Telefunken

Telefunken Battery Regeneration – full performance for your e-bike

Telefunken has been a trusted German brand for decades, known for its innovation in electronics and more recently for high-quality e-bikes. These bicycles are valued for their comfort, durability and modern design. At the heart of every e-bike lies the battery, which determines range, reliability and daily usability. Over time, however, even the best lithium-ion packs lose capacity. Shorter rides, longer charging times, or sudden power cut-offs are signals that the battery is wearing out. Fortunately, instead of spending money on a costly replacement, Telefunken battery regeneration allows you to restore your pack to its original performance.

Why Telefunken batteries degrade over time

Lithium-ion batteries, no matter how well engineered, are subject to natural wear. Each pack has a limited number of charge and discharge cycles. Storing the bike in extreme temperatures, frequent deep discharges, or keeping the battery fully charged for long periods accelerate cell aging. The consequences include reduced range, unstable assistance from the motor, and inaccurate charge indicators. Telefunken regeneration addresses these issues by replacing the aged cells with fresh, branded ones and carefully testing the electronics.

Step-by-step regeneration process

Every battery in our workshop is processed with precision and attention to detail. We follow a proven multi-stage procedure:

1. Detailed diagnostics: measuring capacity, internal resistance, and analyzing the Battery Management System (BMS).
2. Safe disassembly: the casing is carefully opened, old cells are removed, and contacts are cleaned of corrosion or dirt.
3. Installation of new cells: only high-quality Samsung, Panasonic or Sanyo cells are used, ensuring longevity and stability.
4. Electronics inspection: checking sensors, fuses, resistors and protective circuits to guarantee safety.
5. Balance and calibration: ensuring cells are evenly charged and the BMS communicates correctly with the motor system.
6. Final performance tests: full charge and discharge cycles under real load conditions to confirm restored capacity.
7. Sealing and documentation: the battery is resealed, labeled and returned with a written warranty.

Advantages of Telefunken battery regeneration

• Much more affordable than buying a brand-new battery.
• Eco-friendly – reusing the case and reducing electronic waste.
• Use of only premium branded cells ensures durability.
• Restores full range and stable motor assistance.
• 12–24 month written warranty on the new cells.
• Fast service – most orders completed within just a few business days.

Telefunken – German tradition with modern technology

Telefunken has a rich history dating back to the early 20th century, with a reputation for innovation in audio, radio and consumer electronics. Today, the brand is also recognized in the world of e-mobility, producing electric bikes that combine classic German engineering with modern design. Many riders choose Telefunken because of its reliable systems and high comfort. With Telefunken battery regeneration, your e-bike retains these strengths while avoiding the expense of replacing the entire battery.

Why choose our service?

We have more than 14 years of experience in battery regeneration and thousands of successful projects. Our specialists work exclusively with brand-new cells from trusted manufacturers and advanced diagnostic equipment.