Forgetyo LiFePO4 Motorcycle & ATV Battery YTX20L-BS 12.8V 10Ah — Lightweight, Built-in BMS

The Forgetyo Lithium YTX20L-BS is a compact 12.8V, 10Ah LiFePO4 powersports battery engineered to replace lead-acid units with lighter weight, higher cold-cranking power, and integrated BMS protection.

This battery is designed for motorcycles, ATVs, UTVs, jet skis, snowmobiles, riding mowers, generators and other small engines where a reliable, maintenance-free 12V source is needed. With a physical size and terminal layout matching common YTX20L-style batteries, the Forgetyo unit arrives fully charged and ready to install. It combines LiFePO4 chemistry for longer cycle life with a built-in battery management system (BMS) that protects cells from over-charge, over-discharge and short circuits.

Will this battery fit my vehicle and how do I check?

Measure your current battery and compare dimensions, terminal positions and specifications. The Forgetyo YTX20L-BS measures 6.89" L x 3.43" W x 6.1" H, weighs 3.7 pounds, and uses a G3 terminal layout with the negative terminal on the left and positive on the right.

• Physical size: 6.89" x 3.43" x 6.1" (L x W x H)
• Terminal layout: left negative (-), right positive (+)
• Compatible part numbers: DLF20L-BS, YTX20, YTX20L, YTX20L-BS
• CCA/starting: 700 CCA, 128 Wh energy capacity

How does the Forgetyo LiFePO4 compare to a lead-acid battery?

This lithium battery is significantly lighter and faster-cranking than a comparable lead-acid unit while being maintenance-free. It delivers higher starting power and a much longer cycle life, without acid handling or periodic water top-ups.

• Weight: about one-third of a typical lead-acid equivalent (3.7 lb)
• Start performance: up to 5× faster start-up and 10× start power
• Service life: roughly 5× longer and ≧2000 deep cycles
• Maintenance: fully sealed, no acid, no watering, arrives charged

What charging and temperature limits should I follow?

Charge with any compatible LiFePO4 charger set to 14.6V within a 2A–5A current range for best results. The battery supports charging at 2A (about 5 hours full) or 5A (about 2 hours full); for longevity a 2A (0.2C) charge is recommended. Observe operating temperatures: charge between 0°C and 45°C, and discharge between -20°C and 60°C.

• Recommended charger: 14.6V LiFePO4 charger, 2A–5A
• Fast charge times: ~5 hours at 2A, ~2 hours at 5A
• Charge temp range: 0°C to 45°C; discharge: -20°C to 60°C
• BMS: built-in cell balancing and protection layers

Which machines commonly use this battery?

The Forgetyo YTX20L-BS is compatible with many small vehicles and equipment that accept YTX20L-style batteries. Typical uses include motorcycles, ATVs, UTVs, personal watercraft and light utility equipment.

• Motorcycles and dirt bikes (Harley-compatible fits with matching terminals)
• ATV/UTV, 4-wheelers, go-karts, quads
• Jet skis, Sea-Doos, PWCs, snowmobiles
• Riding lawn mowers, generators, tractors and golf carts

Who is this for: Riders and equipment owners who want a lightweight, maintenance-free replacement for lead-acid batteries—especially those seeking stronger cold-start performance and longer service life for seasonal and daily-use machines. It’s ideal for technicians and enthusiasts who can verify physical dimensions and terminal orientation before swapping, and for anyone who prefers a battery that arrives charged and protected by an internal BMS.