采用电池槽盖、极柱双重密封设计，防止漏液，可靠的安全阀可防止外部空气和尘埃进入电池内部。
Fully sealed: with cover and pole double seal design to prevent leakage of electrolysis. and the reliability of safe-valve prevent oxygen and dust from outside enter into the battery.
高强度ABS塑料电池槽、盖，结构紧凑，具有耐冲击，抗震动性能好的特点。
Battery case and lid are made of high-strength ABS in a compact structure, characterized by the good resistance to impact and vibration.
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