Wuldnmar

Wuldnmar YTX20L-BS Lithium Motorcycle Battery 12.8V 10Ah LiFePO4 — 700A CCA, Built-in BMS, Lightweight 3.73 lb

High-performance automotive accessories made for confident daily results

$229.99

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Why customers choose NorthTrail Auto

Wuldnmar YTX20L-BS is a lightweight 12.8V LiFePO4 motorcycle battery that delivers high cold-cranking power, long cycle life, and built-in BMS protection in a compact 6.89" × 3.43" × 6.11" package.

This lithium replacement battery is engineered for riders and powersports owners who want reliable starts without the bulk and maintenance of traditional lead-acid cells. It ships fully charged, weighs just 3.73 lbs, and pairs high starting performance (700A CCA, peak up to 800A) with the safer chemistry and smart electronics of LiFePO4. The result is a drop-in sized unit that fits many popular battery trays while improving start speed, cycle life, and overall portability.

How does the Wuldnmar battery improve starting performance?

Compared with typical lead-acid units, this LiFePO4 battery delivers much higher burst current and faster voltage recovery, which helps turn over larger engines more reliably. The high CCA rating and low internal resistance mean quicker starts, especially in cold conditions.

  • 700A cold-cranking amps (CCA), peak up to 800A for demanding starts
  • Low weight (3.73 lbs) reduces strain on mounts and improves handling
  • Fast voltage recovery for repeated starts during rides or multiple uses

What protection and battery management features are included?

Wuldnmar integrates a smart built-in Battery Management System (BMS) to protect the pack and the vehicle’s electrical system. The BMS monitors cell balancing and prevents conditions that commonly damage batteries, improving lifespan and operational safety.

  • Overcharge, over-discharge and overcurrent protection to prevent damage
  • Short-circuit protection and smart cell balancing for even aging
  • Designed to maintain stable output under vibration and regular powersports use

How do you charge and maintain this LiFePO4 battery?

Charging is straightforward when you use a compatible lithium charger rated 14.6V. The battery accepts a range of charge currents and can be topped up quickly or more gently depending on your charger to extend life.

  • Recommended charger: 14.6V lithium-compatible, 2A–5A current range
  • Typical full charge times: ~5 hours at 2A, ~2 hours at 5A
  • Ship-ready: arrives fully charged and requires no maintenance or watering

Will this fit my motorcycle or powersports vehicle?

The Wuldnmar YTX20L-BS is intended as a bolt-in replacement for many YTX20-series and similar batteries, but fitment depends on tray size and terminal configuration. Confirm your old battery’s physical dimensions, terminal polarity, and CCA before installing.

  • Physical size: 6.89" L × 3.43" W × 6.11" H — weight 3.73 lbs
  • Terminal layout: left negative (-) and right positive (+) G3 style
  • Compatible models: replaces YTX20, YTX20L, YTX20L-BS and DLF20L-BS equivalents

Who this is for: Riders, powersports enthusiasts, and small equipment owners who want a low-weight, maintenance-free battery with strong starting power. Ideal for motorcycles, ATVs, UTVs, scooters, jet skis, snowmobiles, riding mowers, go-karts, and generators where reduced mass, faster starts, and long service life matter. Verify dimensions, terminal polarity, and CCA first to ensure a correct direct replacement and use a proper lithium charger for best longevity.

FAQ

Q: Can I use a standard motorcycle charger with this battery?

A: Use a charger labeled for LiFePO4 or lithium 14.6V; standard lead-acid chargers may not charge correctly and could shorten battery life.

Q: Does this battery require maintenance or watering?

A: No maintenance or watering is needed; the Wuldnmar LiFePO4 ships fully charged and is maintenance-free.