Upstart Battery 12V 4Ah YTX5L-BS Replacement – AGM, Sealed, Ready to Install | GTX5L-BS & Honda 5L-BS Compatible

Ready-to-Install 12V 4Ah YTX5L-BS Replacement

Upstart Battery delivers a compact, maintenance-free 12-volt 4Ah YTX5L-BS replacement designed for instant installation. This AGM sealed unit arrives pre-charged, so there’s no need for acid filling or extended setup. Simply drop it into your youth ATV, scooter, or small motorcycle and ride. The compatibility list covers a wide range of 5L-BS family replacements, making it a flexible option for riders who value ready power without fuss.

Compact Power for Small Engines

Despite its modest size, this battery provides dependable cranking for four-stroke dirt bikes, kids’ quads, and mopeds. It’s well-suited for vehicles with low-to-moderate starting demands and offers a practical, budget-conscious alternative to similar GTX5L-BS-type batteries in form and function.

Sealed Maintenance-Free Design

The unit follows a sealed AGM design in the 5L-BS form factor, delivering leak-proof safety and removing the need for ongoing fluid checks. This makes it a sensible choice for seasonal use or vehicles that sit idle for extended periods.

Budget-Friendly Performance

As a dependable replacement, it supports a broad set of models, including Honda CRF150F, CRF250X, Yamaha YFM90R, and Polaris Predator 90, among others. It serves as a cost-effective YTX5L BS replacement option while staying compatible with widely used 12V riders and similar 5L-BS batteries.

Maintenance-Free by Design

With maintenance-free AGM technology and a straightforward terminal setup, you won’t need routine fluid checks. This model is recognized as a 5LBS-style battery and aligns with YTX5L-BS 12V 5Ah family replacements. Terminal screws are included for quick, secure connections, making installation simple even for casual riders.

What’s in the Box and How It Helps

Along with a sealed battery, you receive a ready-to-run unit designed for straightforward installation. The design emphasizes safe, leak-free operation and is a practical option for seasonal riders and daily commuters alike.

Key benefits

• Pre-charged and ready to install with no acid handling
• AGM sealed design for leak-proof, maintenance-free use
• 12V 4Ah capacity suitable for small engines and low-to-moderate starting needs
• Compact form factor fits tight engine bays
• Broad compatibility within the 5L-BS battery family

Compatibility highlights

• Honda 5L-BS family (CTX5L-BS, CT5L-BS) and GTX5L-BS/DTX5L-BS
• ES5LBS, PTX5L-BS, ATX5L, ET5L
• Popular brands: Arctic Cat, E-Ton, Kasea, Kawasaki, KTM, Kymco, Polaris, Suzuki, Yamaha, RS4, SR50 and more