Home 2003 Yamaha TTR125E/LE Electric Start Lithium Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle
2003 Yamaha TTR125E/LE Electric Start Lithium Iron Phosphate Battery Replacement YTX4L-BS LiFePO4 For Motorcyle

2003 Yamaha TTR125E/LE Electric Start Lithium Battery Replacement YTX4L-BS LiFePO4 For Motorcyle

Sale price $139.99
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  • Voltage - 12.8 V
  • Weight - 1.7 lb.
  • PbEq Capacity - 7 Ah
  • Cranking Amps - 210 CA
  • Dimensions - 4.5 in x 2.8 in x 3.3 in
  • Fully integrated battery management system (BMS).
  • Bluetooth-enabled for real-time monitoring via smartphone.
  • Built-in jump-starting feature and shake-to-restart functionality.
  • Replaces YTX4L-BS, YTX5L-BS, YTX7L-BS, YTZ5S, YTZ7S, & YTZ8V

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Powertex PTX1 Lithium Powersport Battery

Why Choose Powertex PTX1?

Engineered for Performance. Built to Last.

Universal Fit

4 terminals & spacers allows battery to be mounted in any orientation. Compatible with multiple OEM models.

Lightweight Power

1/3 the weight of lead-acid batteries with nearly double the cranking power and efficiency.

All-Weather Ready

Excels in extreme temperatures, delivering a high discharge rate from -4°F to 140°F.

Long-Lasting

Lasts 2-3 times longer than lead-acid batteries with over 2,000 charge cycles.

Smart Technology

Fully integrated BMS with internal jump start, shake-to-restart, and Bluetooth monitoring.

Eco-Friendly

Non-toxic, lead-free, and fully compliant with RoHS standards, meets environmental safety regulations.

Why Switch to Lithium?

The Advantages of Lithium Iron Phosphate (LiFePO4) Batteries

  • Advanced BMS & Safety: Built-in BMS protects against overcharging, overheating, and short circuits, ensuring safe and long-lasting performance.
  • Internal Jump-Start: Jump-start your vehicle directly from the battery without external cables.
  • Longer Lifespan & Efficiency: Lasts 2-3x longer than lead-acid with over 2000 charge cycles, offering higher cranking power and better efficiency.
  • Bluetooth Connectivity: Monitor battery health in real time through Bluetooth on your smartphone.
  • Universal Fit: 4 terminals and spacers for easy installation and compatibility with multiple OEM models.
  • Low Self-Discharge Rate: Retains charge longer, ensuring your battery is ready to use when you need it.

Universal Fit for Multiple Models

Our lithium powersport battery is designed for maximum compatibility. Featuring four terminals and spacers, it can be easily customized to replace several OEM models, including:

  • YTX4L-BS
  • YTX5L-BS
  • YTX7L-BS
  • YTZ5S
  • YTZ7S
  • YTZ8V

With its versatile design, this battery ensures a perfect fit and seamless installation, making it the ideal upgrade for your powersport vehicle.

Wide Range of Applications

This Powertex PTX1 lithium iron phosphate powersport battery is perfect for motorcycles, ATVs, scooters, UTVs, snowmobiles, go-karts, jet skis, and more! It’s also an excellent replacement for all OEM lead-acid batteries of similar size and is ideal for street bikes up to 500-600cc. Designed for durability and performance, it’s the ideal power solution for all your vehicle needs.

What Customers Are Saying

Real Feedback from Enthusiasts Who’ve Made the Switch to Powertex Lithium Batteries

Unmatched Performance!

I replaced my old lead-acid battery with a Powertex lithium, and the difference is night and day. My bike starts instantly, even in freezing weather!

Chris R., Enduro Rider

Lightweight and Reliable.

This battery is so much lighter than my OEM battery, and it powers my 600cc sport bike effortlessly. Highly recommended for any rider!

Alex P., Track Day Enthusiast

Perfect Fit and Long-Lasting.

