Search  for anything...

12V 300AH Self-Heating LiFePO4 Lithium Battery with Touchable Smart Display & APP Monitoring, Built-in 200A BMS, 2560W Load Power, 5000+ Cycles, Perfect for RV/Camper, Solar, and Off-Grid

  • Based on 80 reviews
Condition: New
Checking for product changes
$779.99 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 8 left in stock, order soon!
Fulfilled by TEMGOT

Arrives Jun 25 – Jun 27
Order within 19 hours and 43 minutes
Available payment plans shown during checkout

Size: 12V 300Ah-App-Screen-Heating


Features

  • Large Capacity & Low Temp Cutoff 12V 300Ah LiFePO4 battery with LiFePO4 cells have high quality and higher energy density with better stability, which makes it possible to ensure long-term recycling. And Low temp cutoff protection prevents battery damage in low-temperature environments.
  • Touch Screen & APP MonitoringOur 12V 300Ah Lithium battery has a more user-friendly design with a touchable smart display that enables you to monitor & control the battery at any time and anywhere. This is undoubtedly a huge innovation that brings great convenience to the user experience. Also features Bluetooth for displaying battery information on your phone. Just download our APP on the phone according to the instructions.
  • 200A BMS & 100% Safety The lithium battery has built-in 200A BMS to protect it from overcharge, over-discharge, over-current, overheating, and short circuits. The stable Lithium Iron Phosphate chemical structure makes the LiFePO4 battery not burn or explode even at high temperatures, short circuits, impacts, and drops. And it does not contain any heavy metals or rare metals and is more environmentally friendly, setting you free from worrying about the battery's uncertain safety factors while using.
  • Automatic Self-Heating12V 300Ah LiFePO4 battery model is equipped with an automatic self-heating function that will be activated by the BMS. When the temperautre below 32F, heating function start. The heating will be stopped when the battery temperature reaches 41F and then the battery will be formally charged. This feature makes it no problem to charge the battery at low temperatures. The battery's working environment is no longer restricted, but more flexible and convenient to use.
  • Various Scenarios & 5-Year Service Life With lithium-ion battery, you're able to safely mount it in any position. This makes Li-ion batteries perfect for marine, RV, campers, travel trailers, and off-grid applications! We are committed to providing you with satisfactory service. TEMGOT provides a five-year service life for all batteries. 24hrs friendly and professional customer supports, any question please feel free to contact us.

Brand: TEMGOT


Size: 12V 300Ah-App-Screen-Heating


Product Dimensions: 10.59"D x 20.47"W x 8.66"H


Terminal: M8


Manufacturer: TEMGOT


Manufacturer: ā€ŽTEMGOT


Brand: ā€ŽTEMGOT


Model: ā€Ž12V300AH-H


Item Weight: ā€Ž64.9 pounds


Product Dimensions: ā€Ž20.47 x 8.66 x 10.59 inches


Country of Origin: ā€ŽChina


Item model number: ā€Ž12V300AH-H


Manufacturer Part Number: ā€Ž12V300AH-H


Amperage: ā€Ž200 Amps


Date First Available: December 5, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 25 – Jun 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Battery works as described by seller. Would recommend to others.
Size: 12V 300Ah-App-Screen
On arrival it took about 9 hours to charge to full capacity. Let settle over night to let battery cells equalize. Impressed on how much power is available in battery. With ability to monitor small fluctuating currents with time to empty easily at hand on batter screen and Bluetooth app. App works acceptablely, with trick of logging out and logging back in to resume operation, app not needed for battery to function. Nice looking unit, looks and feels like high quality and is large and slightly heavy. 300 ah size is packed full of powerful DC. Not a cheap battery, value will be determined at later date. Longevity will be a big factor, so far so good šŸ‘ ... show more
Reviewed in the United States on June 7, 2024 by Lucky33

  • Great battery, great customer service
Size: 12V 100Ah-App-Screen-Heating-Group 24
The battery works as described. The LED screen is really nice to have, and the app works flawlessly to monitor the battery condition and voltage. I had an issue with one of the two batteries that I bought (probably due to water damage) and the seller sent a new battery without any hassle and just asked that I return the old one. Highly recommend. ... show more
Reviewed in the United States on August 9, 2024 by Amazon Customer

