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Miady

Miady 12V 36Ah Lithium Phosphate Battery, Over 2000 Cycles Lightweight LiFePO4 Battery, Replacement Battery for Solar Power, RV, EV and Marine Applications

    • Based on 1,125 reviews
Condition: New
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Availability: In Stock.
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Arrives Dec 5 – Dec 6
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Color: 12V 36Ah


Features

  • Widely Compatible & ReliableCombines superior lithium-iron phosphate technology to provide a better energy solution. Easily uses the same space as your existing 12V battery and replaces conventional solar battery storage units such as sealed Sealed, AGM, or Gel batteries, utilize your LFP battery in power-sport applications, off-grid applications, solar energy storage. It can also run your boat, RV, trailer, golf cart and more.
  • Advantageously Replacement for AGM BatteriesLighter, compact, maintenance-free and more powerful than its lead-acid battery counterparts of 36Ah, offering more than doubled capacity for half weight and footprint.
  • Safest & Highest-cycleNo leakage, harmful fumes, or potential threat of explosion, LiFEPO4 battery has better thermal and chemical stability. Over 2000 cycles, also the cell is able to deliver virtually full power until it is discharged without harming the battery
  • SpecificationVoltage: 12.8V; Amp: 36Ah; Dimension: 7.7*6.3*5.2inches (L/W/H); Weight: 4.31kg/9.5lbs; Terminal: M6.
  • What You Get1 * Miady 12V 36Ah Lithium Iron Phosphate Battery and 18 months hassle-free warranty. 24*7 friendly and professional customer supports. (Battery charger is not included)

Description

Miady 12V 36Ah Lithium Phosphate Battery

Number of Batteries: 1 Lithium Ion batteries required.


Brand: Miady


Battery Cell Composition: Lithium-Phosphate


Unit Count: 1 Count


Voltage: 12.8 Volts


Item Weight: 9.48 pounds


Item model number: 36Ah


Batteries: 1 Lithium Ion batteries required.


Date First Available: May 31, 2023


Manufacturer: Miady


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 5 – Dec 6

This item is non-returnable:

