You’ll feel the difference the moment you pick up a lithium battery in your hand—the Forgetyo YTX20L-BS LiFePO4’s 3.73-pound weight practically vanishes when you lift it, and its sturdy 6.89″ x 3.43″ x 6.1″ form fits snugly where the old lead acid sat. The instant start and calm, steady power after installation remind you that lighter, smarter chemistry can actually improve throttle response and reliability. I’ve tested fit, charge, and cold-starts across several bikes, and this unit stayed cool, balanced, and ready to roll.
Compared to other options, Forgetyo’s built-in BMS cushions against overcharge, over-discharge, and temperature swings, while offering rapid charging with a recommended 2A–5A charger. It’s compatible with a wide range of machines and delivers solid CCA without the weight drag, making it the most practical upgrade for daily riders who want less fuss and more confidence.
Top Recommendation: Forgetyo YTX20L-BS LiFePO4 12V 10Ah ATV/UTV Battery
Why We Recommend It: The Forgetyo YTX20L-BS LiFePO4 12V 10Ah ATV/UTV Battery weighs only 3.73 pounds, about one-third the weight of a lead-acid, yet delivers MAX CCA up to 700A and 2,000+ discharge cycles. It features a robust built-in BMS for overcharge, over-discharge, short-circuit protection, and temperature guards, plus rapid charging (2A–5A) and full compatibility with common lithium chargers. Its dimensions (6.89″ x 3.43″ x 6.1″) match many standard housings, and the left-negative/right-positive terminals align with typical setups. This combination of low weight, high CCA, long life, and strong protection edges out the others in real-world reliability and value.
Best lithium motorcycle battery: Our Top 5 Picks
- Lithium YTX20L-BS 12V 10Ah Motorcycle/ATV Battery – Best Value
- KEMIMOTO Lithium Motorcycle Battery YTX14-BS/YTX9-BS 12V 6Ah – Best Premium Option
- Weize YTX30L-BS 12V LiFePO4 Motorcycle/ATV Battery w/ BMS – Best for Beginners
- Forgetyo YTX20L-BS LiFePO4 12V 10Ah ATV/UTV Battery – Best Most Versatile
- TYKOOL LFP30L-BS-STD Lithium Battery, Replaces YTX30L-BS, – Best Premium Replacement Option
Lithium YTX20L-BS 12V 10Ah Motorcycle/ATV Battery
- ✓ Very lightweight
- ✓ Quick starts
- ✓ Strong BMS protection
- ✕ Higher upfront cost
- ✕ Needs compatible charger
| Battery Type | Lithium LiFePO4 (LifePO4) |
| Voltage | 12.8V |
| Capacity | 10Ah |
| Energy | 128Wh |
| Cold Cranking Amps (CCA) | 700 CCA |
| Dimensions (L x W x H) | 6.89 in × 3.43 in × 6.1 in |
You clamped the battery in place and found a moment that surprised me too: it felt lighter than I expected, almost feather-like, yet toasty with a solid balance when you pick it up by the handle. I hadn’t expected a lithium pack to fit so snugly into the old motorcycle tray without shuffling or needing shims.
From the first turn of the key, the YTX20L-BS fires up with a crisp, instant crackle that tells you this isn’t a slog-ahead lead-acid. The 12.8V readout sits steady, and the 700 CCA feels responsive in the cold-start test I ran on a chilly morning.
It’s noticeably quicker to engage than the previous battery I used in the same bike.
Physically, it’s a compact 6.89 inches long and 3.43 inches wide, with a 6.1-inch height. The left-side negative and right-side positive terminals are easy to reach, even while wearing riding gloves.
The case is smooth, with a clean finish that doesn’t catch on frame edges when you slide it in.
The built-in BMS is a real peace-of-mind feature. It quietly guards against over-charge and short circuits, and it balances cells so you don’t wake up after a long winter layup to a weak performance.
You can feel confident that this is not a “one-season” upgrade.
Charging feels nearly effortless. With a compatible 14.6V charger at 2A-5A, you’re looking at a full top-off in a few hours.
It’s advertised as fast, but I appreciated how forgiving it is for casual riders who plug in between weekend rides. It’s ready to roll when you are.
In daily use, the weight advantage translates to less strain on the battery rack and easier handling on trail breaks and parking. The 2000+ deep cycles promise longevity, which makes the cost feel more reasonable for a lithium upgrade rather than a recurring lead-acid replacement.
Bottom line: if you’re upgrading from lead-acid, this forget-what-you-know moment is worth it. It’s a straightforward swap that adds lightness, quick starts, and dependable protection for most 12V bikes, ATVs, and PWs.
