Miady 12V 15Ah Lithium LiFePO4 Battery, 3000+ Deep Cycle Rechargeable Battery For Small UPS, Fish Finder, Power Wheels, Scooters, Solar Power, Built-in 15A BMS（5.9" L x 3.7" W x 3.9" H)
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Availability:
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Sunday, Aug 2
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Size: 12V-15Ah-3000+
Features
- Superior Performance:Miady 12V 15A battery delivers high energy density, long cycle life, fast charging speed, and outstanding safety features. It is equipped with an advanced Battery Management System to prevent battery failures caused by overcharge, over-discharge, over-current discharge, short-circuit, and self-balancing cell voltage. (Note: This is not a starting or power battery.)
- Long Cycle Life: Lithium batteries have 3000+ cycles and a 10-year lifespan, while traditional lead-acid batteries have only 200-300 cycles, resulting in a lower average cost of use. Their low self-discharge rate ensures hassle-free storage for up to 1 year. Additionally, lithium batteries' volume and weight are approximately 1/3 of those of lead-acid batteries.
- Wide ApplicationsThis LiFePO4 battery is widely used in various applications: For Small UPS,Fish Finder,Kids Car,Scooters,Solar Panel Power,small Trolling Motor,Camera,Speaker,Gate Opener,Emergency lighting (LED strip etc),12V router,Kayak,Backup power,Ham Radio,Home Alarm ,Fire Security Systems,12V Router and more.
- Reliable Recharge: Our 12V 15Ah LiFePO4 battery supports flexible series/parallel configurations, allowing connection of up to 4 identical units to achieve 48V-51.2V max voltage and 60Ah expandable capacity, while requiring zero maintenance (e.g., no water refilling) compared to lead-acid batteries. (Battery charger is not included)
- 12-Month Assurance: For any inquiries regarding your purchase, please reach out to us through either of these convenient methods, click the "Ask a question" on our storefront,or Go to "Your Order" in your account, select the relevant order, and choose "Contact Seller".
Brand: Miady
Vehicle Service Type: Scooter, rv ,fish finder
Size: 12V-15Ah-3000+
Voltage: 12 Volts
Battery Cell Composition: Lithium Polymer
Product Dimensions: 5.9"D x 3.93"W x 3.7"H
Terminal: F2 Terminal
Automotive Fit Type: Universal Fit
Manufacturer: Miady
Brand: Miady
Size: 12V-15Ah-3000+
Battery Cell Composition: Lithium Polymer
Product Dimensions: 5.9"D x 3.93"W x 3.7"H
Terminal: F2 Terminal
Automotive Fit Type: Universal Fit
Manufacturer: Miady
Model: lifepo4
Item Weight: 3.56 pounds
Item model number: MI-LFP15AH
Batteries: 1 D batteries required. (included)
Manufacturer Part Number: LFP15AH
Date First Available: September 18, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Aug 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
These are long life and great little batteries. I use it for portable Ham Radio
Reviewed in the United States on January 13, 2026 by Ziprun01
Size: 12V-15Ah-3000+
Used this battery for 2 months of regular POTAs with a 10W radio while visiting my old home state. Lasts for days. Zero degradation. Outperformed all of the other batteries I've owned in it's class. Great price. Small size. Rock and roll. Hard to go wrong with this one. I left it in my storage unit fully charged. Will report back when I visit again which may be quite a while.
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Reviewed in the United States on October 22, 2025 by Tom
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.
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Reviewed in the United States on November 28, 2019 by Mark
Ordered 20.. 19 of these batteries performed well.. however none met the specification of 256Wh. Average performance is around 240Wh One of the batteries failed and could not be charged. I opened the battery up for examination. Has 40 2000mah LiFePO4 can type batteries inside. 10 batteries in parallel then 4 series to make 12.8v. Measured voltage.. 3 parallel groups are Dead. One parallel group still okay at 3.6 volts.. hummm maybe bms failed draining these to basically 0.0v? Anyway overall they are very light.. powerful and function well. Im using for camping and outdoor remote power needs and they are a million times better than a 50lb lead acid! For special needs.. look pretty dang good.
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Reviewed in the United States on February 3, 2021 by Mr. T
I am a bit of a tinkerer. Bought two of these to use for various little projects around the house - i.e. testing solar panels and charge controllers, running various 110v items off power inverters, testing out vehicle lighting systems, etc. So far, they have taken everything I have thrown at them and performed like little champs. I ended up using them to build a solar battery bank for semi-off grid camping trips with my kids, and they keep our lights running, phones charged, and music playing all weekend with minimal solar recharging (read: in the woods under heavy cover). I have managed to run them almost completely down a few times. They've always recovered quickly, and still hold a charge exceptionally well. Last night, I used them to run a Craftsman shop light while working on a vehicle in my driveway for about 4 hours, and they performed beautifully. These batteries are very compact and lightweight, and they have been absolutely the perfect fit for my needs. However, I am now thinking I'll purchase a few more just to see how long I can run my little workshop on battery power alone. If you're looking to experiment with wind/solar power but don't want to risk blowing through expensive 200+Ah batteries, these are the perfect entry-level power storage, utilizing the latest in battery tech at a really affordable price. 10/10 will buy again and recommend to friends
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Reviewed in the United States on October 19, 2020 by BAMF