1999 E-Ton 50cc TXL Lithium Battery Replacement YTX4L-BS LiFePO4 For Motorcyle

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  • $64.99
  • Regular price $89.99

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!


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.


Model PTX4L
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
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

Supporting Documents

Spec Sheet Product Manual

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