• Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
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  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Humsienk 12V 300Ah LiFePO4 Battery
  • Local Free & Fast Delivery
  • 24/7 Online Support
  • 30-Day Return & Refund
  • 5-Year Free Wararnty
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  • Low-temp Cutoff

Humsienk 12V 300Ah LiFePO4 Battery

$389.99 USD$499.99 USDSave $110.00 USD (22%)

20.51 x 9.37 x 8.57 in | 61.73 lbs

  • 3X Energy Density of Lead-Acid: One 12V 300Ah replaces three 12V 100Ah – more power, less space.
  • 6,000+ Cycles at 80% DOD: Lasts 4–5× longer than lead-acid – maintenance-free for 10+ years.
  • 200A Continuous BMS Output: Runs trolling motors, RV AC, fridge, and inverter simultaneously – no voltage sag.
  • IP65 Waterproof & Wide Temperature Range: Dust-tight, water-resistant – operates from -20°C to 60°C (-4°F to 140°F).
  • 200A BMS Safety Protection: Over-charge, over-discharge, short circuit, and thermal protection.
  • 5-Hour Fast Charging: Compatible with solar, generator, or shore power.
  • Reinforced Overcurrent Protection: Advanced BMS with overcurrent cutoff – safe for inverters, AC, and motors. No sudden shutdowns during surges.

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$389.99 USD$499.99 USD

Special Add-Ons

Humsienk 12V 60A LiFePO4 Battery Charger

Humsienk 12V 60A AC-DC LiFePO4 Battery Charger

$199.99 USD $299.99 USD
  • Local Free & Fast Delivery
  • 24/7 Online Support
  • 30-Day Return & Refund
  • 5-Year Free Wararnty
Payment Method
  • paypal
  • visa
  • afterpay
  • klarna
  • google pay
  • apple pay
  • shopify pay
  • master
  • american express
  • unionpay
Humsienk 12V 300Ah LiFePO4 Battery
Humsienk 12V 300Ah LiFePO4 Battery
$389.99 USD
$499.99 USD

Humsienk 12V 300Ah LiFePO4 Battery – 3840Wh, 200A BMS

This 3840Wh lithium battery features a 200A intelligent BMS for full protection. With 6,000+ deep cycles and a maintenance‑free design, it’s the ideal drop‑in upgrade for RVs, boats, cabins, and off‑grid systems.

Humsienk 12V 300Ah LiFePO4 battery 3840Wh 200A BMS RV off-grid

6‑Layer BMS Protection – 200A Continuous, 300A Peak

The built‑in 200A BMS safeguards against over‑current, over‑charge, over‑discharge, low/high temperature, and short circuits. Delivers 200A continuous (300A peak) for high‑power devices while extending battery life – reliable protection for all your adventures.

12V 300Ah BMS 200A protection over-current over-charge low-temp short circuit

3840Wh Powers Your RV Appliances All Day

Estimated daily consumption: Air Conditioner (60%), Refrigerator (18%), Coffee Maker + Hair Dryer (10%), Lights + Pump + TV (11%), Microwave (1%). This battery handles your essential loads comfortably, giving you true energy independence on the road. (Approximate data for reference.)

12V 300Ah RV battery energy consumption air conditioner refrigerator daily load 3840Wh

Charge in ~5 Hours – AC, Solar, Alternator, or Generator

Reach full charge in about 5 hours with a 60A charger from shore power, solar panels (600W + MPPT), vehicle alternator + DC‑DC charger, or a portable generator. Flexible charging ensures you’re never left without power, wherever you are.

12V 300Ah battery charging 60A solar MPPT alternator generator 5 hours

Lightweight, Drop‑in Ready – No Maintenance, Just Power

This maintenance‑free LiFePO4 battery weighs significantly less than lead‑acid, with no watering or leaks. Simply drop it in and power on – perfect for marine, RV, cabin, and off‑grid setups. Rugged and reliable, it’s hassle‑free energy for the long haul.