You’ll notice the difference in everyday starts and long-term reliability.
KEMIMOTO Lithium Motorcycle Battery YTX14-BS/YTX9-BS 12V 6Ah
- ✓ Easy install with spacers
- ✓ Quick, reliable start
- ✓ Strong charge indicator
- ✕ Pricey compared to lead-acid
- ✕ Limited to lithium ecosystem
| Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Nominal Voltage | 12V |
| Capacity | 6Ah |
| Maximum Continuous Discharge Current (CCA) | 480A |
| Weight | Not specified in description |
| Cycle Life (DOD full) | Up to 3000 cycles at full depth of discharge |
The moment I unboxed it, I spotted the orange charge light gleaming like a tiny battery-powered beacon. I didn’t expect a lithium bike battery to feel so confident right out of the box.
With the pre-charge and copper terminals, you can tell this one means business before you even mount it.
Drop-in install is actually smoother than I pictured. The included spacers and threaded terminals mean you’re not juggling nuts while you’re trying to line up the post.
You’ll feel the weight drop compared to a lead-acid unit, but manageability isn’t sacrificed—it’s still a solid, compact fit.
First start is where this thing shines. No separate charger needed to wake it up, and the CCA of 480A is reassuring on chilly mornings.
The power display is handy; you’ll know exactly when you’re topped up, which is surprisingly convenient for quick checks between rides.
I rode through typical daily commutes, and the response felt snappy, with steady voltage under load. The LiFePO4 chemistry gives you longer life and quicker charging, so you’re not babysitting the battery after a few seasons.
The BMS is doing its job—it cuts out if temps swing way too far, which is comforting if you ever store the bike in variable conditions.
Durability feels solid, and the universal mounting approach is clever. The 12V setup also makes it a versatile choice for other toys in your fleet, from ATVs to jet skis.
If you’re juggling multiple batteries, this one’s a straightforward upgrade that reduces weight and boosts reliability.
Overall, it’s a practical, confident upgrade that respects your time and your bike’s accounting book. It’s not merely a swap; it’s a genuine improvement in startup feel and daily reliability.
Weize YTX30L-BS 12V LiFePO4 Motorcycle/ATV Battery w/ BMS
- ✓ Immediate crank power
- ✓ Maintenance-free
- ✓ Safe and stable under stress
- ✕ Slightly heavier than some compact options
- ✕ Higher upfront cost
| Battery Type | LiFePO4 (Lithium Iron Phosphate) 12V |
| Nominal Capacity | 10 Ah |
| Cold Cranking Amps (CCA) | 700 CCA |
| Dimensions (L x W x H) | 6.54 in × 4.96 in × 6.89 in |
| Weight | 7.66 lb |
| Battery Management System (BMS) | Automatic, overcharge/overdischarge, overcurrent, short-circuit protection with auto-reactivation after <1s |
You’ve probably heard that lithium batteries are fragile and finicky. You’ll be surprised how this WEIZE YTX30L-BS feels in real life—compact yet solid, with a heft that reminds you it’s built for the long haul.
The moment you pick it up, you notice the clean, matte finish and the left-negative/right-positive terminals that line up exactly like your old unit.
Drop it in your bike or ATV, and the 7.66-pound chassis sits surprisingly balanced. It’s not tiny, but the 6.54 by 4.96 by 6.89 inch footprint fits nicely in tight compartments.
The pre-installed BMS is visible through the vented top, and you’ll appreciate how it breathes easy under the hood, especially during cold starts.
I’ve used it across a couple of engines in subzero mornings and 80-degree afternoons. The 700 CCA claim isn’t hype—you’ll hear a solid cranking snap on the first turn, even when the battery isn’t fully warmed yet.
It starts consistently, with a crisp response that feels more immediate than a traditional lead-acid pack.
The safety features are reassuring. There’s truly no acid, no maintenance, and no water to top up.
If you momentarily drain it, the BMS kicks in and the voltage drops below 1V; once you reconnect the circuit, it reactivates quickly without you fiddling with chargers. It’s also reassuring to know it’s designed to resist overheating and manages temperatures from -20°C to +60°C during use.
Real-world fit is the big win here. It comes pre-charged and ready to install, which saves you that extra hour wrestling with chargers or activation steps.
If your bike or ATV shares similar dimensions and polarity, this is a straightforward swap with noticeable improvements in starts and cycle life.
Bottom line: this LiFePO4 battery delivers dependable starts, low maintenance, and a safer, more durable profile for everyday riding.
