CHISEN tracked battery performance across 1.2 million vehicles in 23 countries over a 24-month observation period. Here is what the data actually shows.
Battery Lifespan by Application
| Application | CHISEN Avg. Lifespan | Industry Average |
|---|---|---|
| Daily commuter (20–40km/day) | 28 months | 14 months |
| High-frequency commercial (60km+/day) | 18 months | 9 months |
| Light leisure use | 36 months | 20 months |
| Seasonal/occasional use | 42 months | 28 months |
Cycle Life: Third-Party Verified
Independent laboratory testing (SGS, Bureau Veritas) under standard conditions:
- CHISEN 6-DZF series: 450 cycles at 80% depth of discharge
- CHISEN 6-EVF series: 650 cycles at 80% depth of discharge
- CHISEN 6-DMF series: 580 cycles at 80% depth of discharge
- Industry average for equivalent applications: 280–350 cycles
What Actually Fails (Warranty Returns Analysis)
- 62%: User damage (overcharging, physical damage, water immersion) — not manufacturing defects
- 23%: Natural end-of-life (capacity below 60% after rated cycle count)
- 11%: Application mismatch (battery undersized for motor power)
- 4%: Confirmed manufacturing defect — full warranty replacement
“Data transparency is part of our commitment,” CHISEN’s quality director said. “We share our performance data because our partners deserve to make informed decisions.”
📩 Email: sales@chisen.cn 📱 WhatsApp: +86 131 6622 6999 🌐 www.chisen.cn
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