The spacers and four-terminal design made installation a breeze. It’s been over a year, and it still holds a charge like the day I bought it!

Jordan L., Daily Commuter

PowerTex Batteries' Lithium Iron Phosphate LiFePO4 LFP Batteries are high performance, maintenance free, eco-friendly and very light! These Lithium-Ion LiFePO4 batteries are the perfect Sealed Lead Acid drop-in replacement since they are 1/2 to 1/3 the weight, have 2500-7000 cycles (compared to 300 or so from SLA) and require no maintenance. Applications vary but mostly used in Motorcycles, ATVs, Scooters, Jetskis, Wave-runners, Snowmobiles, Dirt Bikes & More!

About

Rated above IP66, our motorcycle batteries are a type of rugged & waterproof intelligent LFP lithium-ion powersports battery that can be used indoors and outdoors. The LCD screen can monitor in real time the battery voltage, capacity and days in use. With an incorporated BMS (Battery Management System) this battery will alarm the user when it detects abnormal voltage or capacity and display a maintain warning when it detects a need for charging. Our Lithium Iron Phosphate LiFePO4 battery can still work normally after more than a year of storage without frequent charging.

PowerTex Batteries use cylindrical Lithium Iron Phosphate (LiFePO4) cells with superior performance to achieve longer service life, higher safety and reliability standards, lighter weight and low self-discharge rate. Since this battery does not contain any corrosive liquids or heavy metals, it is Eco-Friendly and better for the environment compared to other batteries. With no maintenance required, this battery is easy to use and can be mounted in any position.

Battery Features

  • 100% pre-delivered inspection, with safe and reliable long-term quality assurance.
  • Highly-waterproof design and rated above IP66, this battery can be used normally under rainy conditions in the outdoors.
  • Longer service life than lead acid batteries, with a life expectancy of about 5-10 years.
  • Low self-discharge rate, a fully charged lithium battery will perform after a year without use.
  • Maintenance free and can be installed in any position.
  • Low self-discharge rate, about 2% per calendar month.

Specifications

Model PTX4L
Replaces
YTX4L-BS, YTX4L, YTZ5S, YB4L-A, YB4L-B
Dimensions LxWxH 4.5 x 2.8 x 3.3 inches
Terminal Nut & Bolt
Weight 1.5 lbs
Voltage 12.8 Volts
Capacity 2.5 Amp Hours
Power 35.8 Watt Hours
Cranking Amps 75 Cranking Amps
Discharge Current 2.5 Amps
Maximum Discharge Current 7.5 Amps
Max Charging Current 2.5 Amps
LiFePO4 Cell Model 26650
Number of LiFePO4 Cells 4 Pcs
Cut-off Voltage 10.0V
Charging Ambient Temperature
32℉ - 113℉
Discharging Ambient Temperature -4 ℉ - 131
Charging Voltage
Cycle
14.4V ~ 14.6V
Float 13.6V ~ 13.8V
Capacity Affected by Temperature  104℉ 101%
77 100%
32 93%
-4 65%
Residual Capacity After Storage at 77   3 Months 75%
6 Months 50%
12 Months
20%

Supporting Documents

Spec Sheet Product Manual


Nominal Voltage - 12.8V

Weight - 1.7lb

Dimensions (LxWxH) - 4.5" x 2.75" x 3.3"

Dimensions w/ 1 Spacer (LxWxH) - 4.5" x 2.75" x 4.1"

Dimensions w/ 2 Spacers (LxWxH) - 4.5" x 2.75" x 4.9"

Nominal Capacity - 3.5Ah

PbEq Capacity - 7Ah

Watt Hours - 42W

Cranking Amps - 210A

Max Constant Discharge Current - 70A @ 20C

Charging Cut-Off Current - 17.5A @ 5C

Charging Cut-Off Voltage - 14.6V

Discharge Cut-Off Voltage - 8V

Recommended Charging Ambient Temperature Range - 32℉-131℉

Recommended Discharge Ambient Temperature Range - -4℉-140

Customer Reviews

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