Bulls

Bulls Battery Refurbishment – restore full power to your e-bike

Bulls electric bikes are known for their German engineering, high performance, and long-lasting reliability. Whether used for city commuting or mountain adventures, their batteries deliver consistent power and range. However, like all lithium-ion batteries, they gradually lose capacity over time. If your e-bike’s range is shorter, charging takes longer, or you experience power drops, it’s time for a Bulls battery refurbishment. This cost-effective and eco-friendly service restores your battery’s original performance without the need to purchase a new one.

Why Bulls batteries lose capacity

Every lithium-ion battery has a limited number of charge and discharge cycles. Frequent use, temperature fluctuations, and improper storage accelerate the aging process. Bulls refurbishment replaces the old, worn-out cells with new branded ones – Samsung, Panasonic, or Sanyo – while thoroughly inspecting and testing the Battery Management System (BMS). This ensures your battery regains its full capacity and stable performance for years to come.

The Bulls battery refurbishment process

Each Bulls battery in our workshop undergoes a detailed multi-step restoration process designed for maximum reliability:

1. Diagnostics: voltage measurement, BMS testing, and load analysis.
2. Disassembly: opening the case, inspecting the electronics, and removing old cells.
3. Cell replacement: installation of new, high-quality Samsung, Panasonic, or Sanyo cells.
4. Safety checks: testing sensors, resistors, and protective circuits.
5. Final testing: full charge and discharge cycles under controlled conditions.

After completion, the battery is sealed, labeled, and shipped back to the customer with a 12–24 month warranty.

Benefits of Bulls battery refurbishment

• Much cheaper than purchasing a new battery.
• Eco-friendly – reduces electronic waste.
• Use of top-quality branded cells only.
• Restored range and stable power output.
• 12–24 month warranty included.
• Fast turnaround – most services completed within a few working days.

Bulls – power, precision, performance

Bulls is a leading German brand known for its innovative electric bikes and robust design. Their e-bikes are built to deliver endurance and control in every ride. With Bulls battery refurbishment, you can restore your bike’s power, extend its lifespan, and continue riding without compromise.

Why choose us?

With more than 14 years of experience and thousands of successful refurbishments, we specialize in professional battery restoration. We use only new, branded cells, advanced diagnostic tools, and provide written warranty documentation. Each refurbished Bulls battery is tested for safety, performance, and reliability before being returned to the customer.

A second life for your Bulls e-bike

Bulls battery refurbishment is a smart investment – it saves money, supports sustainability, and restores the full performance of your e-bike.