Case Study: How a European Scooter Brand Grew 200% with CHISEN Batteries

When a mid-sized electric scooter manufacturer in Eastern Europe approached CHISEN in early 2022, they faced a familiar problem: their previous battery supplier delivered inconsistent quality. Warranty claims had tripled over two years, and their brand reputation was suffering.

“We were spending more on warranty replacements than we made on profit,” the company’s operations director recalled. “Our return rate hit 12% — completely unsustainable.”

The CHISEN Solution

CHISEN’s team recommended migrating from generic 6-DZF-20 batteries to CHISEN’s premium 6-EVF-50 series with enhanced cycle life specifications.

Key Changes Implemented:

• Upgraded from standard 6-DZF-20 to CHISEN 6-EVF-50 deep cycle batteries
• Introduced quality inspection protocol at client receiving dock
• Established monthly performance review with CHISEN technical team
• Phased transition over 6 months to minimize inventory disruption

The Results (2022–2024)

Why CHISEN’s EV Battery Technology Made the Difference

CHISEN’s 6-EVF series batteries feature proprietary active material formulations delivering:

• Deeper discharge tolerance — up to 80% depth of discharge without damage
• Longer cycle life — 650+ cycles at standard conditions vs. industry average of 350
• Superior high-temperature performance — critical for European summer conditions
• Consistent voltage output — smooth acceleration throughout the entire discharge cycle

The Partnership Today

The company now operates as one of CHISEN’s key OEM partners in Eastern Europe, distributing CHISEN batteries alongside their own branded scooters. Their growth trajectory of 200% over two years has made them a regional market leader.

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