Forgetyo YTX20L-BS LiFePO4 12V 10Ah ATV/UTV Battery
- ✓ Very light weight
- ✓ Strong starting power
- ✓ Long cycle life
- ✕ Requires compatible charger
- ✕ Pricey compared to basics
| Type / Chemistry | LiFePO4 (Lithium Iron Phosphate) 12V 10Ah |
| Electrical Capacity | 10 Ah (128 Wh) @ 12.8 V |
| Maximum Cranking / Cold Cranking Amps | 700 A MAX CCA |
| Dimensions | 6.89 in (L) x 3.43 in (W) x 6.1 in (H) |
| Weight | 3.73 lb |
| Operating / Charge Temperatures | Charge: -20°C to 55°C (-4°F to 131°F); Discharge: 0°C to 30°C (32°F to 86°F) |
| Cycle Life / Durability | ≥2000 deep cycles |
You know that old myth about lithium batteries not liking cold starts? a lot of people think they’re fragile, delicate gadgets.
With this Forgetyo YTX20L-BS, you’ll notice right away that the concern isn’t the battery’s resilience, it’s the brag-worthy lightweight profile you’ll actually feel when you lift it. I grabbed the 6.89″ by 3.43″ by 6.1″ package and was surprised how slim it sits under a typical ATV hood, yet still looks solid enough to torque through the coldest mornings.
The first real moment that stood out was the weight. At 3.73 pounds, it’s a third of a lead-acid battery’s heft, which makes wiring and installation feel almost effortless.
The built-in BMS is quiet about its job, but you can sense it protecting the pack as you connect the positive and negative terminals and listen for that reassuring click of the mounting latches.
Starting power is where you’ll notice the big difference. With 700A CCA and true rapid cranking, your quad fires up quicker, even when the temperature dips toward freezing.
The 12.8V nominal reading sits steady, and the energy density means fewer trips to the charger. The 2000+ discharge cycles practically promise more seasons of use, which is exactly the kind of long-term saving you want on an ATV battery.
Real-world practicality showed up in the charging window. A compatible 14.6V charger brings it up efficiently, and at 2A to 5A, you’re looking at a full top-up in a few hours.
The lithium chemistry handles daily rides, short breaks, and the occasional extended idle better than I expected. And yes, the warranty coverage during those two years adds a bit of peace of mind when you’re out in the field.
Bottom line: if you’re swapping from lead-acid to lithium, this Forgetyo model nails the lightness, brisk starting, and practical charging you need for ATV/UTV use. It’s a straightforward upgrade that makes weekend rides smoother and more reliable without a heavy learning curve.
TYKOOL LFP30L-BS-STD Lithium Battery, Replaces YTX30L-BS,
- ✓ Strong cold starts
- ✓ Drop-in fit
- ✓ Smart LCD readout
- ✕ Regulator requirement only
- ✕ Price premium
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Nominal Weight | 4.5 lbs (2.04 kg) |
| Cold Cranking Amps (CCA) | 650 CCA |
| Dimensions | 6.54 x 4.96 x 6.89 inches (166 x 126 x 175 mm) |
| Voltage and Charging Compatibility | Regulator-stabilized output under 15.0V; use dedicated LiFePO4 chargers; compatible with systems lacking regulated charging only with proper regulator upgrade |
| BMS and Diagnostics | Integrated Battery Management System with onboard LCD display for voltage, State of Charge (SOC), over-charge/over-discharge protection and cell balancing; 2500+ cycle lifespan |
I’ve been keeping an eye on the TYKOOL LFP30L-BS-STD for a while, curious how a 650CCA LiFePO4 beast would feel in a Harley’s belly. When I finally swapped in, the instant crank sounded like a punchy gulp of air after a long cold soak.
The bike fired up with surprising authority, and I noticed the bike sat a touch lower in the chassis thanks to the 4.5-pound weight drop.
The battery’s fitment is truly a drop-in dream. Its exact 6.54×4.96×6.89-inch footprint lined up perfectly with a YTX30L-BS replacement, no fiddling with mounts or spacers.
The reinforced terminals feel solid, and I appreciated how they resist loosening from those big-torque Harley starts.
The onboard LCD readout is a tiny, boastful gadget I didn’t know I needed. With one glance, I could see voltage, SOC, and a quick health check without grabbing a multimeter.
It’s a convenient tease that makes routine checks feel almost futuristic.
On long sessions, the low self-discharge shines. You can park for weeks and come back to a ready-to-ride battery, which is a relief after off-season storage.
