Lion Safari UT 250

Lion UT 250 Battery (12V, 20Ah, LiFePO4)

12V 20Ah Lithium Iron Phosphate (LiFePO4) Battery

The Safari UT™ 250 replaces lead acid batteries for energy storage and for auxiliary power. It’s great for smaller power needs than the Safari UT™ 700 or 1300.

  • Last Longer – 7 year warranty.
  • Maintenance Free – Retains charge up to 1 year with no trickle charging or fluids needed.
  • Fast Charging and Lightweight – 15% faster charging with its smart Battery Management System (BMS) and only 5 lbs.
  • Longer Run Time – Uses all the stored energy instead of 50% like lead acid batteries do.
  • NOTICE: For auxiliary power only. Not for use as a starter battery.


The Safari UT™ 250 is the latest in Lithium Battery technology. It replaces traditional deep cycle lead acid batteries with the safest and longest lasting type of battery – Lithium Iron Phosphate. The Safari UT 250 has 256Wh, 20Ah and 12V and only weighs just over 5 lbs.


Shed icon


Wheelchair icon


Gazebo icon


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Mobility Scooter

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DIY Solar Kit

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Bundle and Save with UT 1300 Custom Kits

Add as many solar panels, charge controlers, battery warmers, etc as needed. Save up to 24%.

12V Lithium Battery 105AH
Solar Power System

One UT 1300 plus solar panels

Starting at $1,058
Save up to 24%*

12V Lithium Battery 210AH
Solar Power System

Two UT 1300 batteries and solar panels

Starting at $2,058
Save up to 15%*


There's a lot of things to love about the Safari UT 250 from the light weight of just over 5 lbs. and zero maintenance to it being able to be recharged with renewable sources like the sun.

Weighs Less

At only 5.2 lbs, it super light weight.


Made from Lithium Iron Phosphate, it's the safest lithium battery on the market. You can use it indoors or outdoors.

Lasts Longer

Long lasting life cycles at 2,500+ using full depth of discharge (DOD). It can hold a charge for up to 1 year.

Renewable Solar Batteries

Use the power of the sun to fully recharge the UT 250 in as little as 2.5 hrs.

2X the Energy

You can use all the stored energy (20Ah) of the UT 250 instead of only half, like lead acid batteries do.

Expandable for More Power

If 20A continuously and a 35A peak, isn't quite enough, connect two in parallel or in series for more power and capacity.  

Zero Maintenance

No fluids. No trickle charging. No mess. The Safari UT 250 just works – day in and day out.  

7 Year Warranty

Using Lithium Iron Phosphate technology it can be drained and recharged over 2,500 times – much longer than Lead Acid batteries. That is why it's backed by a 7 year warranty.

Environmentally Friendly

Produces zero emissions or carbon footprint during use, no greenhouse gases, and does not damage the environment. It's good for you and the planet.


Our UT battery series comes with our own proprietary BMS that will protect your battery from harm. It's like having its own bodyguard.

The Safari UT series all have an internal Battery Management System (BMS) that acts as a safety net to shut down the battery if it goes outside of set parameters. This prevents the battery from overcharging or discharging as well as operating outside of specified temperature range.




This small but powerful battery has 20Ah of capacity which can provide a full day of power for electronics like a fish finder, ice auger, gazebo lights, or powering your wheelchair or mobility scooter. The UT 250 is a great, smaller option.

We have created a step-by-step walk-through on how to use the the UT battery series for either:


In addition to powering all your toys, you can also use your Lithium Iron Phosphate batteries to be prepared for any emergency.

The Lion Energy Safari Solar Kit lets you harness the power of the sun, store the energy in your UT 250 battery, and convert it to power for your devices, tools, lights, and many other power needs. Use the DIY Kit for your shed, cabin, gazebo, campsite, or outdoor adventure.


Safari UT 250

Weight (pounds)


Dimensions - Inches (L x W x H)
(Wingnuts add 0.5 inches in Height)

7.1 x 3.0 x 6.6
(7.1 x 3.0 x 7.1)


7 Years



Safari UT 250

Battery Chemistry

Cylindrical Cell LiFePO4
Lithium Iron Phosphate

Battery Capacity - Watt Hours (Wh) / Amp Hours (Ah)

256Wh / 20 Ah

Battery Output - Amps (A)

35A Continuous Discharge

Life Cycles

2,500+ at 100% Depth of Discharge (DOD)

Charge Retention

Up to 1 Year

Charging / Operating Temp

32° to 113° F / -4° to 131° F

Series / Parallel

12V to 48V / 20Ah, 40Ah, 60Ah+

Safari UT 250

Maximum Charge Rate - Amps (A)

Up to 20A

Recommended Charging Voltage - Volts (V)

13.9V - 14.6V


Lithium Iron Phosphate, or LiFePO4, batteries are one of the most durable and reliable energy sources on the market and a drastic improvement over lead acid in safety, weight, capacity and shelf life.

