Lead-acid batteries are commonly used in e-trikes for their low cost, stable voltage and safe usage. However, their short life and difficult maintenance are downsides.

After 1-2 years, lead-acid capacity drops significantly. Many owners install new batteries only to find their e-trike still lacks power. Experts have analyzed the main causes:

1. Motor wear – Demagnetization over 5-6 years reduces torque and range.
2. Rusty hubs and brakes – Rain and sun corrode iron parts without proper lubrication and care, increasing resistance.
3. Wiring issues – Internal oxidation increases resistance, lowering voltage. This is often overlooked.

Aside from the battery, inspect the motor, hubs, brakes and wiring when power is still lacking with a new battery installed. Professional technicians can accurately diagnose and pinpoint the root cause. Keep your e-trike optimized through comprehensive maintenance.