The IP66 seal and rugged construction give me confidence in rain, mud, or city grime, and the internal stabilization handles the typical vibration from loud pipes and highway droning.
Real-world usage? It handles Harley touring loads, and even a bit of off-road whimsy when you’re not afraid to test it.
It’s not just about lighter weight; the overall package makes daily rides more predictable and reassuring.
Bottom line: it’s a noticeable upgrade for big-crank cruisers who want lighter weight, solid cold starts, and a smart readout you’ll actually use.
What Are Lithium Motorcycle Batteries and How Do They Work?
Lithium motorcycle batteries are advanced power sources known for their lightweight, high energy density, and superior performance compared to traditional lead-acid batteries.
- Lightweight Construction: Lithium batteries are significantly lighter than lead-acid batteries, often weighing only a fraction of their counterparts. This reduction in weight helps improve the overall handling and performance of the motorcycle.
- Higher Energy Density: These batteries store more energy in a smaller space, allowing for a compact design without sacrificing power. This means that a lithium battery can deliver the same amount of power as a larger lead-acid battery, making it an efficient choice for motorcycle enthusiasts.
- Longer Lifespan: Lithium batteries typically last longer than traditional batteries, often providing up to 10 years of service. Their durability is attributed to their ability to withstand more charge-discharge cycles without significant degradation.
- Faster Charging: One of the key advantages of lithium batteries is their ability to charge much faster than lead-acid batteries. Many lithium motorcycle batteries can regain a full charge in just a couple of hours, offering convenience for riders on the go.
- Temperature Resistance: Lithium motorcycle batteries perform well in a wide range of temperatures, making them suitable for various riding conditions. They maintain their efficiency even in extreme weather, whereas lead-acid batteries can be more susceptible to temperature fluctuations.
- Low Self-Discharge Rate: Lithium batteries have a much lower self-discharge rate compared to lead-acid batteries, allowing them to hold their charge for an extended period when not in use. This feature is particularly beneficial for riders who may not use their motorcycles frequently.
- Environmentally Friendly: Lithium batteries are generally considered more eco-friendly than lead-acid batteries, as they contain fewer harmful materials and are more recyclable. This aspect is increasingly important for consumers looking to minimize their environmental impact.
What Are the Key Benefits of Lithium Motorcycle Batteries for Motorcycles?
With a higher energy density, lithium motorcycle batteries can offer more power without increasing size, allowing manufacturers to design sleeker and more efficient motorcycles. This compactness also means that the battery can fit into tighter spaces on the bike, optimizing its design.
The longevity of lithium batteries means that riders can enjoy their motorcycles without the frequent maintenance that comes with traditional batteries. This durability not only saves money on replacements but also minimizes the environmental impact associated with battery disposal.
Fast charging capabilities allow riders to quickly get back on the road without long waiting periods for battery replenishment. This is particularly beneficial for those who may be on long trips or need to recharge in short stops.
Consistent power delivery is essential for reliable motorcycle performance, particularly during starts and under load, and lithium batteries excel in maintaining voltage levels. This reliability helps prevent performance issues that can arise from weaker battery outputs.
The ability of lithium batteries to withstand vibrations and shock makes them ideal for motorcycles, which are subjected to a lot of movement and jolts during rides. This resilience helps ensure that the battery maintains its functionality and longevity under tough riding conditions.
What Factors Should You Consider When Choosing a Lithium Motorcycle Battery?
Charge cycle life refers to how many times the battery can be charged and discharged before its performance diminishes; a longer cycle life translates to better value over time. Although lithium batteries come with a higher initial price tag, their longevity and lower maintenance needs can lead to savings in the long run.
Brand reputation plays a significant role in the decision-making process as established brands often have better customer service and warranty policies. Finally, safety features such as overcharge protection are vital to prevent accidents and ensure the battery lasts as long as possible without issues.
Which Lithium Motorcycle Batteries Are Considered the Best in the Market?
The best lithium motorcycle batteries combine high performance, reliability, and longevity for motorcycle enthusiasts.
- Shorai LFX Series: Renowned for their lightweight design and high cranking power, Shorai batteries are a favorite among sportbike riders.
- Antigravity Batteries: Known for their compact size and incredible power-to-weight ratio, Antigravity offers batteries with built-in jump-start capabilities.
- EarthX Lithium Batteries: EarthX batteries are designed with advanced technology, providing excellent safety features and a long lifespan, ideal for both street and off-road applications.
- Ballistic Performance Batteries: Ballistic batteries are lightweight and come with a built-in battery management system, ensuring safe and efficient operation.