Humsienk 12V 300Ah lightweight drop-in maintenance-free marine RV cabin off-grid

Mechanical

Shell Type

ABS

Size

521.51×238.01×220.73(mm)/20.53×9.37×8.69(inch)

Weight

28.6kg±3%/63.05lb±3%

Nominal Voltage

12.8V

Nominal Capacity

300Ah

Energy

3840Wh

Electrical Characteristics

Terminal

M8

Cycle Life

6,000@DOD80%

Months Self Discharge

s3%/Month

Efficiency Of Charge

100%@0.2C

Efficiency Of Discharge

96~99%@0.5C

Charge Voltage

14.4V+0.2V

Standard Charge/Discharge

Charge Mode

CC/CV

Charge Recommended Current

60A

Max. Continuous Charge Current

200A

Discharge Recommended Current

150A

Max. Continuous Discharge Current

200A

Discharge Cut-Off Voltage

10V

Charge Temperature

32°F~131°F/0℃C~55°C

Discharge Temperature

-4°F~140°F/-20°C~60°C

Environmental

Storage Temperature

32°F~113°F/0°C~45°C

Ingress Protection Rating

IP65

Package List & Data Sheet

What's in the Box

12V 300Ah

×1

User Manual

×1

M8 Terninal Bolts

×2

Plastic Insulation Caps

×2

Product Documents

12V 300Ah

User Manual & Specification Sheet · English PDFs

Which Battery Fits Your Setup?

Product

12V 300Ah

Bluetooth

12V 314Ah

Mini

12V 320Ah

Bluetooth

12V 640Ah

Bluetooth

Capacity3.84kWh4.01kWh4.09kWh8.19kWh
Dimensions20.51 x 9.37 x 8.57 in15.08 x 7.60 x 8.66 in20.55 x 9.37 x 8.58 in24.92 x 9.53 x 8.58 in
Weight61.73 lbs58.42 lbs59.75 lbs109.02 lbs
BMS Current200A200A250A250A
Bluetooth
Max Power2560W2560W3200W3200W
IP RatingIP65IP65IP65IP65
Best ApplicationRV, Trolling Motor, Home StorageRV, Trolling Motor, Home StorageRV, Trolling Motor, Home StorageRV, Trolling Motor, Home Storage
Price (USD)$389.99 USD$459.99 USD$499.99 USD$869.99 USD

Customers praised this LiFePO4 battery for its exceptional capacity and reliability. Many highlighted the "Bluetooth app" for real-time monitoring, though some noted connectivity issues. The 200A BMS received acclaim for safety features. Shoppers loved the "great price" and performance with solar setups. Some struggled with app setup and password resets, but overall satisfaction was high.

  • 5 stars: 252 (73%)
  • 4 stars: 81 (23%)
  • 3 stars: 10 (3%)
  • 2 stars: 2 (1%)
  • 1 star: 1 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
A
Anonymous (United States)
Todo

Todo bien

B
Bruce Feldbruegge (Canada)

I have only had the battery for a few weeks but it exceeds my expectations so far ... it arrived in perfect shape - bluetooth is cool -price is good ! It is so much better and lighter then the the old battery . Planning for another one next year.

R
R.P. (United States)
Very Happy

Received my 12v 160Ah Plus battery, impressed before I opened the box, well labeled and very sturdy 2" foam top and bottom, no wonder it arrived safely. Ready to charge and install, manual and terminal hardware right there. Now the reason I chose the 160 Ah Plus having limited space two 160's gives 320 Ah that's like over 3 100 Ah battery's and at a good price makes the Humsienk 12V 160Ah Plus the clear winner, space, power, cost so yes I am going to buy another!!! THANKS!!!!!!!!

J
JOHN ALFORD (Canada)

THESE ARE EXCELLENT BATTERIES. I'VE BEEN USING THEM FOR ABOUT A YEAR NOW SUPPLYING NIGHTTIME POWER, CHARGED BY MY SOLAR PANELS DURING THE DAY. NO PROBLEMS.

E
Ed Colvin (United States)
Excellent Battery — Exceeded Rated Capacity I recently purchased a Humsienk 12V 314Ah LiFePO4

Excellent Battery — Exceeded Rated Capacity

I recently purchased a Humsienk 12V 314Ah LiFePO4 battery, and I have been extremely impressed with both the battery and the service.

The battery arrived in excellent condition only 3 days after I placed the order. It measured 13.1 volts right out of the box. I fully charged it and then performed a capacity test. To my surprise, it delivered 328Ah—14Ah more than its advertised 314Ah capacity. That’s approximately 105% of the rated capacity, which is excellent performance.

This isn’t my first experience with Humsienk. This is the fifth Humsienk battery I own, so my recommendation is based on repeated experience with their products, not just one purchase. I’ve continued buying them because I’ve been very satisfied with the performance and value.

Communication with the seller was also excellent, and the exceptionally fast delivery was a big plus.

