Built Diypow tough, this 12 volt lithium battery packs a big punch. Using lithium iron phosphate (LiFePO4) technology, this battery delivers twice the power, half the weight, and four times the life compared to sealed lead-acid batteries - providing excellent lifetime value. 400 amp-hour capacity provides all-day power for high-amperage trolling motors or long drives in motorhomes. Ideal for deep cycle applications such as trolling motors, solar storage, or boating where large amounts of power are required over long periods of time. Same performance as our legendary 50 amp battery, but with 80% more capacity. Want to know more about how to use a 12V lithium battery? Please click here.
Longer Battery Life
Our 400 Ah 12 V LiFePO4 Deep Cycle battery has a life expectancy of 4000 cycles with a 200 Amp Continuous current, 200 Amp Surge Current (30 seconds), and ½ second surge for higher loads.
Reliable BMS System
The advanced BMS utilizing the software controller intelligently monitors the battery's operating conditions and oversees its safe operations. Continuously monitors conditions, redistributes energy resources in no time flat, and sends alerts in the event of a problem.
Auto-balancing Function
Due to the upgraded auto-balancing function, you can combine batteries in parallel more safely. We recommend connecting the batteries with appropriate cables to achieve optimal effect. Please note that do not connect batteries in series, and the maximum number that can connect in parallel is 8.
Bluetooth Monitors Battery（Optional）
Bluetooth 5.0 is designed to reduce the energy consumption of Bluetooth peripherals. It is faster and operates over longer distances than older versions. You can easily monitor the status of your battery more accurately and conveniently in real-time.
Low-Temperature Self-Heating Function
The intelligent self-heating function will start operating automatically once the battery’s core temperature drops below 41°F (5°C), effortlessly keeping your battery charged in cold environments. Plus, this function is powered by the Charger/Controller's current instead of the battery itself.
Support 4 Parallel 4 Series
Connecting battery cells gains higher voltages or achieves improved current loading.
Lighter Weight
The battery case is made of high-quality ABS material with good sealing performance and solid construction. It weighs about half as much as a lead-acid battery of the same capacity. In usage scenarios, such as RV, it can lead to more free space.
Maintenance free
Lithium-ion batteries last two to four times longer than lead-acid batteries. Frequently having to maintain your lead-acid batteries can be time-consuming and costly. However, Diypow lithium-ion batteries are virtually maintenance-free and do not require frequent watering, equalization charging, or cleaning.
10 Years Warranty
Diypow LiFePO4 battery has obtained CE, RoHS, PSE, and WEEE certifications. All lithium iron phosphate batteries come with a 10-year conditional warranty covering defects in materials and workmanship starting from the date of purchase. And the battery charger comes with 90 days warranty.
Wide Applications for Home & Outdoors
Diypow 400Ah 12V lithium battery could connect max 4 parallel to build a 48V(51.2V) 400Ah battery system, which could support 5.120KW max. load power, 5120KWh max. Energy. So our lifepo4 battery 12v 400Ah is perfect for wide applications, such as home backup power, RV, Solar, Marine, trolling motor, off-grid system, etc.
NOTE
Our 12V 400Ah batteries have a maximum charge current of 14.6V and a discharge cut-off voltage of 10.5.
The Maximum Batteries in Serial is 4 to get higher voltage to 24V, 36V, 48V. Maximum Batteries in Parallel is 10.
Your 12V 400Ah battery can be fully charged with a standard lead-acid charger that reaches 14.4-14.6 volts.
Battery chargers with voltages below 13.6 volts will only charge the battery to 50% of its capacity or less.
If you have any questions regarding this product, please drop us a line or email at info@diypow.com for troubleshooting assistance. Our one-on-one customer service will get back to you within 24 hours.
Diypow Support OEM Customized
We have strong supply chain resources to provide you with customized services for your batteries. Including the color of the battery casing, logo customization, and Bluetooth software customization. If you want to know more about customization x information, please drop us a line or email at info@diypow.com for resource assistance.
We do 100% testing of all Diypow batteries before shipping to you, with grade-A cells and high-quality materials at radically prices than comparable retails.
229 Core Technologies Ensure High Quality
With 13 years of experience in lithium technology, we guarantee high-quality products through our 229 core technologies.
Lifetime Technical Consult Service
Diypow provides 10-year warranty for batteries (2-year for chargers) and lifetime consultation support, we hope you can feel easy and enjoyable when you use the battery.
We Love to Help
Our Team injects passion, integrity, respect, and professionalism into our LiFePO4 batteries and business, if you have any questions, please feel free to contact us, we love to help.
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More practical than a AGM lead battery for me. Much lighter (30 lbs). Can be discharged 100 % , compared to 50% on an Lead acid - so really equivalent to 200Amp-Hr (and then only 1/4 weight!).
The vendor delivered the product sooner than expected and in great condition. Will use the battery to power a 12V 55Ibs trolling motor. So far, I am very happy with the product.
EDIT: Tonight I cooked my dinner and used the oven for an hour and twenty minutes while I was watching TV with my mini PC on for streaming. This battery had more than enough juice to do all that with power left to spare.
I also have a 55 Quart 12V dual zone refrigerator and freezer connected and it runs 24 Hours a day.
This battery is incredibly powerful. It doubled my capacity and is half the weight. I also purchased the Diypow charger and am able to top it off in a very short time. I mainly purchased the setup for cooking while I'm on the road and I can use my 3-In-1 Galanz for about 40 minutes or so before I have to give it a little juice. My old setup used 4, 100 deep cycle batteries and didn't hold a candle to this Lifpo4 setup. I can definitely see myself getting a couple of these for our off-grid camp next spring. If you're in doubt, take the risk and go for it. You won't be disappointed. Almost forgot to mention that their customer service is outstanding. I did have several questions before I placed my order and they responded very quickly. I've been using this for about a month. Simply Great!
Only use these batteries if you know what your doing!
The Battery is rated at 50AH and on first discharge pulled 51AH down to 10.6 volts. Your getting the full rated capacity.
Its very light compared to the 45AH Lead Acid battery it is replacing.
No fumes or acid to deal with since this battery is inside the vehicle with people(trunk fender well to be exact)
LiFePo4 chemistry is a direct 12v Pb replacement.
Battery arrived early and after testing it and hooking it up, everything looks good. The seller emailed me after delivery to see if I had any concerns which was nice.
