




The YUASA YB4L-B is a lead/calcium battery with Yumicron CX technology, specially designed to deliver superior starting power and rock-solid reliability. Thanks to its optimized efficiency, it delivers 5-8% more power than high-performance Yumicron models, while requiring minimal maintenance. Ideal for motorcycles, scooters, quads and machines requiring stable, long-lasting voltage.
Reinforced starting power (CCA 45 A): reliable performance even in cold weather.
Yumicron CX lead/calcium technology: improved cycle life and resistance.
Low maintenance: designed for simple, long-lasting use.
Compact size: easy mounting on a wide range of motorcycles.
Delivered dry: activation with separate acid for better preservation before installation.
| Features | Value |
|---|---|
| Brand | YUASA |
| Reference | YB4L-B / YB4L-B(DC) |
| Technology | Lead acid - Classic |
| Voltage | 12 V |
| Capacity | 4 Ah |
| CCA | 45 A |
| Max. load capacity | 0,4 A |
| Delivery | Dry battery (acid-free) |
| Ventilation | Right |
| Dimensions (L x W x H) | 120.7 × 70 × 92 mm |
| Weight | 1.2 kg |
| Positive terminal | Right |
| Negative terminal | Left |
| Type of use | Motorcycle / Scooter / Quad |
Yuasa is the global benchmark for motorcycle batteries, renowned for its longevity, reliability and build quality. The YB4L-B is perfect for users looking for a robust, high-performance battery capable of ensuring safe starts over time.
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