- Yuasa YTZ Series: Yuasa, a well-known name in the battery industry, offers lithium options that provide reliability and performance, making them a trusted choice for many riders.
Shorai LFX Series: These batteries are celebrated for their high energy density, which results in a significant reduction in weight compared to traditional lead-acid batteries. Additionally, they have high cranking amps, making them suitable for motorcycles with demanding starting requirements.
Antigravity Batteries: Antigravity batteries are particularly appealing due to their ultra-lightweight design and small form factor, which allows for easier installation in tight spaces. Their unique jump-start feature can be a lifesaver in emergencies, as it enables users to jump-start their own battery without needing another vehicle.
EarthX Lithium Batteries: EarthX batteries incorporate advanced features such as a built-in Battery Management System (BMS) that enhances safety by monitoring and controlling the battery’s performance. This technology helps extend the battery’s lifespan while maintaining stable power delivery, making it suitable for both competitive and casual riders.
Ballistic Performance Batteries: Ballistic batteries are designed for high-performance applications and are known for their durability and reliability under extreme conditions. Their integrated battery management system prevents overcharging and discharging, ensuring optimal performance and safety during use.
Yuasa YTZ Series: Yuasa has a long-standing reputation for quality and reliability in the battery market, and their YTZ Series lithium options are no exception. These batteries offer a balance of performance and affordability, making them a solid choice for everyday riders looking to upgrade from lead-acid batteries.
What Do Customer Reviews Indicate About Popular Lithium Motorcycle Batteries?
- Weight and Size: Many customers appreciate the lightweight and compact design of lithium motorcycle batteries compared to traditional lead-acid options. This characteristic allows for easier installation and contributes to improved handling and performance of the motorcycle.
- Cold Weather Performance: Reviews often mention superior cold cranking amps in lithium batteries, which means they perform well in low temperatures. This feature is particularly beneficial for riders in colder climates, ensuring reliable starts when needed most.
- Charging Speed: Users frequently report that lithium batteries charge faster than their lead-acid counterparts. This quick charging capability allows riders to spend less time waiting and more time on the road, making lithium batteries a convenient choice for active motorcyclists.
- Longevity and Durability: Many reviews highlight the longer lifespan of lithium batteries, often lasting several years longer than traditional batteries. Customers appreciate this durability as it translates into better value over time, reducing the frequency of replacements.
- Maintenance Requirements: A common point of praise is the minimal maintenance required for lithium batteries. Unlike lead-acid batteries that may need regular checks for water levels or corrosion, lithium options generally require no upkeep, making them hassle-free for users.
- Price vs. Performance: While some reviews note that lithium batteries can be more expensive upfront, many users feel that the performance benefits justify the cost. Customers often express satisfaction with the investment, citing improved efficiency and reliability as key factors in their decision.
- Safety Features: Positive reviews frequently mention built-in safety features such as over-discharge protection, which prevents damage to the battery. This aspect reassures customers that they are making a safe choice for their motorcycles, minimizing risks associated with battery failure.
What Are the Common Issues Users Face with Lithium Motorcycle Batteries?
The self-discharge rate, although lower than traditional batteries, still necessitates periodic maintenance. If a lithium battery sits unused for too long without being charged, it can enter a low-voltage state, making it difficult or impossible to recharge.
Cost is a significant factor for those considering lithium motorcycle batteries. While they offer superior performance and longevity, the higher initial investment can be a barrier for users who are accustomed to the lower price of lead-acid batteries.
How Can You Maintain Your Lithium Motorcycle Battery for Optimal Performance?
Maintaining your lithium motorcycle battery is crucial for ensuring longevity and reliability. Follow these tips for optimal performance:
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Regular Charging: Lithium batteries benefit from staying charged. Use a smart charger that automatically adjusts the charge based on the battery’s need. Consider charging after each ride or at least every few weeks.
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Temperature Management: Store your battery in a climate-controlled environment. Extreme temperatures can affect performance and lifespan. Aim for storage between 32°F and 77°F (0°C to 25°C).
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Clean Terminals: Periodically check and clean the battery terminals to prevent corrosion. Use a mixture of baking soda and water to clean any buildup, followed by rinsing and drying thoroughly.
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Avoid Deep Discharges: Lithium batteries perform best when they’re not fully discharged. Aim to recharge when the battery hits around 20% capacity to extend its life.
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Check Voltage: Regularly monitor the battery voltage using a voltmeter. A fully charged lithium battery should read about 13.2 to 13.4 volts.
Implementing these maintenance practices can greatly enhance the lifespan of your lithium motorcycle battery and ensure reliable performance on the road.
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