LifePO4 molecule diagram



Lithium Iron Phosphate is the safest lithium on the market. It will not explode or catch on fire. It is absent of potentially volatile chemicals that are found in other lithium cells.

Long Lifespan

Lithium Iron Phosphate batteries have up to 6,000+ life cycles without significantly decreasing performance. That means they last for years and years. By comparison, the average lifetime of lead-acid batteries is just two years.

High Efficiency

Lithium Iron Phosphate has 100% of its capacity available for use. It can be quickly charged, discharged, and recharged again, reducing any downtime, which increases efficiency. This makes it a great fit for a variety of applications.

No Active Maintenance

It does not require active maintenance to extend its service life. The batteries show no memory effects and can be stored for long periods of time because of the extremely low self-discharge rate (<3% per month). No need to trickle charge.

Flexible Use

Because they emit no fumes or require little air flow, you can use them inside or outside. They can be stacked on top of each other or can be used in any position and a variety of uses like in RVs, Trailers, Outbuildings, Boats, and DIY projects.

Peaks and Valleys Energy Use

Using Lithium Iron Phosphate for energy storage, you can optimize usages and help solve the peaks and valleys that occurs during high and low energy demand usages. This also can help to stabilize the grid from intense demand cycles by allowing you to use the stored energy when you need it.

Renewable Power

For the first time, green energy can not only be generated but effectively stored and used as needed. You can harness the power of the sun and use it over and over again, when you need it.

Lightweight and Portable

Lithium Iron Phosphate batteries are relatively small and light weight. Compared to lead-acid batteries, lithium provides great energy density at about half the mass and weight.

Energy Independence

Energy storage allows you to be independent of the grid so you can have energy where and when you want it. So, no worries about black outs, brown outs, or when the grid goes down. And you don't have to be tethered to the wall or wiring.


Safari UT 1300 Deep Dive - Similar to UT 250

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Energy Independence

The Lion Safari UT 250 is made from Lithium Iron Phosphate. Because it does not emit any toxic fumes or gases, you can use it inside your home, tent, RV or any other confined area. Lithium Iron Phosphate is the highest grade, safest battery composition available and has no potentially volatile chemistry. The UT 250 goes through extensive testing from initial design through production and before it ever leaves Lion Energy. It doesn't get shipped to you until it passes our Grandma Test (it's good enough to give to our own grandma, it's that good).

If you want to know more about how safe Lithium Iron Phosphate is (UT 250) click below.




The Safari UT lithium battery series performs better than lead acid batteries in most weather conditions. It can charge between temps of 32° and 113°F and can discharge between -4° and 131°F at 100% rate.

ALL types of batteries need to be above freezing in order to charge them. As a result, it is best to use the batteries in a climate controlled location (not on the tongue of a trailer or using a lead acid battery compartment that has to be ventilated, thus allowing freezing air to circulate around the battery).

The Safari UT and other lithium batteries can be placed in an insulated space, inside the RV or other climate controlled areas. Some users have suggested using a Battery Heating Pad that you can find online. We recommend using the battery in a climate controlled location.

If you want to use some type of heating element to keep the battery above freezing, you may want to do an online search or check out sites like

What is the Safari UT 250?

The Safari UT 250 is the latest in Lithium battery technology. It replaces traditional deep cycle lead acid batteries with the safest Lithium Iron Phosphate. It is a "plug and play" battery. Simply remove the deep cycle lead acid battery and replace it with this superior performing battery.

What does the Safari UT 250 power?

The Safari UT 250 is an amazing Lithium Iron Phosphate battery that can be used for auxiliary power in Boats, Cabins, Sheds, Gazebos, and where you need a reliable sources of stored energy. It replaces lead acid batteries and provides twice the energy because all of its energy (amp hours) can be used instead of only ~50% like lead acid batteries provide. How about using it to store energy at a cabin so you can power lights and more? Yes, you can use it for that too. It can be used 100% and then recharge over 2,500 times and still have 80% of its capacity left. (Note: The Safari UT 250 is not a battery to use for starting vehicles.)

How long does it last?

The life of the Safari UT 250 Lithium battery is approximately 14X that of deep cycle lead acid batteries in its class. And it comes with a 7 year warranty.

How long can the Safari UT 250 hold a charge?

The Safari UT 250 will maintain its charge for up to 1 year without having to charge it. This is known as shelf life or storage life. However, we recommend using it more frequently.

Can it store solar power?

The Safari UT 250 is a great energy storage unit for solar power from panels on homes, cabins, businesses, and RV's, just in smaller amounts than the Safari UT 700 or 1300.

Do I have to maintain it?

The Safari UT 250 is virtually maintenance free, meaning you don't have to use it or even trickle charge it every 3-4 months or deal with water or acid since it doesn't have any. It can hold its charge for up to 1 year and can be recharge and used time and time again.

