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Qidianfy 12V 300Ah LiFePO4 Lithium Battery

Name: Qidianfy 12V 300Ah LiFePO4 Lithium Battery
Brand: Qidianfy
SKU: BA12V300
Price: 349.00 USD
Availability: InStock

$349.00 USD $399.00

Shipping calculated at checkout.

Qidianfy Battery Factory Direct to Customer

3840Wh Capacity: Reliable power for RVs, solar systems, marine, camping, and home backup applications.
200A Smart BMS Protection: Advanced protection against overcharge, over-discharge, overheating, overcurrent, and short circuits.
EV-Grade LiFePO4 Cells: 4000+ cycles at 100% DOD and up to 10 years of service life.

Expandable to 61.44kWh: Connect up to 16 batteries (4P4S) for large-scale home and off-grid energy storage.
100A Max Charge Current: Supports up to 100A charging for faster recharge times and reduced downtime.
Low-Temperature Protection: Automatically stops charging below 32°F to protect battery performance in cold environments.
Compact Yet Powerful: Only 55.69 lbs while delivering 3840Wh of usable energy.
5-Year Warranty & Certified Safety: Backed by a 5-year warranty and certified to UL, FCC, CE, RoHS, and UN38.3 standards for dependable performance.

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TOP EV-GRADE LiFePO4 CELLS

Built with premium EV-grade LiFePO4 cells, this battery delivers exceptional safety, stability, and longevity. Rated for 4000+ cycles at 100% DOD, it provides reliable power for RVs, marine electronics, off-grid systems, and outdoor adventures.

Low-Temp Protection for Long-Term Reliability

The battery automatically stops charging below 32°F (0°C) and discharging below -4°F (-20°C), then safely resumes charging at 41°F (5°C)—helping protect the battery and extend cycle life.

Lighter, Stronger, More Durable

At only 55.69 lbs, this battery is 57% lighter than a comparable lead-acid battery while delivering 3840Wh of usable energy. With a 10-year lifespan and 4000+ cycles, it provides longer-lasting power with less weight and maintenance.

200A Smart BMS Protection

The battery integrates a self-developed 200A Smart BMS for stronger power delivery, enhanced system protection, and long-term reliability. Equipped with 20+ advanced safety protections against overcharging, over-discharging, overcurrent, short circuits, and extreme temperatures, it ensures safe and dependable performance for RV, solar, marine, and off-grid applications.

Power That Grows With You

Expand from a single battery to a powerful 4P4S energy system as your needs evolve.

Adventure without limits.

Ready when the grid isn't.

Built for bigger projects.

Why Choose Our Batteries?

Certified safety and performance, proven cost savings, 5-year warranty protection, and fast US warehouse shipping with 24/7 support.

SPECS

BATTERY

Cell Type：LiFePO4

Warranty：5 Years

Cycle Life：≥4000 Cycles at 100% DOD

Nominal Voltage：12.8V

Rated Capacity：300Ah

Energy：3840Wh

Max. Expansion：4P4S

Certifications：UN38.3, FCC, CE, RoHS, UL

Bluetooth：/

Self-Heating：/

BMS

BMS：200A

Max. Continuous Output Power：2560W

Max. Continuous Charge Current：100A

Max. Continuous Discharge Current：200A

Peak Discharge Current：240A

CHARGE

Charge Method：CC/CV

Charge Voltage：14.4V ± 0.2V

TEMPERATURE

Charge Temperature：32°F ~ 113°F / 0°C ~ 45°C

Discharge Temperature：14°F ~ 140°F / -10°C ~ 60°C

Storage Temperature：-4°F ~ 113°F / -20°C ~ 45°C

OTHERS

Product Size：L20.55*W9.45*H8.58 in / 52.20*24.00*21.79 cm

Approx. Weight：55.69 lbs / 25.26 kg

Terminals：M8 Brass

Housing Material：ABS

Protection：IP65 / Sealed Waterproof

FAQ

Yes. This battery supports up to 4 in series (2S/3S/4S for 24V, 36V, or 48V systems) or up to 4 in parallel (4P) to expand total capacity to 1200Ah (theoretical maximum). For best performance and safety, please use batteries of the same model, capacity, and state of charge.
Yes, it is compatible with solar charging systems for home backup, RV, van life, camping, and off-grid energy storage.
Yes. The battery has an IP65 waterproof rating and a built-in 200A BMS that protects against overcharge, over-discharge, overcurrent, short circuit, and extreme temperatures. It’s reliable for marine, RV, solar storage, and off-grid use.
The 12V 300Ah LiFePO4 battery delivers 4,000+ cycles at 100% DOD, depending on usage and conditions. This translates to a service life far longer than traditional lead-acid batteries.
With a dedicated 100A fast charger, this battery can be fully charged in approximately 3 hours (from 0% to 100% at room temperature). Actual time may vary slightly based on initial charge level and ambient conditions.
Store the battery at 30%-50% charge in a cool, dry place. We recommend charging it every 6 months when not in use to prevent over-discharge and maintain optimal performance.