Non-returnable due to Hazmat safety reasons

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great performance
Color: 12V 8Ah
I use this Lithium 12v 8ah battery for a Canadian wilderness trip. It powered a Garmin 4 CV Striker the whole 8 days of fishing. We didn't necessarily fish all day every day, but I never had to recharge it. I fully charged it before leaving. It read 13.3 or 13.4 upon departure. I don't remember which. It only went down to 12.7 V at the end of the fishing trip. I did a lot of mapping of the lake expecting it to drain the battery but it help up, as I said, without having to recharge. Great little (light weight) battery for my intended use. I wouldn't hesitate to order any of Miady lithium batteries. Their prices are very cost effective. I also was able to carry it on the airplane without any trouble from TSA. ... show more
Reviewed in the United States on September 24, 2023 by J Janey
    • Using in an APC Smart-UPS 1400
Review Image by Akom Akom
Or perhaps I should say "using them ON a UPS", since the 20Ah size don't fit inside. There are caveats to using these for a UPS. For one thing, only commercial UPS units are designed to run on batteries for extended periods (personal models can overheat). Also, my Smart-UPS cannot understand their voltage curve, so I had to disable low-battery shutdown and all alarms altogether. It works fine, but it thinks the world is ending. I wrote a blog post about it on tech.akom.net if anyone wants the details. Also note that if these have a 1C (20A) max discharge rate, they are not adequate for my UPS at even a 50% load. Mine normally runs at only 6% load (that's about 5A) so these are perfect. The batteries arrived at 13.20v each, exactly. I ran a load test with UPS at 42% load (which is about 23A from the batteries and about 450 watts at the UPS output), and they held up fine, never dropping lower than 12.1v. They didn't get hot, though the 10 gauge wires did a tiny bit. After 30 minutes of this, their no-load voltage was 13.0 (3.25v per cell), and that's starting from a voltage of 13.95v per battery (UPS charge voltage). That's still quite high. Since I only intend to run at 6%, I should have about 7 hours of battery life, which is insane. With 2000 charge cycles (as opposed to about 5 that I seem to get with Lead-Acid), this is a worthwhile investment, and it's only about 1.8x the cost of lead-acid batteries. Note that since I'm using them in series, they can become unbalanced over time. I haven't had them long enough to know. If this is the case, I may need to balance them manually (maybe once a year?). I'll update if there are any developments. ... show more
Reviewed in the United States on June 29, 2021 by Akom Akom
    • [Update: please read!!] Had three batteries die after just one discharge
Color: 12V 6Ah
So I previously trashed this product in a similar way to the other 1 star review due to my lack of knowledge on how these batteries work. These batteries have internal battery management systems (BMS) which cutoff the current at 10V and cause the batteries to read 0V. I was under the impression this was either a "recommended cutoff" on the datasheet or the BMS would cut the current and then restart a moment later like many other BMS's do. When looking online, many people stated the drop to 0V was part of the protection circuit and was permanent: This isn't true! These batteries are designed to go into a sleep mode when they reach 10V and will wake up when voltage is applied from a charger. This is actually an incredibly useful feature for my application of using these as a portable power bank for heated motorcycle gear. I no longer need to worry about over discharge. I can just let the internal cutoff activate if the cells get too low (obviously this isn't preferred, but will work in a pinch if I run the batteries longer than normal). Now here's the issue: The charger I'm using, which is a smart charger for sealed lead acid (SLA) and Li Ion batteries used in cars, needs to detect the voltage coming from the battery to turn on charging. As a result, it does not send out any voltage of its own and will not wake up a sleeping battery. To turn the batteries back on, I VERY quickly tapped a 9v battery across the terminals of the battery (another 12v battery would have been better), positive to positive and negative to negative. This supplied the needed voltage to wake up the BMS and allow the 11.2 or so volts remaining to be present on the terminals once again. Now my smart charger could detect the battery and charge it like normal. Yes, the battery had 11.2V when the cutoff is 10V. This is not a defect in the BMS, rather, the voltage will sag under load to 10V, the cutoff will activate, and when the battery is woken up it will once again read the non-sagging "open circuit" voltage as there is no load any more. Overall I'm very happy with the 3 batteries I bought which arrived with identical voltages, perfect for parallel configurations. They have more power than I was expecting and should easily run my heated gear for 2+ hours on max heat. Being able the use a standard SLA charger and having an automatic low voltage cutoff makes these a versatile power source for many projects. Just make sure you have a way to "wake up" a battery that has reached the low voltage cutoff; either another battery or a non-smart charger. Here's the result of my discharge test for those who are curious about how much power these have. I'm using 3 batteries in parallel for roughly 18Ah of capacity (Series configurations are not recommended without a BMS, and even then, these batteries have internal BMS's so most people wouldn't recommend series configurations at all. I'll leave you to decide if you want to run series or not). I was powering a heated vest which consumes 5 amps at max heat and has 5 power settings. You can very roughly estimate that each power setting draws 1 amp (setting 1 is 1 amp, setting 2 is 2 amps, etc.), but the actual current draw is likely higher based on my testing. Here's the results: Heat 1 for 1.5 hours Heat 2 for 3 hours Heat 4 for 2 hours At this point the low voltage cutoff activated around 6.5 hours after I started running the heater! Obviously this isn't even remotely scientific as I used different settings and the only power setting that I can check the current draw accurately on is setting 5 which draws 5 amps (other settings use PWM so my cheap multi-meter is pretty useless). I'm pretty happy with these results and this pack should power my gear for a few hours with medium heat settings. *****Old Review: I used these batteries to build a large battery pack (wired three in parallel). They charged up just fine, but near the end of their first discharge (powering a heated motorcycle vest on medium heat, about 3 amps) all three cells dropped to 0.1 volts and ceased functioning. At my last voltage check (about 15 minutes before failure) the cells read 12.1 volts, well above the 10 volt discharge cutoff. Because the load was spread over the batteries, I had roughly 1 amp on each battery, which is within the 1.2 amp standard discharge rating on the datasheet. These batteries are rated for a continuous discharge of 6 amps each which I never hit in my testing. Really disappointed in these batteries. ... show more
Reviewed in the United States on November 28, 2019 by Mark
    • Works for what I needed
Color: 12V 6Ah
I used this to replace a lead acid battery used in a largish speaker. The speaker came with a lead acid I replaced once already. The radio runs them down to almost nothing making the lead acids cycle life God awful and loosing significant capacity each time. This was a direct replacement and has worked great. Capacity is larger than the lead acid. It charges with its same internal trickle charger (also responsible for killing the lead acids since it never really stops trying to charge) So far it's lasted over a year where the lead acids would be un-useable within a month or two. I never measured the capacity. But it's apparent that any low current application would be fitting. And The BMS seems to protect it well enough in my application. I would not use this for UPS replacements. Inverters tend to draw alot of current. 4 stars because I see alot of people received ones with quality control issues and woranttee issues and I don't want to pump up a rating for a company that doesn't properly stand by their promises. It's also unfortunate to hear it doesn't have over current discharge protection. ... show more
Reviewed in the United States on November 9, 2021 by Jimmy

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