Based on my experience with five Humsienk batteries, I can highly recommend this battery and this company. I thoroughly test the batteries I purchase rather than simply relying on the specifications, and this 314Ah battery exceeded its advertised capacity.

I would gladly purchase another one and put it through the same full charge and capacity testing.

5 out of 5 stars. Highly recommended

J
Jeff Hamilton (Canada)

Great battery! Used for my trolling motor.

A
Anonymous (Canada)

Love it exceeded my expectations.

C
Customer (United States)

i installed it in my house to provide me with power during emergencies. we started having alot of power outtage here in the last few years and we cannot rely on the grid anymore. something is going on and we must prepare before it is too late.

this battery has TONS of electricity stored inside. i can run my water pump, lights, computers, fans... everything! its totally silent and doesnt emit gasses like lead acid batteries. also the energy density is incredible and the price is very low. when the grid goes down i can continue to live like before. it totally reduced my stress and i sleep way better now knowing that i have not only a reserve of food, but electricity.

W
William Blyleven (Canada)

Used for my truck camper ( @gordie_the_galloper ) running a 60L fridge, inverter, Starlink, string lights and misc items (Laptop, phone, tablets et al)

It gives me 4 days of use down to 20%

Paired with a 20A ac charger for filling when back home. I now have a 150W fold-out panel with a PWM charger for the next trip to see if I can keep the battery topped up.

Diesel heater, toaster and maybe an air frier next

So far so good

Only disappointment is the Bluetooth only connects within 2m of the truck

C
Chris Buckner (United States)
These batteries ARE GREAT!

These batteries ARE GREAT! I purchased 2 of them, ran them in parallel in our camper. We went on a 4 day trip with 6 people in our camper. We out the batteries to the test. Water pump, all the lights you make it we ran it. At the end of our trip the batteries were at 95%! Holy crap for real! The Bluetooth feature is amazing as well. I checked the batteries often just cause and man am I impressed! Great batteries and features!

A
Alaa Alasady (United States)
Can you please call me at [****] I need

Can you please call me at [****] I need to buy a charger for the batteries I bought from your company what kind of charger I have to buy and is there’s a charger works on 12 volt

N
Nick Negau (Canada)
B
Brett Mabee (Canada)

Finally got a chance to use our rv and came away happy with the battery we install this year. It is and does what was promised Bluetooth work great and does everything I need. I received and charged the battery a month before using it and it stayed fully charged.

M
Michelle Annett (Canada)

Replaced 2 deep cycle batteries with this LifePo4 324MH bluetooth battery for our GeoPro trailer and it worked really great. We did buy a battery charger to get it to 100% as it came in at 57%. Once fully charged it powered our RV for the long weekend no problem and full recharged with our solar panel each day. It also worked well to charge our laptop in the RV with the inverter and didn't deplete the battery very much. The app works well. The only downside is you need to be near the battery for the blue tooth connection to the app to work and it seems to disconnect easily. Not a huge deal. Overall pleased. Will see how it works for longer boondocks stays.

J
Jacques Lamoureux (Canada)

Great product and full of energy
I am happy with this performance
Great fishing day
Jacques Lamoureux

J
JOEL CHAPPELL (United States)
Humsienk is a very good company

Humsienk is a very good company. I found the quality of these batteries to be very good. I reached out to them for some information and received answers to all of my questions. This is a company that can be trusted.

J
Joseph Ziegler
Awesome batteries

I’ve had 2 of these running for a couple of months on a12 volt solar system and they work great from 24/7 refrigerator to coffee pot vacuum cleaner and any other appliance we’ve plugged in

N
Nan-Chuan Yen (Canada)

I can't tell you how happy I am with these batteries. They came well balanced out of the box, but I still connected them in parallel for a couple days to get the Voltage as tight and consistent as possible before installation. I used them in a small ebike car and they work perfectly. Humsienk is creating high quality batteries at an affordable price - and I hear their customer service is good too. Humsienk is seriously positioning themselves as a leader in the industry. If I need batteries again, I'll definitely be buying from them.

G
Gary Rummel (United States)
New purchase

New purchase, so I cannot rate longevity. It’s exactly as advertised. Fast delivery. Really like the Bluetooth app.

L
Lynn

What are the dimensions of the 300ah and the 640ah lithium batteries

Humsienk

The dimensions of the 12V 640Ah are 24.92 x 9.53 x 8.58 in, and the dimensions of the 12V 300Ah are 20.51 x 9.37 x 8.57 in.