Forgetyo LiFePO4 Motorcycle Starter Battery YTX20L-BS 12.8V 10Ah — 700A Crank, Lightweight 3.73 lb

The Forgetyo YTX20L-BS is a lightweight LiFePO4 12.8V 10Ah motorcycle starter battery that delivers up to 700A cranking power, long cycle life, and built-in BMS protection for ATVs, UTVs, jet skis, snowmobiles and more.

The Forgetyo YTX20L-BS replaces conventional lead-acid motorcycle batteries with a compact, high-energy LiFePO4 pack engineered for fast starts, extended service life, and safer charging. At just 3.73 pounds and with energy density several times higher than AGM lead-acid units, this battery reduces weight without compromising starting torque. It is a drop-in option where space, terminal orientation (left-negative, right-positive) and mounting match the original battery.

How does this battery improve starting performance?

The YTX20L-BS delivers a higher peak cranking current (max 700A) compared with many same-size lead-acid batteries, so engines turn over faster and more reliably — especially in cold starts. The LiFePO4 chemistry maintains voltage under load and recovers quickly between starts.

• Max CCA: 700A for stronger cranking power
• 12.8V nominal, 128Wh energy capacity
• Consistent voltage delivery under load for reliable ignition

What are the physical specs and installation considerations?

Size and terminal placement are critical for compatibility. The Forgetyo YTX20L-BS measures 6.89" L × 3.43" W × 6.1" H, weighs 3.73 lb, and uses left-negative/right-positive terminals. Confirm your vehicle’s battery compartment and cable orientation before swapping.

• Dimensions: 6.89" × 3.43" × 6.1" (L×W×H)
• Weight: 3.73 pounds — roughly one-third the weight of a comparable lead-acid battery
• Polarity: left-negative, right-positive; check fitment for ATVs, UTVs, snowmobiles, PWCs

How do charging, safety, and durability compare to lead-acid batteries?

The Forgetyo battery includes an internal battery management system (BMS) that protects against overcharge, over-discharge, short circuit and overheating. It supports 14.6V charging with recommended 2A–5A lithium-compatible chargers, and charges faster than lead-acid while providing far more cycle life.

• BMS protection extends usable life and prevents common failure modes
• Charge window: use 14.6V 2A–5A lithium charger; approx. 5 hours at 2A or 2 hours at 5A
• Cycle life: ≧2000 deep cycles vs ≈300 cycles for typical lead-acid

Will this battery work in my vehicle or equipment?

The YTX20L-BS fits many powersports and small-engine applications if the physical size, terminal orientation and required starting current align. It’s suitable for ATVs, UTVs, four-wheelers, jet skis, personal watercraft, snowmobiles, generators and riding mowers when installation space matches.

• Applications: ATV, UTV, PWC, jet ski, snowmobile, generator, riding mower
• Verify mounting space and cable polarity before purchasing
• Not application-specific — compatibility depends on size and electrical requirements

Who is this for: The Forgetyo YTX20L-BS is designed for riders and equipment owners who want a high-performance, lightweight starter battery that reduces weight, increases cranking power and lasts far longer than traditional lead-acid units. It’s aimed at powersports enthusiasts, weekend riders, and anyone upgrading older batteries to modern LiFePO4 technology — provided the battery compartment and terminal orientation fit your machine. Backed by a two-year warranty and 24/7 customer support, it’s a practical upgrade for machines that need reliable starting and low maintenance.