1. Salt spray test: 35 ℃, 5% NaCl aqueous solution, pH 6.5 〜 7.2, continuous spray for 3 days, no rust on the metal sheet, impedance change within 50%.

2. Cold and hot shock: Low temperature -40 ± 2 ℃ for 30 minutes - room temperature 25 ℃ for 5 minutes - high temperature 125 ± 2 ℃ for 30 minutes - room temperature 25 ℃ for 5 minutes - cycle 1000 times, medium: air.

3. Boiling test: 85 ℃ 1000 ± 24H;

4. Double 85: Environmental temperature: 85 ℃± 2 ℃, environmental humidity: 85%, duration: 1000 ± 24H

5. High temperature test: 125 ± 5 ℃, 1000 ± 24h.

6. Low temperature test: -40 ± 5 ℃, 1000 ± 24h.

Waterproof rating: IP68

CTI (Leakage Trace Index Level): ≥ 600

Insulation: 1000V DC and above

Voltage resistance: AC3000V and above

Resistance parameter: R25=30k Ω± 1% R25/50=3950K ± 1%

Cooling fins for charging modules