LOSSIGY 12V 400AH Lifepo4 Deep Cycle Lithium Battery, Built in 250A BMS, 10 Yrs Lifespan, Prefect for Solar System, RV, Best for Replacement Your Olds.
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Availability:
Only 9 left in stock, order soon!
Arrives
Aug 9 – Aug 11
Style: 12V400AH
Features
- Grade A Cells: LOSSIGY lifepo4 lithium batteries are manufactured of auto grade-A cells with higher energy density, more stable performance&greater power.
- Last for 10 Year: LOSSIGY battery provides at least 4000 cycles. The built-in BMS effectively protects the electric core from damage caused by high temperature, low temperature, short circuit, over-current and overload.
- Easy to install: LOSSIGY 12V 400AH lifepo4 battery is easier to install and move compared to traditional series lead-acid batteries.
- Amazing BMS System: LOSSIGY's lifepo4 is a battery management system composed of high-end chips, which allows for automatic balancing within the battery. These batteries can be safely connected in parallel or series to form a larger capacity 48V battery banks.
- LOSSIGY's Commitment: LOSSIGY provides every customer with 90 days of worry free after-sales service and 24-hour online professional technical support. Regardless of any issues you may have, we promise to provide the fastest possible solution
Description
About LOSSIGY Deep Cycle LiFePO4 Battery The completely sealed lithium-ion cells lets you no longer worry about battery leakage. The BMS central system made of high-end chips can constantly monitor the battery status and perfectly protect your battery. The ABS shell made of polymer has strong waterproof and fireproof performance, so that it will not be corroded even in salt environment. You can safely use it in various waters and environments. Product Parameters Can be connected in series/ in parallel(up to 4) Total Capacity: 400Ah Nominal Voltage: 12.8V Charge Voltage Range: 14.2V-14.6V Full Charge Voltage Range: 13.4V-13.8 V BMS: 250A Maximum Continuous Current: 250A Maximum Continuous Load: 3200W Waterproof Grade: IP65 Operating Temperature Range Charge: 32℉--113℉ Discharge: -4℉--140℉ Storage temperature: 10℉-122℉ Charging state: low temperature cut-off is 32 ° F, high temperature cut-off is 113 ° F Discharge state: low temperature cut-off is - 4 ° F, high temperature cut-off is 140 ° F Product size: L 20.5 x W 10.6 x H 8.6 inch Terminals: Removable M8 screw
Brand: LOSSIGY
Size: 12V400AH
Product Dimensions: 10.59"D x 20.47"W x 8.66"H
Number Of Cells: 4
Terminal: Stud Terminal
Automotive Fit Type: Universal Fit
Manufacturer: LOSSIGY
UPC:
Brand: LOSSIGY
Size: 12V400AH
Product Dimensions: 10.59"D x 20.47"W x 8.66"H
Number Of Cells: 4
Terminal: Stud Terminal
Automotive Fit Type: Universal Fit
Manufacturer: LOSSIGY
UPC: 736809107632
Model: life,lifepo4
Item Weight: 95 pounds
Country of Origin: China
Batteries: 1 12V batteries required. (included)
Manufacturer Part Number: 12V400AH
Amperage: 250 Amps
Date First Available: August 31, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Aug 9 – Aug 11
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
I have owned this for 3 years for my travel trailer. It is left in trailer during off season. Detached from trailer but no charger. It only looses 5-10%. It hasn’t given me any problems and is easy to use.
Reviewed in the United States on June 6, 2025 by Jason
Style: 12V100AH
I have several of these and one of them had an issue after 2 years use. I contacted Lossigy and they sent me a replacement within a week.
Reviewed in the United States on June 12, 2025 by MK
Bought one in April 2022 and here's what I like most about the Lossigy LiFePO4 200ah battery: 1. Increased the electrical storage capacity on our RV by over 400%.* 2. 20% lighter than the 50ah wet cell bank it replaced.** 3. Fit perfectly in the battery box that formerly contained 2ea. 6V wet cells wired in series. 4. No problem with operation in temperatures down to 27F.*** 6. Still reliable and showing no signs of deterioration after 14 months of heavy usage. 7. Prompt and helpful responses from seller whenever I've had a question. NOTES: *The battery continues to put out 12 volts or more, even when remaining capacity falls below 15% (as measured by RV's coulometer). My 50ah wet cell bank, by comparison, would often drop below 12V when remaining capacity hit 30%. Useable capacity was therefore about 35ah whereas usable capacity of the 200ah Lossigy LiFePO4 is 170ah+. **Combined weight of the 50ah lead-acid battery bank that was replaced was over 60 lbs, or about 1.2 lbs per rated amp-hour. The Lossigy LiFePO4 200ah battery, by comparison, weighs in at only 48lbs. This equates to about 0.24 lbs per rated amp-hour - effectively less than 1/5th the weight per ah of the wet cell bank. ***We've camped in winter conditions and watched anxiously as temperatures on the surface of the battery hit 27F (as measured by remote sensor). The Lossigy battery never so much as hiccupped (though I wouldn't want to push it much lower than 27F). NOTE: Worth considering with an RV trailer is the fact that standard tow vehicles rarely come equipped with a tow-battery charging system capable of putting out greater than 8 amps. This means 10 hours of driving might put 80 amp-hours back into your trailer's 200ah battery. The solution is a DC-to-DC charger that can bump the charging current up to 20 amps or more (I installed a model made by Renogy, but there are others). Also, a fairly robust solar charging system (mine is combination of Dokio arrays and MPPT charge controllers rated at 460 watts total) can keep you off the grid almost indefinitely without relying on a noisy generator. UPDATE: Questions show up on Amazon from time to time regarding low temperature protections for LiFePO4 batteries. I think the only way to safely use these batteries when ambient temperatures are substantially below freezing is to provide some source of heat, such as rechargeable heat packs placed around the battery (see Dnaleao hand warmers, for example). Also, insulating the battery box somewhat (I've added foam packing material under and on the sides of my battery) helps. Last year when I submitted this question to Junson Bty (seller of Lossigy LiFePO4 batteries on Amazon), they answered: "When the battery is charged at an air temperature lower than 32 ° F, the lithium ion activity inside the battery decreases, which will lead to the decrease of charging efficiency with the decrease of temperature (this situation is similar to some animals entering hibernation in winter), but this will not cause damage to the battery. It is recommended not to charge at low temperature for a long time."
