LiFePo4 12V 4Ah Battery | Starter Battery
- Great starter battery for riding lawn mowers up to 20hp
- Battery Management Systems (BMS) with power terminal cut-off and recovery
- 70% lighter than typical lead acid batteries – only weighs 3.5 lbs
- Two to four times the service life (roughly 3,000 cycles at 80% DOD)
- Cell balancing and low voltage/over voltage protection, short-circuit protection
- Bluetooth equipped to monitor battery status at all times
- Drop in replacements (plug and play)
- Features built-in Emergency Start function that’s easily activated by pressing a button or using the App
- Comes with a 5-Year Battery Warranty to give you peace of mind with your purchase
- Dimensions (LxWxH): 7.7 x 5.1 x 6.1″ (196 x 130 x 155 mm)
- Weight: 3.5 lbs (1.5kg)
- Cold Cranking Amps (CCA) – 300A
12V 4Ah Battery: Best Value Starter Battery On The Market
Our 12V 4Ah battery is the perfect starter battery for riding lawn mowers up to 20hp. Whether you have a large property or a side hustle, experience the cost efficiency of a LiFePo4 starter battery and transform your mowing game.
Did you know that most lead acid batteries go bad after the mowing season because they discharge too much? Unless they’re left on a trickle charge, they essentially become useless. What’s the point of purchasing a battery if it only lasts one measly season? Sure, lead acid comes at a cheaper price (upfront), but at what cost? Is the hassle and headache worth it?
With our LiFePo4 12V 4Ah starter battery, your battery will simply turn off at 25% capacity. This is a massive benefit for homeowners and business owners who opt for lithium. And even though the battery will stop working, if you’re not ready to call it a day, simply press a button and the emergency start function will fire things up again.
World Class Safety Features
All Ionic batteries come with a built-in Battery Management System (BMS), which ensures that voltage, currents, and temperature are monitored at all times. These “smart batteries” won’t accept a charge when the temperature is too hot or too low to do so. This keeps your lawn mower batteries around for the long-haul. Basically, your battery’s BMS pays attention to the minute details so you don’t have to. Another exciting feature is the battery’s built-in Emergency Start function. Pushing a dead mower in the heat of the day is neither practical or feasible. Save yourself the sweat (and headache!) by simply pressing the start button for several seconds or tapping your phone, using the “Ionic Red Battery” App. Either way you’ll be back on your mower in no time.
Speaking of battery apps, did you know that Ionic’s 12V 4Ah battery also features Bluetooth capabilities? By using our app, you’ll have easy access to all of your battery’s details at any time or moment. Wondering how much battery life is left? Or how long it will take to reach maximum charge? The Ionic App will tell you this and much more.
Long-Lasting Battery Life
Looking for exceptional battery longevity? Look no further. The 12V 4Ah battery from LithiumHub is built to last longer than any starter battery on the market. Depending on how often you start your mower, this could mean many years of usage. Just think about it, how many times do you mow your lawn each year? Even if you’re in sunny seaside Florida and mowed every single week of the year, that’s only 52 times each year. This battery can easily last 10+ years. Our 12V 4Ah battery also charges between 4-6x faster than an old school lead acid battery.
Sidenote, did we mention that our Ionic 12V 4Ah starter battery requires no maintenance? Unlike lead acid batteries, there’s no maintenance or worrying about build-up. Simply drop in your batteries & go. You’ll enjoy a smoother, lighter ride..since these batteries weigh only 3.5 pounds!
Best Uses For Ionic Lithium 12V 4Ah Battery
The 12V 4Ah battery is best used for starting riding lawn mowers that travel up to a speed of 20 miles per hour. For starting mowers over 21hp we recommend a more powerful battery, such as our 12V 9Ah starting battery.
Lithium lawn mower batteries are ideal for homeowners or business owners seeking a more environmentally friendly option. There are zero emissions to worry about and your battery is also recyclable. Side note – our batteries also require zero maintenance and last 4-6x longer than the typical lead acid. Your environmentally conscious neighbors will be happy you went with lithium and you’ll be grateful for the savings. Get yours today!
Have Questions? Simply Reach Out
Not sure if the Ionic 12V 4Ah battery is right for you? Get expert advice today.
|Nominal Voltage||12.8 V|
|Nominal Capacity||4 Ah (12Ah)|
|Resistance||≤50 mΩ @50% SOC|
|Self Discharge||<3% per Month|
|Maximum Modules in Series||4|
|Maximum Continuous Discharge Current||50 A|
|Cranking Amps||500A (3s)|
|Cold Cranking Amps||300A (3s)|
|Recommended Low Voltage Cut-Off||11 V|
|BMS Discharge Voltage Cut-Off||8 V|
|Reconnect Voltage||9.2 V|
|Short Circuit Protection|
|Discharge Temperature||-4 to 140°F (-20 to 60°)|
|Charge Temperature||-4 to 113°F (-20 to 45°C)|
|Storage Temperature||23 to 95°F (-5 to 35°C)|
|BMS High Temperature Cut-Off||149°F (65°C)|
|Reconnect Temperature||122°F (50°C)|
|Dimensions (Lx W x H)||7.7 x 5.1 x 6.1″
196 x 130 x 155 mm
|Weight||3.3 lbs (1.5kg)|
|Terminal Torque||80 – 100 in-lbs (9 – 11 N-m)|
|Cell Type – Chemistry|
|Recommended Charge Current||25 A|
|Maxiumum Charge Current||50 A|
|Recommended Charge Voltage||14.2 V – 14.6 V|
|BMS Charge Voltage Cut-Off||15.2 V|
|Reconnect Voltage||14.4 V|
UL1642 & IEC62133 (cells)
|BCI Group Size||U1|
|Water Rating||Water Resistant|
Please read our frequently asked questions page for answers commons questions regarding lithium ion batteries.
Don't just take our word for it! See real feedback from our customers
Trying Out the 12v 4ah U1 Red
I was spec'ing out some Group 31 Batteries for the RV and the John Deere battery died this week so I ordered one of the 12v 4ah Red U1 batteries to see what it would do. I installed it yesterday and it seems to be happy in our John Deere X320. Shipping was fast and efficient, The battery was packed for ground shipping and arrived intact. Simple install with new hardware and only 4 pounds compared to the 18 pounder that came out. The app was super easy to pair with the battery and easy to use and informative. Battery charged right up and is ready for service.
experience the most powerful lithium starting batteries on the market
Buy with confidence with our competitive no-nonsense 5 year warranty.
Ionic uses the best cells so your battery lasts longer and performs better.
Monitor your charge at any time from our user-friendly Ionic mobile app.
get the battery of tomorrow, today
50 percent lighter
2x the power
5x faster charging
You may also like…
LithiumHub chargers are smart chargers that work with our lithium-ion batteries. The chargers provide a constant current and voltage and stop charging once it reaches 14 volts. It’s designed to maximize the life of your lithium battery.
12V LiFePO 4A charger works with any of our batteries up to 30 Ah and will work with lead-acid as well.
12V LiFePO 4A Charger$27.00
These chargers are constant current, constant voltage (CCCV) “Smart” chargers for 12V LiFePO or lead-acid batteries. “Smart” chargers stop charging once it reaches 14.6V.
12V LiFePO 10A Charger