We own the patent over the battery rubber vent cap for maintenance free sealed lead-acid battery. Patent No. ZL 2004 2 0036404.8

CUSTOMIZATION: Available

All the indicators of the battery rubber vent caps' raw material are rigorously tested, the quality of every batch of raw material can be guaranteed. Raw material meet ROHS

We can design suited size and opening&closing pressure according customer's battery type and requirements of use

1. The raw materials from all over the world are select elaborately. All indexes are strictly tested by IQC to ensure the quality of each batch of raw materials.
2. Bayonet battery vent plugs are separately manufactured by us. The strict selection of quality inspectors ensures the excellent quality of products before and after battery vent valve assembly.
3. Bayonet battery vent plugs' opening and closing pressure of safety vent plug can be designed upon the customer's request.
4. All assembled bayonet battery vent plugs are strictly checked by OQC to ensure the quality of products delivered.

1. The raw materials from all over the world are select elaborately. All indexes are strictly tested by IQC to ensure the quality of each batch of raw materials.
2. All components are separately manufactured by us. The strict selection of quality inspectors ensures the excellent quality of products before and after battery vent valve assembly.
3. The opening and closing pressure of battery vent plug can be designed upon the customer’s request.
4. All assembled EFB battery vent plugs are strictly checked by OQC to ensure the quality of products delivered.