup who need substantial stored energy and want to check battery status from a phone.
  • Boat owners with compatible 12V deep-cycle equipment who want a large-capacity battery for extended use between charging opportunities.
  • Owners replacing a lead-acid deep-cycle bank who can accommodate a roughly 65-pound battery and want more stored energy in a single 12V unit.

Spec Summary

AttributeValue
Best ForDeep-cycle power for RV, marine, camping, and off-grid setups, with app monitoring and low-temperature protection
Capacity And Energy3840Wh deep-cycle battery
Protection And Monitoring200A BMS, app monitoring, and low-temperature protection
Dimensions And Weight15.12 × 7.64 × 9.76 in; 65 lb
BrandTEMGO