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Reviewed in the United States on June 20, 2023 by S. Jennings S. Jennings
This 24v battery is absolutely insane! I bought the 200ah for my 24v 80lb minn kota ulterra, used auto deploy/stow, trolled all day, and used spotlock all day and the battery is still at 100%!!!!! This will last a whole week!
Reviewed in the United States on May 19, 2025 by Chong Vang
Style: 12V100AH
Ordered 3 of these batteries. When I had a problem with one I contacted the seller, and even though the warranty had expired they stood behind their product, and responded immediately to resolve my issue. Their customer service is second to none.
Reviewed in the United States on May 14, 2025 by DDD
Style: 12V280AH
I have an update, battery went low I was waiting for it to charge, I have a circuit breaker on it had I switched it off. As I disconnected the battery I heard a loud pop, I thought my inverter had burnt out. As I examined the battery, I switched the circuit breaker on showed battery was not charging. I smelled burnt, theses batteries are no good I had problems with them right from the start.
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Reviewed in the United States on May 11, 2025 by Peter Wolf
UPDATE 12/16/2022 After jumping through some hoops I received a replacement battery from Lossigy. I understand that maybe there was something lost in the translation but having to repeat the same processes of testing I had already done to prove the battery was defective was annoying and ultimately cost the manufacturer money and me time. That said they probably do this to weed out the con artists and those who aren't familiar with this type of battery. Ok back to the update. The battery arrived and I put it on the charger. It took a full charge in about 3 hours time using a 40A charger so it was probably right around a 50% charge when it arrived. I reinstalled it where the old one was and this morning it still had a good SOC. I think I may have had a defective battery from the start with the first one but didn't notice it until the capacity dropped a little so over the weekend I may run a capacity test on the battery just for giggles but it seems to be fine. I have changed my rating from 1 star to 4 as Lossigy was true to their word and replaced the battery. If its still working in another 1.5 years I will change it to a 5 . Bang for the buck this is still a very nice battery if it lasts. **I should add Lossigy included a return label and today I will send the old battery back for testing. Doubt I'll ever hear why it failed but I'd love to know. Purchased this item in August of 2021 mainly due to the price of the item vs capacity. Since the battery would be in in an climate controlled space I didn't need to worry about low temp cutoff etc. From the get go the battery performed great! We use this battery to power a few DC LED floodlights from dusk to dawn every day using a Victron charge controller and solar. Until last month it performed FLAWLESSLY and was probably oversized for what its doing since it never really dropped below 85% SOC. Fast forward to the last few weeks we noticed that in the mornings the lights were not on. Checking the voltage it was at 10.3 volts. Our first reaction was to see if it was charging and sure enough within a few hours it was back at 14.2 and settled at around 13.5v. The next morning dead again. We then decided to charge the item using a noco 10 amp charger and let the charger charge the item for almost two days (although it went into float mode after about 2 hours) reinstalled the battery and the next morning....Darkness. Thinking we might have some crazy battery drain in this very simple system we installed another 12V 100AH weize lifepo4 battery and let it work in our system for a few days and the lights were always on with a soc in the 70% range in the morning. Crazy right? Half the AH and still running strong. So for the second time we charged the Lossigy battery using a 10A noco charger until it was full. We then added a Victron shunt to monitor the battery just to see if there was something funning going on. The next morning lights were out and the battery was in the 10V range again but the shunt displayed under 30AH removed. Its the dang battery. At this time I reached out to the seller and told them everything I have prior to this sentence. Everything I have done. The response was pretty much a SOC voltage chart. Now being someone that powers and entire shop from solar/inverters/lifepo4 batteries I am pretty versed in this stuff so I really didn't need a chart to tell me the battery was dead. Now they want to ship me a 10A battery charger and test it again which led to this review. I have agreed to let them ship me their "special" charger if it speeds up the process but I already know the result because I have done it twice. Sadly it just seems like they are trying to drag it out. I get that some do not understand batteries, charging, etc however I laid out clearly what I have already done. At this time I cannot recommend this battery due to its short service life. A year and a half is not acceptable as the lead acids we used prior lasted over 7 years at half the cost. If the seller makes it right and either refunds the $650 paid or sends me a working battery I will update this review. Until then, remember the old saying that if its too good to be true, it probably is.
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Reviewed in the United States on December 7, 2022 by Diablo Blanco