Lithium Motorcycle Battery YTZ7S YTX5L-BS LiFePO4 12V 3Ah - High

Our review of the Lithium Motorcycle Battery YTZ7S YTX5L-BS finds it best for riders and powersports owners who want a lightweight, maintenance-free replacement for small lead-acid batteries. The single biggest reason to buy is its combination of low mass and long cycle life: at roughly 1.98 lbs and about one third the volume of equivalent lead-acid units, it makes installation and weight balance noticeably easier while promising far longer service life than conventional batteries.

Key Features

• Compact size: The battery measures 4.44 in x 2.76 in x 4.13 in, making it a direct fit where space is limited and easier to stow under seats or confined compartments.
• Lightweight construction: At about 1.98 lbs, the LiFePO4 chemistry reduces pack weight compared with lead-acid alternatives, improving handling on small motorcycles and ATVs.
• High starting power: Rated at 250 CCA, it delivers the cold cranking amps needed for reliable starts on many small engines and power sports machines.
• Durable cycle life: The LiFePO4 design offers dramatically longer cycle life versus lead-acid, reducing replacement frequency and lifetime cost.
• Built-in protection: An automatic BMS provides maintenance-free operation, voltage display clarity, and safeguards against common battery failures.
• Wide compatibility: Labeled as a replacement for multiple YTZ/YTX family batteries, it fits many motorcycles, ATVs, UTVs, PWCs and scooters when dimensions and terminal orientation match.

Who It's For

This battery is aimed at riders and small powersports owners who need a lightweight, high-performance replacement for a YTZ7S or similar sized lead-acid battery. It is especially useful for those who value easier handling, reduced weight, and a battery that holds charge with low self-discharge during seasonal storage.

Those who should look elsewhere include users who cannot confirm identical terminal position or physical dimensions, and owners of machines that require higher CCA than 250. Also, larger vehicles or equipment with higher power demands will need a different battery class.

Pros & Cons

Pros

• Very light and compact, easing installation and improving vehicle weight distribution.
• Long expected cycle life compared with lead-acid, lowering long-term replacement costs.
• Maintenance-free with an automatic BMS and clear power/voltage behavior for safer use.

Cons

• Requires careful measurement of size and terminal polarity to ensure fit since not every model uses the same orientation.
• 250 CCA may be marginal for some larger or high-compression engines that demand more starting current.

Specifications

Our Verdict

The Lithium Motorcycle Battery YTZ7S YTX5L-BS is a practical upgrade for riders who need a lighter, longer-lived replacement for small lead-acid batteries and can confirm matching dimensions and terminal layout. With its built-in BMS, clear performance advantages in weight and cycle life, and 250 CCA starting power, it represents good value for most motorcycles, ATVs, UTVs and PWCs that specify similar YTZ/YTX sizes.

Frequently Asked Questions

Will this battery fit my bike?
Measure your existing battery and check terminal polarity; if dimensions and pole positions match, it will fit models that accept YTZ7S/YTX5L-BS style batteries.

Is this battery maintenance-free?
Yes, the pack includes an automatic BMS and is described as maintenance-free with low self-discharge.

Can it handle cold starts?
It is rated at 250 CCA, which provides reliable starting for many small engines, though larger high-compression engines may require higher CCA.