5 stars: 23 (82%)
4 stars: 3 (11%)
3 stars: 1 (4%)
2 stars: 0 (0%)
1 star: 1 (4%)

Great product.

Good product. Delivered earlier than expected.

Seller was great to work with

I would highly recommend based on the seller, let's hope the batter stands the tests of time...functioning great as of now.

Great Product

Great quality, easy to set up and install. First off this was well packaged and good documentation.

Wish I would of done it earlier

Wish I would of done it earlier. AGM's are dead to me.

Yes just do it

Very good company- I had an issue with the charger and they replaced it immediately with no hassle. Great customer service.

Great battery
Received the in a secure box. Charged it up to 100% with a lithium charger. It replaced to lead acid batteries in my RV.

It handled charging my 12v fridge overnight no problem used like 3% of the battery. Once I changed my Solar charge controller to charge LifePO4 batteries it had it charged back to 100% in no time.

100% improvement and satisfaction.

For the cost of this vs replacing lead acid batteries, hands down the best. We are 100% pleased.

Powerful and Reliable LiFePO4 Batteries – Excellent Performance for RV and Solar Use

Overall, this is a high-quality product with excellent value for the price. I would definitely recommend these batteries for RV, marine, solar, or off-grid applications.

great product

This is a great product.

HIGH QUALITY

This battery is actually quite good.

Look like a solid product... to be tested

- It is smaller than expected which is good.
- weight for thr 300 AH is manageable, pretty light

Great product! Highly trustworthy seller!

I highly recommend this battery and seller.

Solid build and well worth the money

The overall build quality is premium with firm wiring terminals. It holds charge perfectly when not in use, delivers steady power under frequent load changes. Excellent cost performance, I will purchase again if needed.

Stable backup power for equipment room

Bought multiple units for equipment room standby power. Neat workmanship and thick terminal connectors. Very low self-discharge rate, keeps power well during long standby. Fast switching when power cuts, strong load capacity, ideal for long-term backup use.

Great product very useful

Great product.Thanks.

Ideal for off-grid solar yard system

Matched this battery with my courtyard off-grid solar system. Large storage capacity enough for daily use even on cloudy days. Runs stable with no overheating at all.

Perfect size, 300ah of lithium is a game changer

Wonderful battery, after 2 full days boondocking, battery still at 2/3 charge, before after a day they would be flat. Now with solar can go for 4 to 5 days easy.

Great battery for the price

I really like this battery. This battery is uniquely small with an Amazing capacity. I used battery isolation switch and a fuse for safety. Weight seems to be on par for the rated capacity.

Very good battery!

Excellent battery!

Great battery

Battery been working great so far. Have about 5 cycles so far. Very happy with the purchase.

Big ass battery

So far so good. It fits well, is simply designed and seems to have it's advertised capacity.

Not having to check the batteries for water

Easy install. Works great. Never have to check the batteries again for water

300ah battery

Seems to be a great battery. It took a full charge. It arrived quickly.

Excellent Product and Responsive Customer Service!

The battery arrived fully charged and in pristine condition due to the nice packaging.

Working good so far.

So far so good. It is a world of difference between the weight of the original lead batteries. Seems to hold a charge pretty good.

Light and Powerful

Bought six of these 300AH batteries over the course of 2 weeks from 2/5 through 2/19. Did not have to charge anyone of them as all six were received with a voltage between 13.91 and 13.88 volts. Yes, hard to believe but true AND after having them six weeks, stored, the voltage dropped only between .025/.040 volts over this time with them currently at 13.88/13.84 volts. Using as storage bank for a home DIY emergency solar backup power project.

A great choice for a high AH LIPO

This is an excellent battery for solar setups. Battery case and BMS are robust and well thought out.It's already saved me a bunch on gas and will help me minimize repairs and maintenance due to extended idling. Shipping was fast and the battery was well packaged.

Seller was great to work with

Seller was very responsive after I wasn't seeing a full charge to 300ah and had some odd scratches or abrasions on the surface. Recommended I discharge and charge a couple times before we discussed any returns. After a couple discharges to under 50% and back to 100% it was showing the full 300ah. I was even offered a small refund for the scratches/abrasions, which I didn't take, but was a nice offer from the seller. I would highly recommend based on the seller, let's hope the batter stands the tests of time...functioning great as of now.

Qidianfy 12V 300Ah LiFePO4 Lithium Battery