Forgetyo Lithium YTX4L-BS 12.8V 2.5Ah Motorcycle Starter Battery — 250 CCA, LiFePO4, Lightweight 0.99 lb

Forgetyo YTX4L-BS is a compact 12.8V LiFePO4 starter battery that delivers up to 250 CCA in a lightweight, long‑life package designed to replace conventional lead‑acid units in motorcycles, ATVs, jet skis and more.

This lithium starter battery combines high energy density, an integrated battery management system (BMS) and dramatically lower mass to give reliable starting power without the weight penalty of an AGM or flooded lead‑acid battery. The cell chemistry and protective electronics reduce routine maintenance and improve cycle life, while the physical form factor matches common YTX4L‑BS installations for easy swapping.

How much starting power and runtime can I expect from this battery?

The Forgetyo YTX4L‑BS delivers a maximum cold cranking amperage of 250A for reliable engine starts and provides 2.5Ah (12.8V nominal) of usable energy. While its capacity is smaller than many deep‑cycle batteries, the high CCA and low internal resistance prioritize quick engine starts and repeated crank cycles.

• Rated 12.8V, 2.5Ah (32Wh) with up to 250 CCA for starting.
• Higher energy density—3–5× that of comparable lead‑acid by weight.
• Lightweight at ~0.99 lb, improves vehicle weight distribution.
• Optimal for short bursts of high current (starter motor use).

Is this a safe and maintenance‑free replacement for lead‑acid batteries?

Yes — Forgetyo integrates a BMS that continuously protects against overcharge, overdischarge, short circuits and thermal stress. That protection helps prevent common failure modes found in unprotected cells and reduces the need for regular electrolyte checks or maintenance typical of flooded batteries.

• Built‑in BMS automatically disconnects on dangerous conditions.
• Recommended charging with a 14.6V lithium charger (1A suggested).
• Wide operating temperature window from −20°C to 85°C for seasonal use.
• Plug‑and‑play polarity: right positive, left negative as standard.

Which vehicles and battery models is the YTX4L‑BS compatible with?

The Forgetyo YTX4L‑BS is sized and spec'd to replace standard YTX4L‑BS starter batteries and fits many small engine starts. It works across motorcycles, scooters, ATVs, UTVs, jet skis, snowmobiles, generators and other powersports machines when physical size, terminal orientation and starting power match.

• Direct replacement for YTX4L‑BS form factor and terminal layout.
• Suitable for motorcycles, quads, 4‑wheelers, PWCs, snowmobiles, generators.
• Check installation space and terminal polarity before swapping.
• Ideal where reduced weight and higher cycle life are desired.

How long will the Forgetyo battery last compared with lead‑acid?

This LiFePO4 battery is engineered for far more cycles than typical lead‑acid starters, translating to lower replacement frequency and lifetime cost. Expect multiple times the cycle life under normal use, with manufacturer support for defects.

• Designed for roughly 2000 discharge cycles versus ∼300 cycles on lead‑acid.
• Two‑year warranty against manufacturing defects and 24/7 support.
• Reduced self‑discharge compared with lead‑acid for longer storage intervals.
• Keep on a compatible lithium charger for best long‑term health.

Who is this for: The Forgetyo YTX4L‑BS is aimed at riders and powersports owners who want a lightweight, high‑crank starter battery that cuts replacement frequency and improves vehicle handling. It’s best for machines that need reliable cold starts and where installation space and terminal polarity match the YTX4L‑BS footprint. If you prefer lower weight, built‑in battery protection and a long service life over the lower upfront cost of lead‑acid, this lithium starter is a practical upgrade.