Is it good in bad weather?

The Safari UT 250 performs better than lead acid batteries in most weather conditions. It can charge between temps of 32° to 113° F and can discharge between -4° to 131° F at 100%.

How big is it?

The Safari UT 250 weighs in at just 5.2 pounds. The dimensions are 7.1" x 3.0" x 6.6" (L x W x H)

What's the rated capacity?

The Safari UT 250 is commonly referred to as a 12V, 20Ah (how much energy is stored in it), 256Wh. Technically, it is nominal 12.8V lithium iron phosphate battery.

Can you use it in series or parallel

Yes. The Safari UT 250 can increase the voltage from 12V up to 48V total by connecting them in series (4 batteries connected together via + to - posts). You can increase the amps (A) and Amp Hours (Ah) up to 140A and 60+ Ah in parallel (+ to + and - to -). If you really want to increase your power and capacity, we recommend upgrading to the Safari UT 700 or 1300.

Battery Charging Parameters

We recommend setting all voltage to a max of 14.6 per Safari UT in series or at least close to it. End amps or tail amps need to be set as low as possible and inverter low voltage needs to be set to 11.5V. Victron inverters charger and charge controllers should be set to 13.9V for a 12V inverter and 27.8V for 24V inverters.

What is a BMS?

The Safari UT already has an internal Battery Management System (BMS) that acts as a safety net to shut down the battery if it is out of specific parameters. This prevents the battery from over charging or discharging as well as operating outside of the temperature range.

Can I use my standard charger?

Yes! You could use a standard battery charger and it will charge the Safari UT battery. However, since most chargers are designed for a lead acid battery, they are made to go up to a certain voltage. On a lead acid battery their "full" is about between 12.8V and 13.8V. The Safari UT 250 can accept a charge up to 14.8V. Most charger will get the batteries up to 13.8V. For best performance, we recommend a lithium charger.

Can I use a heating element to keep my lithium batteries above freezing?

If you want to use some type of heating element to keep the battery above freezing, do an online search or check out sites like You can keep the battery inside so it's not exposed to extreme temperatures.



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Lion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) Review


I charged it up and used it in the house to power on a standing pole lamp. I let it burn for 8 hours and had no problems at all with it. No dimming of the light or interruptions of any kind. The bulbs I'm using in the lamp are LED's so I have no idea of how long this battery would power it but it's nice to know if my electricity went out I'd have lights for at LEAST 8 hours if not more. The battery is light weight so it's easy to move around too.

Lion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) Review

Lion Energy 18 Volt Lithium-Ion Battery

The Lion Energy 18 Volt Lithium-Ion battery is a great little battery. We have be keeping in charged up the Lion Energy 100 Watt, 12 Volt Solar Power Kit. This has enough volts, and amps to keep our fridge running in our small travel trailer. And maybe the TV. We currently use in combination with the solar kit to keep our cell phones, laptops, Android devices, ETC charged. A great little battery to begin, and learn solar power. And hey, its renewable energy.

Lion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) ReviewLion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) Review

Lightweight and portable Lithium battery

I am using this Lion Safari UT 250 battery in conjunction with the Lion Beginner DIY Solar Power Kit. The battery came well packaged. I appreciate how light weight it is. When connected to the solar panel it began to charge immediately. The thumbscrew connectors work well for connecting to the solar charge controller. Once it was charged and connected to the 400W Solar inverter, I was able to charge my lawnmower battery, weedeater battery, and other small tools. I'm looking forward to using this battery for camping and outdoor lighting at my home.

Lion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) ReviewLion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) Review

Big enough

This little battery holds quite a bit of power. I fully charged it with the solar panels and ran my small fan all night. There's still power left in it. It doesn't weigh much at all. My first thought was it needed to be filled with water. The battery is sealed to keep you from making that mistake. But honestly it is so lightweight. No need for handles. So easy, just screw in the posts and it's ready to charge. Small enough to set on a ledge or 2x4 frame in shed. I may get another battery or maybe a larger battery to store more power. It really depends on how much I end up using it. A few of these fully charged would be awesome to have during power outages.

Lion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) ReviewLion Energy Lion UT 250 Battery (12V, 20Ah, LiFePO4) Review

Solar energy storage battery

This is not your average lawn equipment battery! It charges with the limitless free power of the sun! I love the concept of being able to have some amount of electricity during a power outage! My family recently lived thru Hur ricane Maria. It was a minor storm, but caused a three day power outage that seemed like a week! The anxiety of having my food supply spoil in the freezer was more than I can take. I was seriously considering buying a generator. But after looking into the amount of gasoline they burn thru, I decided against it. This is where this solar charged battery is so much better. It works with a complete solar kit, also sold by this company. Im looking forward to getting it all connected and set up just in case of a future power outage.