  • Great Battery
Size: 12V 460Ah-App-Screen
Ordered 2 of these to replace 6 lead acid golf cart batteries in my RV. 2 of these fit perfectly in the battery tray. Almost 1/2 the weight and 3-4 times the usable battery capacity. The cells in both batteries are pretty nicely matched, 0.003v on one and 0.010 on the other Awesome! The included battery terminal bolts were too too short so be prepared for a run to the hardware store for some longer, metric bolts. The display on the battery is pretty great. Just be careful when ā€œturning off the outputā€ as that will power down the display. You need to press and hold the power button and the display to get it to come back on but it does not work reliably and can be very frustrating to get working again. Bluetooth range is weak but works. You need to be within 10 feet or so to connect. The Bluetooth app is pretty bad. TEMGOT has one in the App Store but it does not work with this battery. You need to use the BMS app with the elephant logo. It’s a flakey app but it works. Overall - I’m happy with the purchase and would do it again. ... show more
Reviewed in the United States on June 28, 2024 by Jon

  • Extremely responsive customer service
Size: 12V 100Ah-App-Screen-Heating-Group 24
I ordered two of the self heating 12.8v/100Ah batteries. One arrived with a display that was not functioning properly. It looked like if you’ve ever plugged in your computer monitor with a VGA cable that had a bent pin. There were things displayed, but it looked funky. I immediately sent photos of the display and the SN to TEMGOT. They were pretty quick to reply. Everything else about the battery was working properly-made power, charged, and the bluetooth was working. They replied, asked for my address, and sent a new one out. (I still hooked the ā€˜bad’ one up and tested it out a bit while commissioning my solar system while the replacement was being shipped-it worked just fine.) They sent a shipping label and I dropped off the battery with the bad display at the UPS. I haven’t fully put the two batteries through their paces, but they seem to function as advertised. My ā€œbigā€ load is a 5,000 BTU AC unit that I have running thought a 1,200VA inverter that will pull about 38A (12v) from the two batteries. Not a huge load, but they seemed to not have any issues with it. I ran the AC for a half hour or so and everything looked good. I have a Victron 500A SmartShunt on the system. It’s impressive how close the voltage and amp load readings are from the shunt and the two batteries. Both systems pretty much match. I don’t think you could get any closer unless you buy really expensive metering equipment. ... show more
Reviewed in the United States on August 3, 2024 by Chris Chris

  • Great performance and value
Size: 12V 100Ah-App-Screen
I used this Temgot battery to build a portable power station to run a microwave, CPAP, TV, radio, lights, and charge phones while camping in our RV. The built in Bluetooth makes monitoring the battery condition easy. As this battery also includes the low temp cutout, I will be using this into the fall without worrying about damaging it. The build quality looks excellent as viewed on teardown video’s I’ve seen. Highly recommended. ... show more
Reviewed in the United States on August 31, 2024 by Jeff L

  • Good batteries
Size: 12V 300Ah-App-Screen
I ordered 2 of the 300ah 12.8v battery. I had a small issue with of them having a bad cell causing a over voltage error while charging. The customer support was fast and very helpful. They replaced the faulty battery very quickly. Both batterys pulled full capacity. I would recommend these batterys. The build quality is good and the price is very fair. ... show more
Reviewed in the United States on September 5, 2024 by Kate Wells

  • Great Display and information
Size: 12V 100Ah-App-Screen
First off, lifepo4 batteries are the way to go, lighter than deep cycle batteries by far AND the depth of discharge for a lifepo4 is 100% ONLY negative to a lifepo4 battery is charging below freezing will damage it. With tge ability to see the state of charge, amount of wattage being drawn in real time. Also the ability to bluetooth and see the info, or on this battery that has a display screen. I purchased one of these Temgot batteries for my trolling motor, I was so impressed that I ordered another one to extend the run time of my solar power stations. ... show more
Reviewed in the United States on August 29, 2024 by Jeremy Hibbard

  • Good Battery Terrible App
Size: 12V 100Ah-App-Screen
UPDATE 6-13-24: After multiple firmware updates the app is now connecting easily and responds quickly to any changes. Have charged and discharged multiple times with no problems. Battery is high quality and functions fine on its own. Really nice color touchscreen on top of case. And a great value too. Except for the app I would give it 5 stars easily. The problem is you can only get the app to connect about 1 in 50 tries. Frustrating as that was one of the key features I liked. There has been 2 software updates in the app in the last week. Maybe they will eventually get it fixed. ... show more
Reviewed in the United States on September 7, 2023 by Dale W

Can't find a product?

Find it on Amazon first, then paste the link below.